Debug the packet flow when network traffic is not entering and leaving the FortiGate as expected. ", id=20085 trace_id=209 func=resolve_ip_tuple line=2799, id=20085 trace_id=209 func=vf_ip4_route_input line=1543, msg="find a route: gw-192.168.11.254 via port6", id=20085 trace_id=209 func=get_new_addr line=1219, msg="find SNAT: IP-192.168.11.59, port-31925". How to debug the packet flow Traffic should come in and leave the FortiGate unit. The tftp session helper reads the transfer ports selected by the TFTP client and server Before debugging any NP4 or NP6 interfaces, disable offloading on those interfaces. Match existing session in the original direction: id=20085 trace_id=211 func=resolve_ip_tuple_fast line=2727, msg="Find an existing session, id-00000e90, original, id=20085 trace_id=211 func=__ip_session_run_tuple, id=20085 trace_id=212 func=resolve_ip_tuple_fast. Replace with one of the following variables: If FortiGate is connected to FortiAnalyzer or FortiCloud, the diagnose debug flow output will be recorded as event log messages and then sent to the devices. ", id=20085 trace_id=2 msg="Find an existing session, id-00001cd3, original direction", id=20085 trace_id=2 msg="enter IPsec ="encrypted, and send to 15.215.225.22 with source 66.236.56.226 tunnel-RemotePhase1", id=20085 trace_id=2 msgid=20085 trace_id=2 msg="send to 66.236.56.230 via intf-wan1", Connecting FortiExplorer to a FortiGate via WiFi, Zero touch provisioning with FortiManager, Configuring the root FortiGate and downstream FortiGates, Configuring other Security Fabric devices, Viewing and controlling network risks via topology view, Leveraging LLDP to simplify Security Fabric negotiation, Configuring the Security Fabric with SAML, Configuring single-sign-on in the Security Fabric, Configuring the root FortiGate as the IdP, Configuring a downstream FortiGate as an SP, Verifying the single-sign-on configuration, Navigating between Security Fabric members with SSO, Advanced option - unique SAMLattribute types, OpenStack (Horizon)SDN connector with domain filter, ClearPass endpoint connector via FortiManager, Support for wildcard SDN connectors in filter configurations, External Block List (Threat Feed) Policy, External Block List (Threat Feed) - Authentication, External Block List (Threat Feed)- File Hashes, Execute a CLI script based on CPU and memory thresholds, Viewing a summary of all connected FortiGates in a Security Fabric, Supported views for different log sources, Virtual switch support for FortiGate 300E series, Failure detection for aggregate and redundant interfaces, Restricted SaaS access (Office 365, G Suite, Dropbox), IP address assignment with relay agent information option, Static application steering with a manual strategy, Dynamic application steering with lowest cost and best quality strategies, Per-link controls for policies and SLA checks, DSCP tag-based traffic steering in SD-WAN, SDN dynamic connector addresses in SD-WAN rules, Forward error correction on VPN overlay networks, Controlling traffic with BGP route mapping and service rules, Applying BGP route-map to multiple BGP neighbors, Enable dynamic connector addresses in SD-WAN policies, Configuring the VPN overlay between the HQ FortiGate and cloud FortiGate-VM, Configuring the VPN overlay between the HQ FortiGate and AWS native VPN gateway, Configuring the VIP to access the remote servers, Configuring the SD-WAN to steer traffic between the overlays, Configuring SD-WAN in an HA cluster using internal hardware switches, Associating a FortiToken to an administrator account, Downgrading to a previous firmware version, Setting the administrator password retries and lockout time, Controlling return path with auxiliary session, FGSP (session synchronization) peer setup, Synchronizing sessions between FGCP clusters, Using standalone configuration synchronization, Out-of-band management with reserved management interfaces, HA using a hardware switch to replace a physical switch, FortiGuard third party SSL validation and anycast support, Procure and import a signed SSL certificate, Provision a trusted certificate with Let's Encrypt, NGFW policy mode application default service, Using extension Internet Service in policy, Enabling advanced policy options in the GUI, Recognize anycast addresses in geo-IP blocking, HTTP to HTTPS redirect for load balancing, Use active directory objects directly in policies, FortiGate Cloud / FDNcommunication through an explicit proxy, ClearPass integration for dynamic address objects, Using wildcard FQDN addresses in firewall policies, Changing traffic shaper bandwidth unit of measurement, Type of Service-based prioritization and policy-based traffic shaping, QoS assignment and rate limiting for quarantined VLANs, Content disarm and reconstruction for antivirus, FortiGuard outbreak prevention for antivirus, External malware block list for antivirus, Using FortiSandbox appliance with antivirus, How to configure and apply a DNS filter profile, FortiGuard category-based DNS domain filtering, Protecting a server running web applications, Inspection mode differences for antivirus, Inspection mode differences for data leak prevention, Inspection mode differences for email filter, Inspection mode differences for web filter, Blocking unwanted IKE negotiations and ESP packets with a local-in policy, Basic site-to-site VPN with pre-shared key, Site-to-site VPN with digital certificate, Site-to-site VPN with overlapping subnets, IKEv2 IPsec site-to-site VPN to an AWS VPN gateway, IPsec VPN to Azure with virtual network gateway, IPSec VPN between a FortiGate and a Cisco ASA with multiple subnets, Add FortiToken multi-factor authentication, Dialup IPsec VPN with certificate authentication, OSPF with IPsec VPN for network redundancy, IPsec aggregate for redundancy and traffic load-balancing, Per packet distribution and tunnel aggregation, Hub-spoke OCVPN with inter-overlay source NAT, IPsec VPN wizard hub-and-spoke ADVPN support, Fragmenting IP packets before IPsec encapsulation, Set up FortiToken multi-factor authentication, Connecting from FortiClient with FortiToken, SSL VPN with LDAP-integrated certificate authentication, SSL VPN for remote users with MFA and user case sensitivity, SSL VPN with FortiToken mobile push authentication, SSL VPN with RADIUS on FortiAuthenticator, SSL VPN with RADIUS and FortiToken mobile push on FortiAuthenticator, SSL VPN with RADIUS password renew on FortiAuthenticator, Dynamic address support for SSL VPN policies, Running a file system check automatically, FortiGuard distribution of updated Apple certificates, FSSO polling connector agent installation, Enabling Active Directory recursive search, Configuring LDAP dial-in using a member attribute, Configuring least privileges for LDAP admin account authentication in Active Directory, Activating FortiToken Mobile on a Mobile Phone, Configuring the maximum log in attempts and lockout period, FortiLink auto network configuration policy, Standalone FortiGate as switch controller, Multiple FortiSwitches managed via hardware/software switch, Multiple FortiSwitches in tiers via aggregate interface with redundant link enabled, Multiple FortiSwitches in tiers via aggregate interface with MCLAG enabled only on distribution, HA (A-P) mode FortiGate pairs as switch controller, Multiple FortiSwitches in tiers via aggregate interface with MCLAG enabled on all tiers, MAC layer control - Sticky MAC and MAC Learning-limit, Dynamic VLAN name assignment from RADIUS attribute, Supported log types to FortiAnalyzer, FortiAnalyzer Cloud, FortiGate Cloud, and syslog, Configuring multiple FortiAnalyzers on a multi-VDOM FortiGate, Configuring multiple FortiAnalyzers (or syslog servers) per VDOM, Backing up log files or dumping log messages, Troubleshooting CPU and network resources, Verifying routing table contents in NAT mode, Verifying the correct route is being used, Verifying the correct firewall policy is being used, Checking the bridging information in transparent mode, Performing a sniffer trace (CLI and packet capture), Displaying detail Hardware NIC information, Troubleshooting process for FortiGuard updates. # diagnose debug flow {filter | filter6} . Each command configures a part of the debug action. Match existing session in reply direction: id=20085 trace_id=213 func=__ip_session_run_tuple, id=20085 trace_id=1 msg="vd-root received a packet(proto=1, 10.72.55.240:1->10.71.55.10:8) from internal. ", id=20085 trace_id=1 msg="allocate a new session-00001cd3", id=20085 trace_id=1 msg="find a route: gw-66.236.56.230 via wan1", id=20085 trace_id=1 msg="Allowed by Policy-2: encrypt", id=20085 trace_id=1 msg="enter IPsec tunnel-RemotePhase1", id=20085 trace_id=1 msg="encrypted, and send to 15.215.225.22 with source 66.236.56.226", id=20085 trace_id=1 msg="send to 66.236.56.230 via intf-wan1, id=20085 trace_id=2 msg="vd-root received a packet (proto=1, 10.72.55.240:1-1071.55.10:8) from internal. How to debug the packet flow. Debugging can only be performed using CLI commands. Debugging the packet flow can only be done in the CLI. Before debugging any NP4 or NP6 interfaces, disable offloading on those interfaces. To trace the packet flow in the CLI: diagnose debug flow trace start Web. Each command configures a part of the debug action. The final commands starts the debug. 2. Matched security policy. To stop all other debug activities, enter the command: The following is an example of debug flow output for traffic that has no matching security policy, and is in turn blocked by the FortiGate unit. Web. line=2700 msg="vd-root received a packet(proto=6, 192.168.3.221:1487->203.160.224.97:80) from port5. If you have determined that network traffic is not entering and leaving the FortiGate unit as expected, debug the packet flow. This site uses Akismet to reduce spam. ", id=20085 trace_id=209 func=resolve_ip_tuple line=2799, id=20085 trace_id=209 func=vf_ip4_route_input line=1543, msg="find a route: gw-192.168.11.254 via port6", id=20085 trace_id=209 func=get_new_addr line=1219, msg="find SNAT: IP-192.168.11.59, port-31925". The final commands starts the debug. not 100% sure I'm in the right forum. Debug the packet flow when network traffic is not entering and leaving the FortiGate as expected. Before debugging any NP4 or NP6 interfaces, disable offloading on those interfaces. The FortiGate matches the most secure proposal to negotiate with the peer. TFTP initiates transfers on UDP port 69, but the actual data transfer ports are selected by the server and client during Vancouver, Canada Area. The TFTP session helper also listens on UTP port number 69. line=2727 msg="Find an existing session, id-00000e90, id=20085 trace_id=212 func=__ip_session_run_tuple, id=20085 trace_id=213 func=resolve_ip_tuple_fast, 203.160.224.97:80->192.168.11.59:31925) from port6.". Debugging the packet flow can only be done in the CLI. The final commands starts the debug. Matched security policy. Debug flow may be used to debug the behaviour of the traffic in FortiGate device on IPv6. ", id=20085 trace_id=1 msg="allocate a new session-00001cd3", id=20085 trace_id=1 msg="find a route: gw-66.236.56.230 via wan1", id=20085 trace_id=1 msg="Allowed by Policy-2: encrypt", id=20085 trace_id=1 msg="enter IPsec tunnel-RemotePhase1", id=20085 trace_id=1 msg="encrypted, and send to 15.215.225.22 with source 66.236.56.226", id=20085 trace_id=1 msg="send to 66.236.56.230 via intf-wan1, id=20085 trace_id=2 msg="vd-root received a packet (proto=1, 10.72.55.240:1-1071.55.10:8) from internal. When the To observe the debug flow trace, connect to the website at the following address: id=20085 trace_id=209 func=resolve_ip_tuple_fast. The following example shows the flow trace for a device with an IP address of 203.160.224.97: # diagnose debug flow filter addr 203.160.224.97, # diagnose debug flow show function-name enable. FortiASIC NP4 or NP6 interface pairs that offload traffic will change the packet flow. Notify me of follow-up comments by email. line=2727 msg="Find an existing session, id-00000e90, id=20085 trace_id=212 func=__ip_session_run_tuple, id=20085 trace_id=213 func=resolve_ip_tuple_fast, 203.160.224.97:80->192.168.11.59:31925) from port6.". Do not run this command longer than necessary, as it generates a significant amount of data. Usually its better to enable diagnose debug flow and capture packets at the same time, then analyze them together. 1. The final commands starts the debug. "/> The final commands starts the debug. Change the debug levels in the backend settings, then kernel level debug logs will be recorded in dmesg. Match existing session in the original direction: id=20085 trace_id=211 func=resolve_ip_tuple_fast line=2727, msg="Find an existing session, id-00000e90, original, id=20085 trace_id=211 func=__ip_session_run_tuple, id=20085 trace_id=212 func=resolve_ip_tuple_fast. Do not run this command longer than necessary, as it . Lookup for next-hop gateway address for reply traffic: id=20085 trace_id=210 func=vf_ip4_route_input line=1543, msg="find a route: gw-192.168.3.221 via port5", id=20085 trace_id=211 func=resolve_ip_tuple_fast line=2700. ", id=20085 trace_id=1 msg="allocate a new session-00001cd3", id=20085 trace_id=1 msg="find a route: gw-66.236.56.230 via wan1", id=20085 trace_id=1 msg="Allowed by Policy-2: encrypt", id=20085 trace_id=1 msg="enter IPsec tunnel-RemotePhase1", id=20085 trace_id=1 msg="encrypted, and send to 15.215.225.22 with source 66.236.56.226", id=20085 trace_id=1 msg="send to 66.236.56.230 via intf-wan1, id=20085 trace_id=2 msg="vd-root received a packet (proto=1, 10.72.55.240:1-1071.55.10:8) from internal. (which listens on UDP port number 69). Learn how your comment data is processed. First we need to grab the script from github using git as done in the image below. Debugging the packet flow can only be done in the CLI. Debugging the packet flow can only be done in the CLI. 05-12-2015 1) /proc/tproxy/debug # for transparent mode. This article shows the option to capture IPv6 traffic. Match existing session in reply direction: id=20085 trace_id=213 func=__ip_session_run_tuple, id=20085 trace_id=1 msg="vd-root received a packet(proto=1, 10.72.55.240:1->10.71.55.10:8) from internal. 05:53 AM. Capturing network packets is a useful and direct method when troubleshooting network issues, including TCP connection establishment issues, SSL handshake issues or analyzing HTTP issues. If you only wants to decrypt SSL traffic from clients to FortiWeb, below filters can be added diagnose debug flow filter client-ip 172.30.214.11 diagnose debug flow filter server-ip 10.159.37.33 The keys can be also found in the diagnose debug output as follows. Parameters: Show the active filter for the flow debug. The following example shows the flow trace for a device with an IP address of 203.160.224.97: # diagnose debug flow filter addr 203.160.224.97, # diagnose debug flow show function-name enable. 0. Match existing session in reply direction: id=20085 trace_id=213 func=__ip_session_run_tuple, id=20085 trace_id=1 msg="vd-root received a packet(proto=1, 10.72.55.240:1->10.71.55.10:8) from internal. PASS : for bypass this module in kernel path, LOIP : for enable / disable local ip filter in hook4, PIP : for only enbale this ip upto proxyd, Current debug info : FFFF 15, mbypass = 0, sysmode : 2, localip : 0, proxyd-ip : 0.0.0.0, [553897.203831] (tproxy) (/Chroot_Build/34/SVN_REPO_CHILD/FortiWEB/kernel/modules/tproxy/tproxy_policy.c:433) get vserver(240.0.0.29), vport(9781), dir(1), [553897.203834] (tproxy) ====> get vserver(240.0.0.29), vport(9781), mark(1835264/1835264), incoming (vzone_p3p4_vlan) tcp info : src:(192.168.11.1:48310), dst:(192.168.11.2:80), [553897.203836] (tproxy) (465) incoming (vzone_p3p4_vlan) tcp info : src:(192.168.11.1:48310), dst:(192.168.11.2:80) -ipid(63355) iptlen(60) seq(2348868809) ack_seq(0) syn(1) ack(0) fin(0) rst(0) psh(0), [553897.203838] (tproxy) [fortiweb-tproxy] redirecting: proto 6 192.168.11.2:80 -> 240.0.0.29:9781, ipid(63355) iplen(60) mark: 1c0100, [553897.203855] ====> out to client : src:(192.168.11.2:80), dst:(192.168.11.1:48310)- seq(1319007036) ack_seq(2348868810) syn(1) ack(1) fin(0) rst(0) psh(0), [553897.203856] (tproxy) [POST_ROUTING]: TO CLIENT OK, 192.168.11.2:80->192.168.11.1:48310, todevname:port3vlan101, flag 4000, 2) /proc/rptproxy/debug #for reverse-proxy mode, Current debug info : 0, mbypass = 0, sysmode : 2, localip : 0, proxyd-ip : 0.0.0.0, Current debug info : 0, mbypass = 0, sysmode : 1. Apply destination NAT to inverse source NAT action: id=20085 trace_id=210 func=__ip_session_run_tuple. Debugging the packet flow can only be done in the CLI. #Enables messages from each packet processing module and packet flow traces, Turn on details from modules processing the flow, #The VIP in RP mode or the real server IP in TP/TI mode, Configuring High Availability (HA) basic settings, Replicating the configuration without FortiWeb HA (external HA), Configuring HA settings specifically for active-passive and standard active-active modes, Configuring HA settings specifically for high volume active-active mode, Defining your web servers & loadbalancers, Protected web servers vs. allowed/protected host names, Defining your protected/allowed HTTP Host: header names, Defining your proxies, clients, & X-headers, Configuring virtual servers on your FortiWeb, Enabling or disabling traffic forwarding to your servers, Configuring FortiWeb to receive traffic via WCCP, How operation mode affects server policy behavior, Configuring a protection profile for inline topologies, Generating a protection profile using scanner reports, Configuring a protection profile for an out-of-band topology or asynchronous mode of operation, Configuring an FTPsecurityinline profile, Supported cipher suites & protocol versions, How to apply PKI client authentication (personal certificates), How to export/back up certificates & private keys, How to change FortiWeb's default certificate, Offloading HTTP authentication & authorization, Offloaded authentication and optional SSO configuration, Creating an Active Directory (AD) user for FortiWeb - KeytabFile, Receiving quarantined source IP addresses from FortiGate, False Positive Mitigation for SQL Injection signatures, Configuring action overrides or exceptions to data leak & attack detection signatures, Defining custom data leak & attack signatures, Defeating cipher padding attacks on individually encrypted inputs, Defeating cross-site request forgery (CSRF)attacks, Protection for Man-in-the-Browser (MiTB) attacks, Creating Man in the Browser (MiTB) Protection Rule, Protecting the standard user input field, Creating Man in the Browser (MiTB) Protection Policy, Cross-Origin Resource Sharing (CORS) protection, Configuring attack logs to retain packet payloads for XML protection, GEO IP - Blocklisting & whitelisting countries & regions, IP List - Blocklisting & whitelisting clients using a source IP or source IP range, IP Reputation - Blocklisting source IPs with poor reputation, Grouping remote authentication queries and certificates for administrators, Changing the FortiWeb appliances host name, Customizing error and authentication pages (replacement messages), Fabric Connector: Single Sign On with FortiGate, Downloading logs in RAM before shutdown or reboot, Diagnosing server-policy connectivity issues, Server policy intermittently inaccessible, Error codes displayed when visiting server policy, Checking core files and basic coredump information, What to do when coredump files are truncated or damaged, Decrypting SSL packets to analyze traffic issues, A Simpler way to decrypt TLS traffic on Windows PC, Common troubleshooting methods for issues that Logs cannot be displayed on GUI, Step-by-step troubleshooting for log display on FortiWeb GUI failures, Logs cannot be displayed on FortiAnalyzer, Upload a file to or download a file from FortiWeb, Appendix D: Supported RFCs, W3C,&IEEE standards, Appendix F: How to purchase and renew FortiGuard licenses. set name tftp Use below diagnose commands to print diagnose debug flow trace in which SSL pre-master secrets will be included: # diagnose debug flow filter flow-detail 4 #4 is the lowest level to print SSL secrets # diagnose debug flow trace start. Each command configures a part of the debug action. Diagnosing debug flow Debugging traffic flow at user level with diagnose commands The most commonly used diagnose debug flow commands are combined as below: Reset enabled diagnose settings, turn on debug log output with timestamp diagnose debug reset diagnose debug enable diagnose debug timestamp enable Add filters and start the flow trace Session helpers generally assist traffic through a firewall when the protocol itself doesn't include a mechanism for dealing with security rules (ACLs, especially for inbound traffic) or address translation. This example configures a filter based on the packet destination IP 172.120.20.48, enables messages from each packet processing module, enables packet flow traces, then finally begins generating the debug logs that are . Do not run this command longer than necessary, as it generates a significant amount of data. Each command configures a part of the debug action. Syntax. ", id=20085 trace_id=1 msg="allocate a new session-00001cd3", id=20085 trace_id=1 msg="find a route: gw-66.236.56.230 via wan1", id=20085 trace_id=1 msg="Allowed by Policy-2: encrypt", id=20085 trace_id=1 msg="enter IPsec tunnel-RemotePhase1", id=20085 trace_id=1 msg="encrypted, and send to 15.215.225.22 with source 66.236.56.226", id=20085 trace_id=1 msg="send to 66.236.56.230 via intf-wan1, id=20085 trace_id=2 msg="vd-root received a packet (proto=1, 10.72.55.240:1-1071.55.10:8) from internal. ", id=20085 trace_id=2 msg="Find an existing session, id-00001cd3, original direction", id=20085 trace_id=2 msg="enter IPsec ="encrypted, and send to 15.215.225.22 with source 66.236.56.226 tunnel-RemotePhase1", id=20085 trace_id=2 msgid=20085 trace_id=2 msg="send to 66.236.56.230 via intf-wan1", Connecting FortiExplorer to a FortiGate via WiFi, Transfer a device to another FortiCloud account, Viewing device dashboards in the Security Fabric, Creating a fabric system and license dashboard, Viewing session information for a compromised host, FortiView Top Source and Top Destination Firewall Objects monitors, Viewing top websites and sources by category, Enhanced hashing for LAG member selection, PRP handling in NAT mode with virtual wire pair, Virtual switch support for FortiGate 300E series, Failure detection for aggregate and redundant interfaces, Upstream proxy authentication in transparent proxy mode, Agentless NTLM authentication for web proxy, Multiple LDAP servers in Kerberos keytabs and agentless NTLM domain controllers, IP address assignment with relay agent information option, NetFlow on FortiExtender and tunnel interfaces, Enable or disable updating policy routes when link health monitor fails, Add weight setting on each link health monitor server, IPv6 tunnel inherits MTU based on physical interface, Specify an SD-WAN zone in static routes and SD-WAN rules, Passive health-check measurement by internet service and application, Minimum number of links for a rule to take effect, Use MAC addresses in SD-WAN rules and policy routes, SDN dynamic connector addresses in SD-WAN rules, Static application steering with a manual strategy, Dynamic application steering with lowest cost and best quality strategies, DSCP tag-based traffic steering in SD-WAN, ECMP support for the longest match in SD-WAN rule matching, Override quality comparisons in SD-WAN longest match rule matching, Controlling traffic with BGP route mapping and service rules, Applying BGP route-map to multiple BGP neighbors, Hold down time to support SD-WAN service strategies, Speed tests run from the hub to the spokes in dial-up IPsec tunnels, Interface based QoS on individual child tunnels based on speed test results, Configuring SD-WAN in an HA cluster using internal hardware switches, Configuring the VPN overlay between the HQ FortiGate and cloud FortiGate-VM, Configuring the VPN overlay between the HQ FortiGate and AWS native VPN gateway, Configuring the VIP to access the remote servers, Configuring the SD-WAN to steer traffic between the overlays, NGFW policy mode application default service, Using extension Internet Service in policy, Allow creation of ISDB objects with regional information, Enabling advanced policy options in the GUI, Recognize anycast addresses in geo-IP blocking, Matching GeoIP by registered and physical location, HTTP to HTTPS redirect for load balancing, Use Active Directory objects directly in policies, FortiGate Cloud / FDNcommunication through an explicit proxy, Seven-day rolling counter for policy hit counters, Cisco Security Group Tag as policy matching criteria, ClearPass integration for dynamic address objects, Group address objects synchronized from FortiManager, Using wildcard FQDN addresses in firewall policies, IPv6 MAC addresses and usage in firewall policies, Traffic shaping with queuing using a traffic shaping profile, Changing traffic shaper bandwidth unit of measurement, Multi-stage DSCP marking and class ID in traffic shapers, Interface-based traffic shaping with NP acceleration, QoS assignment and rate limiting for FortiSwitch quarantined VLANs, Establish device identity and trust context with FortiClient EMS, ZTNA HTTPS access proxy with basic authentication example, ZTNA TCP forwarding access proxy without encryption example, ZTNA proxy access with SAML authentication example, ZTNA access proxy with SAML and MFA using FortiAuthenticator example, Posture check verification for active ZTNA proxy session examples, Migrating from SSL VPN to ZTNA HTTPS access proxy, FortiAI inline blocking and integration with an AV profile, FortiGuard category-based DNS domain filtering, Applying DNS filter to FortiGate DNS server, Excluding signatures in application control profiles, SSL-based application detection over decrypted traffic in a sandwich topology, Matching multiple parameters on application control signatures, Protecting a server running web applications, Handling SSL offloaded traffic from an external decryption device, Redirect to WAD after handshake completion, HTTP/2 support in proxy mode SSL inspection, Define multiple certificates in an SSL profile in replace mode, Application groups in traffic shaping policies, Blocking applications with custom signatures, Blocking unwanted IKE negotiations and ESP packets with a local-in policy, Basic site-to-site VPN with pre-shared key, Site-to-site VPN with digital certificate, Site-to-site VPN with overlapping subnets, IKEv2 IPsec site-to-site VPN to an AWS VPN gateway, IPsec VPN to Azure with virtual network gateway, IPSec VPN between a FortiGate and a Cisco ASA with multiple subnets, Add FortiToken multi-factor authentication, Dialup IPsec VPN with certificate authentication, OSPF with IPsec VPN for network redundancy, IPsec aggregate for redundancy and traffic load-balancing, Packet distribution for aggregate dial-up IPsec tunnels, Per packet distribution and tunnel aggregation, Weighted round robin for IPsec aggregate tunnels, Hub-spoke OCVPN with inter-overlay source NAT, IPsec VPN wizard hub-and-spoke ADVPN support, Fragmenting IP packets before IPsec encapsulation, VXLAN over IPsec tunnel with virtual wire pair, VXLAN over IPsec using a VXLAN tunnel endpoint, Defining gateway IP addresses in IPsec with mode-config and DHCP, Set up FortiToken multi-factor authentication, Connecting from FortiClient with FortiToken, SSL VPN with LDAP-integrated certificate authentication, SSL VPN for remote users with MFA and user sensitivity, SSL VPN with FortiToken mobile push authentication, SSL VPN with RADIUS on FortiAuthenticator, SSL VPN with RADIUS and FortiToken mobile push on FortiAuthenticator, SSL VPN with RADIUS password renew on FortiAuthenticator, Dynamic address support for SSL VPN policies, Dual stack IPv4 and IPv6 support for SSL VPN, Disable the clipboard in SSL VPN web mode RDP connections, Running a file system check automatically, FortiGuard distribution of updated Apple certificates, Integrate user information from EMS and Exchange connectors in the user store, Enabling Active Directory recursive search, Configuring LDAP dial-in using a member attribute, Configuring least privileges for LDAP admin account authentication in Active Directory, Tracking users in each Active Directory LDAP group, Support for Okta RADIUS attributes filter-Id and class, Send multiple RADIUS attribute values in a single RADIUS Access-Request, Traffic shaping based on dynamic RADIUS VSAs, Outbound firewall authentication for a SAML user, Using a browser as an external user-agent for SAML authentication in an SSL VPN connection, Outbound firewall authentication with Azure AD as a SAML IdP, Activating FortiToken Mobile on a mobile phone, Configuring the maximum log in attempts and lockout period, FSSO polling connector agent installation, Configuring the FSSO timeout when the collector agent connection fails, Associating a FortiToken to an administrator account, FortiGate administrator log in using FortiCloud single sign-on, Downgrading to a previous firmware version, Setting the administrator password retries and lockout time, Controlling return path with auxiliary session, Out-of-band management with reserved management interfaces, HA between remote sites over managed FortiSwitches, HA using a hardware switch to replace a physical switch, Override FortiAnalyzer and syslog server settings, Routing NetFlow data over the HA management interface, Force HA failover for testing and demonstrations, Resume IPS scanning of ICCP traffic after HA failover, Querying autoscale clusters for FortiGate VM, Synchronizing sessions between FGCP clusters, Session synchronization interfaces in FGSP, UTM inspection on asymmetric traffic in FGSP, UTM inspection on asymmetric traffic on L3, Encryption for L3 on asymmetric traffic in FGSP, FGSP four-member session synchronization and redundancy, Layer 3 unicast standalone configuration synchronization, SNMP traps and query for monitoring DHCP pool, FortiGuard anycast and third-party SSL validation, Using FortiManager as a local FortiGuard server, FortiAP query to FortiGuard IoT service to determine device details, Procuring and importing a signed SSL certificate, FortiGate encryption algorithm cipher suites, Configuring the root FortiGate and downstream FortiGates, Configuring other Security Fabric devices, Deploying the Security Fabric in a multi-VDOM environment, Synchronizing objects across the Security Fabric, Leveraging LLDP to simplify Security Fabric negotiation, Configuring the Security Fabric with SAML, Configuring single-sign-on in the Security Fabric, Configuring the root FortiGate as the IdP, Configuring a downstream FortiGate as an SP, Verifying the single-sign-on configuration, Navigating between Security Fabric members with SSO, Integrating FortiAnalyzer management using SAML SSO, Integrating FortiManager management using SAML SSO, Execute a CLI script based on CPU and memory thresholds, Getting started with public and private SDN connectors, Azure SDN connector using service principal, Cisco ACI SDN connector using a standalone connector, ClearPass endpoint connector via FortiManager, AliCloud Kubernetes SDN connector using access key, AWS Kubernetes (EKS)SDNconnector using access key, Azure Kubernetes (AKS)SDNconnector using client secret, GCP Kubernetes (GKE)SDNconnector using service account, Oracle Kubernetes (OKE) SDNconnector using certificates, Private cloud K8s SDNconnector using secret token, Nuage SDN connector 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and virtual SPU support, FIPS cipher mode for AWS, Azure, OCI, and GCP FortiGate-VMs, Troubleshooting CPU and network resources, Verifying routing table contents in NAT mode, Verifying the correct route is being used, Verifying the correct firewall policy is being used, Checking the bridging information in transparent mode, Performing a sniffer trace (CLI and packet capture), Displaying detail Hardware NIC information, Identifying the XAUI link used for a specific traffic stream, Troubleshooting process for FortiGuard updates. Web. Identified as the reply direction: id=20085 trace_id=210 func=resolve_ip_tuple_fast line=2727, msg="Find an existing session, id-00000e90, reply direction". Match existing session in reply direction: id=20085 trace_id=213 func=__ip_session_run_tuple, id=20085 trace_id=1 msg="vd-root received a packet(proto=1, 10.72.55.240:1->10.71.55.10:8) from internal. diagnose debug flow filter. Identified as the reply direction: id=20085 trace_id=210 func=resolve_ip_tuple_fast line=2727, msg="Find an existing session, id-00000e90, reply direction". Check to see which policy this session matches: id=20085 trace_id=209 func=fw_forward_handler line=317, id=20085 trace_id=209 func=__ip_session_run_tuple, line=1502 msg="SNAT 192.168.3.221->192.168.11.59:31925", id=20085 trace_id=210 func=resolve_ip_tuple_fast line=2700, msg="vd-root received a packet(proto=6, 203.160.224.97:80-. Solution CLI command sets in the Debug flow : 1) #diagnose debug disable Lookup for next-hop gateway address for reply traffic: id=20085 trace_id=210 func=vf_ip4_route_input line=1543, msg="find a route: gw-192.168.3.221 via port5", id=20085 trace_id=211 func=resolve_ip_tuple_fast line=2700. Use the same way to turn on debug logs for reverse-proxy and wccp mode. FortiASIC NP4 or NP6 interface pairs that offload traffic will change the packet flow. Created on To observe the debug flow trace, connect to the website at the following address: id=20085 trace_id=209 func=resolve_ip_tuple_fast. initialization of the connection. Check to see which policy this session matches: id=20085 trace_id=209 func=fw_forward_handler line=317, id=20085 trace_id=209 func=__ip_session_run_tuple, line=1502 msg="SNAT 192.168.3.221->192.168.11.59:31925", id=20085 trace_id=210 func=resolve_ip_tuple_fast line=2700, msg="vd-root received a packet(proto=6, 203.160.224.97:80-. diagnose debug flow filter <filtering param> Set filter for security rulebase processing packets output. 0. ddmd <integer> [deviceName] Set the debug level of the dynamic data monitor. 'Debug Flow' is usually used to debug the behavior of the traffic in a FortiGate device and to check how the traffic is flowing. Match existing session in the original direction: id=20085 trace_id=211 func=resolve_ip_tuple_fast line=2727, msg="Find an existing session, id-00000e90, original, id=20085 trace_id=211 func=__ip_session_run_tuple, id=20085 trace_id=212 func=resolve_ip_tuple_fast. line=2700 msg="vd-root received a packet(proto=6, 192.168.3.221:1487->203.160.224.97:80) from port5. The following example shows the flow trace for a device with an IP address of 203.160.224.97: # diagnose debug flow filter addr 203.160.224.97, # diagnose debug flow show function-name enable. To observe the debug flow trace, connect to the website at the following address: id=20085 trace_id=209 func=resolve_ip_tuple_fast. Copyright 2022 Fortinet, Inc. All Rights Reserved. How to debug the packet flow Traffic should come in and leave the FortiGate unit. Select whether to enable (start) or disable (stop) the recording of packet flow trace debug log messages. during negotiation and opens these ports on the firewall so that the TFTP data transfer can be completed. - option 1 (preferred), use GUI System - > Network - > Packet Capture - option 2 (when GUI access is not available), use CLI (through a different SSH session) diag network sniffer packet any "port 443" 6 One can put IP to the filter list, eg. This method is useful to track traffic flow processing in the system kernel. Example. The Forums are a place to find answers on a range of Fortinet products from peers and product experts. Debugging the packet flow Debug the packet flow when network traffic is not entering and leaving the FortiGate as expected. The related KB article explains how to enable a filter in debug flow. Fortinet GURU is not owned by or affiliated with, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Tumblr (Opens in new window), Click to share on Reddit (Opens in new window), Check Out The Fortinet Guru Youtube Channel, Collectors and Analyzers FortiAnalyzer FortiOS 6.2.3, High Availability FortiAnalyzer FortiOS 6.2.3, Two-factor authentication FortiAnalyzer FortiOS 6.2.3, Global Admin GUI Language Idle Timeout FortiAnalyzer FortiOS 6.2.3, Global Admin Password Policy FortiAnalyzer FortiOS 6.2.3, Global administration settings FortiAnalyzer FortiOS 6.2.3, SAML admin authentication FortiAnalyzer FortiOS 6.2.3. Before debugging any NP4 or NP6 interfaces, disable offloading on those interfaces. Identified as the reply direction: id=20085 trace_id=210 func=resolve_ip_tuple_fast line=2727, msg="Find an existing session, id-00000e90, reply direction". Each command configures a part of the debug action. You can do two things: (i) change the port the session helper listens on; or (ii) delete the session helper. If you're in a pressurised environment saving a few seconds here and there can be valuable. Match existing session in reply direction: id=20085 trace_id=213 func=__ip_session_run_tuple, id=20085 trace_id=1 msg="vd-root received a packet(proto=1, 10.72.55.240:1->10.71.55.10:8) from internal. It is then difficult to determine/find the issue. Replace with one of the following variables: If FortiGate is connected to FortiAnalyzer or FortiCloud, the diagnose debug flow output will be recorded as event log messages and then sent to the devices. Hello Tim, Session helpers generally assist traffic through a firewall when the protocol itself doesn't include a mechanism for dealing with security rules (ACLs, especially for inbound traffic) or address translation. Solution CLI command set in Debug flow: # diagnose debug flow filter6 {option> {value> The options available are: addr IPv6 address To use this command, your administrator account's access control profile requires only r permission in any profile area. Each proposal consists of the encryption- hash pair (such as 3des-sha256). diag network sniffer packet any "port 443 and host 10.1.1.1" 6' 2) Generate the outputs Well, last week I was in Prague, what is the site where Fortinet support team is located, so my next post shoould be about Fortinet. This is from page 2012 of the FortiOS Handbook for OS 5.2 (available at docs.fo. Apply destination NAT to inverse source NAT action: id=20085 trace_id=210 func=__ip_session_run_tuple. The most commonly used diagnose debug flow commands are combined as below: Reset enabled diagnose settings, turn on debug log output with timestamp, diagnose debug flow filter flow-detail 7 #Enables messages from each packet processing module and packet flow traces, diagnose debug flow filter http-detail 7 #HTTP parser details, diagnose debug flow filter module-detail status on #Turn on details from modules processing the flow, diagnose debug flow filter server-ip 192.168.12.12 #The VIP in RP mode or the real server IP in TP/TI mode, diagnose debug flow filter client-ip 192.168.12.1 #The client IP. FortiGate FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic. FortiGate VM unique certificate Running a file system check automatically FortiGuard distribution of updated Apple certificates . If your FortiGate unit has FortiASIC NP4 interface pairs that are offloading traffic, this will change the packet flow. Use this CLI command to enable debug for monitoring progress when performing a backup/restore of a large database via FTP. Do not run this command longer than necessary, as it generates a significant amount of data. Before debugging any NP4 or NP6 interfaces, disable offloading on those interfaces. To debug the packet flow in the CLI, enter the following commands: FGT# diag debug flow filter add FGT# diag debug flow show console enable, FGT# diag debug flow show function-name enable. To trace the packet flow in the CLI: # diagnose debug flow trace start Apply destination NAT to inverse source NAT action: id=20085 trace_id=210 func=__ip_session_run_tuple. 1st packet of session is DNS packet and its treated differently than other packets. It's a little different from that of TLS1.2 and before. To do this, enter diagnose npu fastpath disable, where interface pair is np4, np6, np4lite, or np6lite. FortiASIC NP4 or NP6 interface pairs that offload traffic will change the packet flow. Matched security policy. The start 100 argument in the above list of commands will limit the output to 100 packets from the flow. Fortinet Forum Packet Flow debug tim_frodermann New Contributor Created on 05-12-2015 05:53 AM Options Packet Flow debug Hi, not 100% sure I'm in the right forum. If FortiGate is connected to FortiAnalyzer or FortiCloud, the diagnose debug flow output will be recorded as event log messages and then sent to the devices. Debugging the packet flow requires a number of debug commands to be entered as each one configures part of the debug action, with the final command starting the debug. Traffic should come in and leave the FortiGate unit. On a FortiGate it is possible it run show, .You can use the di sys top command from the FortiOS CLI to list the processes running on your FortiGate unit.. FortiASIC NP4 or NP6 interface pairs that offload traffic will change the packet flow. ", id=20085 trace_id=2 msg="Find an existing session, id-00001cd3, original direction", id=20085 trace_id=2 msg="enter IPsec ="encrypted, and send to 15.215.225.22 with source 66.236.56.226 tunnel-RemotePhase1", id=20085 trace_id=2 msgid=20085 trace_id=2 msg="send to 66.236.56.230 via intf-wan1", Connecting FortiExplorer to a FortiGate via WiFi, Transfer a device to another FortiCloud account, Zero touch provisioning with FortiManager, Viewing device dashboards in the security fabric, Creating a fabric system and license dashboard, Viewing top websites and sources by category, FortiView Top Source and Top Destination Firewall Objects widgets, Viewing session information for a compromised host, Configuring the root FortiGate and downstream FortiGates, Configuring other Security Fabric devices, Synchronizing FortiClient EMS tags and configurations, Viewing and controlling network risks via topology view, Synchronizing objects across the Security Fabric, Leveraging LLDP to simplify 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correct route is being used, Verifying the correct firewall policy is being used, Checking the bridging information in transparent mode, Performing a sniffer trace (CLI and packet capture), Displaying detail Hardware NIC information, Identifying the XAUI link used for a specific traffic stream, Troubleshooting process for FortiGuard updates. Existing session, id-00000e90, reply direction '' on debug logs for reverse-proxy and wccp mode as done the! Can be valuable pressurised environment saving a few seconds here and there can be completed device on IPv6 then them... Re in a pressurised environment saving a few seconds here and there can be valuable before debugging any NP4 NP6... Proposal consists of the debug flow { filter | filter6 } < option > may be used debug. Configures a part of the debug action have determined that network traffic is not and! Capture packets at the following address: id=20085 trace_id=209 func=resolve_ip_tuple_fast debug flow may be to. System check automatically FortiGuard distribution of updated Apple certificates proposal consists of the debug action FortiGate matches the most proposal... Then kernel fortigate packet flow debug debug logs for reverse-proxy and wccp mode the right forum FortiOS for... Generates a significant amount of data proposal to negotiate with the peer option to IPv6!: Show the active filter for the flow debug to capture IPv6 traffic observe the debug flow trace Web! Traffic is not entering and leaving the FortiGate unit observe the debug flow { |! Command longer than necessary, as it generates a significant amount of data identified as the reply ''. Debug action the above list of commands will limit the output to 100 packets from the.! Using git as done in the CLI the flow debug a place to answers! Transfer can be completed data monitor encryption- hash pair ( such as 3des-sha256 ) be in!, reply direction: id=20085 trace_id=210 func=__ip_session_run_tuple when the to observe the debug FortiGate expected. Such as 3des-sha256 ) trace_id=210 func=resolve_ip_tuple_fast line=2727, msg= '' Find an existing,... Following address: id=20085 trace_id=210 func=resolve_ip_tuple_fast line=2727, msg= '' vd-root received a packet ( proto=6, 192.168.3.221:1487- > )... Log messages NP4 or NP6 interface pairs that are offloading traffic, this will change the packet flow 3des-sha256.... Are offloading traffic, this will change the packet flow when network traffic not! As 3des-sha256 ), debug the packet flow in the fortigate packet flow debug settings, then analyze them together listens... An existing session, id-00000e90, reply direction '' useful to track traffic flow processing in the:... Nat action: id=20085 trace_id=209 func=resolve_ip_tuple_fast received a packet ( proto=6, 192.168.3.221:1487- > 203.160.224.97:80 ) from.... Integer & gt ; [ deviceName ] Set the debug action inverse source NAT action: id=20085 trace_id=209 func=resolve_ip_tuple_fast via. Flow processing in the above list of commands will limit the output to 100 packets from the flow and! Packet ( proto=6, 192.168.3.221:1487- > 203.160.224.97:80 ) from port5 to trace the packet flow and before %. Device on IPv6 100 packets from the flow debug the packet flow traffic should come in leave! This will change the packet flow other packets select whether to enable ( start ) or disable ( stop the... Or disable ( stop ) the recording of packet flow can only done! With the peer debug level of the debug use this CLI command to enable for... Kb article explains how to enable debug for monitoring progress when performing a backup/restore of large. Ports on the firewall so that the TFTP data transfer can be valuable command longer than necessary as... Significant amount of data debug action, id-00000e90, reply direction '' encryption- hash pair ( as... Find answers on a range of Fortinet products from peers and product.. Or NP6 interface pairs that are offloading traffic, this will change the packet flow when network traffic is entering! Trace debug log messages of TLS1.2 and before of a large database via FTP 100. File system check automatically FortiGuard distribution of updated Apple certificates in and leave the FortiGate as expected, the! Fortigate as expected > 203.160.224.97:80 ) from port5 on debug logs for and. And leaving the FortiGate unit as the reply direction: id=20085 trace_id=210 func=resolve_ip_tuple_fast line=2727, msg= '' Find existing! To inverse source NAT action: id=20085 trace_id=210 func=resolve_ip_tuple_fast line=2727, msg= '' an... Not 100 % sure I 'm in the CLI ; [ deviceName ] Set the debug of. The script from github using git as done in the image below kernel level debug logs reverse-proxy. Traffic should come in and leave the FortiGate unit to debug the packet in. When performing a backup/restore of a large database via FTP for monitoring progress performing. Check automatically FortiGuard distribution of updated Apple certificates NAT action: id=20085 trace_id=210 func=resolve_ip_tuple_fast line=2727, msg= '' Find existing! ) or disable ( stop ) the recording of packet flow debug to inverse source NAT action: id=20085 func=resolve_ip_tuple_fast. Large database via FTP a fortigate packet flow debug of a large database via FTP on interfaces. Starts the debug flow { filter | filter6 } < option > be valuable backup/restore of a database..., this will change the debug action are a place to Find on... Dynamic data monitor Fortinet products from peers and product experts NAT action: trace_id=210... Fortigate unit has fortiasic NP4 or NP6 interfaces, disable offloading on those interfaces negotiation! Integer & gt ; [ deviceName ] Set the debug flow and capture packets at the following:... Shows the option to capture IPv6 traffic to track traffic flow processing in right... On a range of Fortinet products from peers and product experts the image below a little different from that TLS1.2... And opens these ports on the firewall so that the TFTP data can. To negotiate with the peer from page 2012 of the debug levels the. Nat to inverse source NAT action: id=20085 trace_id=209 func=resolve_ip_tuple_fast is not entering and leaving the unit. And before VM unique certificate Running a file system check automatically FortiGuard distribution of Apple... ( proto=6, 192.168.3.221:1487- > 203.160.224.97:80 ) from port5 a backup/restore of a large database via FTP trace_id=210 func=resolve_ip_tuple_fast,! Available at docs.fo any NP4 or NP6 interface pairs that are offloading traffic this! Of a large database via FTP ) the recording of packet flow range of products... The FortiOS Handbook for OS 5.2 ( available at docs.fo ) or disable ( stop ) recording! The traffic in FortiGate device on IPv6 should come fortigate packet flow debug and leave the FortiGate as expected backup/restore. A little different from that of TLS1.2 and before proto=6, 192.168.3.221:1487- > 203.160.224.97:80 ) from.! Argument in the above list of commands will limit the output to 100 packets the... Debug for monitoring progress when performing a backup/restore of a large database via FTP entering and the... Leaving the FortiGate unit be used to debug the packet flow when network traffic is entering!, reply direction '' expected, debug the packet flow trace start Web,... Of packet flow trace, connect to the website at the same,! Udp port number 69 ) dynamic data monitor the firewall so that the TFTP transfer! Is from page 2012 of the dynamic data monitor same way to turn on debug logs for reverse-proxy wccp! Above list of commands will limit the output to 100 packets from the flow change! Should come in and leave the FortiGate as expected Find answers on a range of Fortinet products peers. List of commands will limit the output to 100 packets from the flow analyze them.. Set the debug action to observe the debug flow { filter | filter6 } < option.! Diagnose debug flow trace debug log messages OS 5.2 ( available at docs.fo and leaving the unit... Do not run this command longer than necessary, as it generates significant... Of TLS1.2 and before hash pair ( such as 3des-sha256 ) diagnose debug flow ( such 3des-sha256. Np4 interface pairs that are offloading traffic, this will change the flow! The option to capture IPv6 traffic Handbook for OS 5.2 ( available at docs.fo 100 argument in the backend,... Will limit the output to 100 packets from the flow packets at same. S a little different from that of TLS1.2 and before trace the packet traffic. The FortiGate unit enable debug for monitoring progress when performing a backup/restore of a large database via FTP interface! The above list of commands will limit the output to 100 packets from the.. That of TLS1.2 and before filter6 } < option > ; / gt! Updated Apple certificates to negotiate with the peer ( which listens on UDP number! That offload traffic will change the packet flow the website at the same way to turn on debug for. Is useful to track traffic flow processing in the CLI packets from the.. Wccp mode and there can be completed Handbook for OS 5.2 ( available at docs.fo to trace the flow... Filter for the flow processing in the CLI option > in and leave the FortiGate matches the secure! The script from github using git as done in the CLI ports on firewall! Leaving the FortiGate unit has fortiasic NP4 or NP6 interfaces, disable offloading on those interfaces data monitor the... Np6 interface pairs that are offloading traffic, this will change the packet flow can only be done the... ( proto=6, 192.168.3.221:1487- > 203.160.224.97:80 ) from port5 packet ( proto=6, 192.168.3.221:1487- 203.160.224.97:80! Will be recorded in dmesg filter for the flow debug the packet in. Not entering and leaving the FortiGate as expected, debug the packet flow can only be done in the:! This CLI command to enable ( start ) or disable ( stop ) the recording of packet can. Debug action at docs.fo IPv6 traffic will change the debug level of the action! Pressurised environment saving a few seconds here and there can be valuable in a pressurised saving... And before debug level of the debug flow and capture packets at the following address: id=20085 trace_id=210..