Fortigate could not locate phase1 configuration But the problem is if the pppoe is reconnect, IPv6 Address/Prefix on LAN interface will ch Learn how to set up site-to-site and remote access VPNs, optimize performance, and troubleshoot common issues like authentication failures, phase 1 & 2 mismatches, and traffic flow problems. 174. An issue we are running into is that sometimes the dynamic tunnels will close on the source spoke FortiGate yet remain active on the destination FortiGate. FGSP session synchronization between different FortiGate models or firmware versions Applying the session synchronization filter only between FGSP peers in an FGCP over FGSP topology Phase 1 configuration Phase 1 configuration primarily defines the parameters used in IKE (Internet Key Exchange) negotiation between the ends of the IPsec tunnel. To inquire about a particular bug, please contact Customer Service & Support. Hence, they are sometimes referred to Phase 1 configuration Phase 1 configuration primarily defines the parameters used in IKE (Internet Key Exchange) negotiation between the ends of the IPsec tunnel. 114. Dec 4, 2009 · the FortiOS requirement that a VPN interface name is limited to 15 characters, and some considerations for tunnels with multiple phase1 associations. Jul 15, 2025 · This article describes how to resolve an issue where FortiGate is unable to establish an IPSEC tunnel to the remote VPN gateway. I have confirmed that i am using correct/same IKE gateway, Authentication and Encryption settings on both ends. FortiGate experiences packet drop when egress-shaping-profile is applied to a LAG interface. Although the configuration appears intact via CLI, the setting is lost after a system reboot, causing potential disruption to split tunneling functionality. The tunnel comes up and traffic goes thru, until I shut down and restart FortiGate 30D. For authentication to be successful, the FortiGate unit and the remote VPN peer must be configured with compatible phase 1 settings. I have a case locked with the fortigate TAC since then, it's over 2 months of submitting logs to them and no solution has been provided at all. Solution Verify the step-by-step configuration: Check Phase1 and phase2 configuration of ADVPN: show vpn ipsec phase1- Phase 1 configuration Phase 1 configuration primarily defines the parameters used in IKE (Internet Key Exchange) negotiation between the ends of the IPsec tunnel. This choice does not apply if you use IKE version 2, which is available only for route-based configurations. We tried a failover because we have a cluster, and the VPN went UP. FortiGate IPSEC. In this example, it will show 2 tunnels: VPN_to_WQD and VPN_WQD. When the Local ID (IDi) presented during IKE Phase 1 does not match the IP registered in the WSS portal, the WSS POP will reject the connection during authentication. Phase 2 configuration After phase 1 negotiations end successfully, phase 2 begins. 4->163. FortiGate does not show additional speed options outside of auto on a WAN interface. Hence, they are sometimes referred to Nov 28, 2014 · FortiWifi 30D-POE Firmware: v5. Dec 13, 2023 · Dear everyone. Phase 1 configuration primarily defines the parameters used in IKE (Internet Key Exchange) negotiation between the ends of the IPsec tunnel. In Phase 2, the VPN peer or client and the FortiGate exchange keys again to establish a secure communication channel. This is a common practice in IPsec VPNs to refresh encryption keys or when SA lifetimes expire. Results Port3 will be used in Phase 1 configuration primarily defines the parameters used in IKE (Internet Key Exchange) negotiation between the ends of the IPsec tunnel. The local end can be an endpoint client or a FortiGate interface that initiates the IKE negotiations. I think it is relat Resolved issues The following issues have been fixed in version 7. 27 set psksecret ********** next end Phase2 confi Dec 21, 2024 · Hi tungnx59, The deletion of the Phase 1 SA is part of the rekeying process. I have configured my network to use Ipv6 as detail below, it work ok, this configure allow client pc connected to LAN interface can connect to internet using ipv6 OK with ipv6 from DHCP6 server. Apr 11, 2022 · how to use the config pppoe-interface to set up a PPPoE connection for both IPv4 and IPv6. The local end is the FortiGate interface that initiates the IKE negotiations. 2:0 ike 0:FG-Kamera: could not Nov 6, 2017 · FortiWifi 30D-POE Firmware: v5. Solution IPsec VPN Tunnel interfaces may report inc The basic phase 2 settings associate IPsec phase 2 parameters with the phase 1 configuration that specifies the remote end point of the VPN tunnel. 2:0 ike 0:FG-Kamera: could not Aug 31, 2023 · the possible reasons that the IPsec tunnel via ikev2 fails, usually, this issue happens when the third-party device is acting as a responder in the IPsec tunnel. ScopeFirmware v6. Check on the FortiGate IPSEC tunnel status. Nov 27, 2014 · I have set up a Ipsec VPN tunnel connecting a FortiWifi 30D-POE to a FortiGate 600c. Submitting logs to them is now a daily thing. After hours or even days of trying every combination and double and tripple checking the phase1 and phase2 parameters like keylife time, DH-group, etc. 0. Sep 11, 2019 · the process through which IPsec VPN is established in Phase 1 - aggressive mode with some example from Wireshark. The FortiGate unit and the remote peer or dialup client exchange Phase 1 parameters in either Main mode or Aggressive mode. 1, build618 I have set up a Ipsec VPN tunnel connecting a FortiWifi 30D-POE to a FortiGate 600c. I have set up a Ipsec VPN tunnel connecting a FortiWifi 30D-POE to a FortiGate 600c. Scope FortiGate, FortiOS v6. Solution When creating an IPsec tunnel, there is a character limit for the tunnel name on the FortiGate. Phase 1 configuration Phase 1 configuration primarily defines the parameters used in IKE (Internet Key Exchange) negotiation between the ends of the IPsec tunnel. When I run #diagnose debug application ike 255 I get the following: 01R56 # ike 0:FG-Kamera:FG-Kamera: IPsec SA connect 6 192. Useful links:Fortinet Documentation. The remote end is the remote gateway that responds and exchanges messages with the initiator. However, the diag vpn ike gateway list command usually recommended to debug phase1 problems shows no output: FortiGate-40F # diagnose vpn ike gateway list name vpntest. Aug 24, 2015 · The issue we're facing since day 1 is the tunnel works fine for the day but the next morning is down and does not come up on its own at all, until some minor change is made to the phase1 configuration on the branch side. Solution The IPsec VPN communications build up with 2-step negotiation:Phase1: Authenticates and/or encrypt the peers. In most cases, you need to configure only basic Phase 2 settings. ScopeFortiGate. Jul 14, 2017 · As it turned out the problem was not with the configuration settings but with the remote gateway type. Nov 28, 2014 · FortiWifi 30D-POE Firmware: v5. The IPsec VPN Feb 9, 2022 · how to troubleshoot IPsec VPN tunnel errors due to traffic not matching selectors. Solution In IKEv2, IKE AUTH (authentication) takes place after the SA_INIT exchange, initiator sending an AUTH message to Nov 27, 2014 · FortiWifi 30D-POE Firmware: v5. 1. IPv6 IPsec VPN This topic describes how to configure the IPv6 IPsec VPN feature on your FortiGate device. Solution When establishing IPSEC VPN site Apr 29, 2009 · IPSec Phase 1 Error Hi, I am having problem in establishing a site to site IPSEC to a third party VPN device (Zyxel DSL CPE). 2:0 ike 0:FG-Kamera: could not Sep 16, 2025 · that ADVPN (Auto Discovery VPN) with SD-WAN (Software-Defined Wide Area Networking) is a powerful solution and provides methods for FortiGate ADVPN with SD-WAN. The VPN was working fine before and suddenly it stopped working with the error: could not locate phase1 configuration We have tried restarting iked but it didn't work. Nov 26, 2024 · Hi, Try to create the VPN via CLI: Phase 1: config vpn ipsec phase1-interface edit "IPSEC" set interface "wan1" set peertype any set net-device disable set proposal aes128-sha256 aes256-sha256 aes128-sha1 aes256-sha1 set remote-gw 10. The log message confirms that the VPN tunnel’s existing SA has been removed to allow a new SA to be negotiated. The FortiGate continues to manage traffic while ensuring that the negotiation of a new SA does not interrupt Phase 1 configuration Phase 1 configuration primarily defines the parameters used in IKE (Internet Key Exchange) negotiation between the ends of the IPsec tunnel. After upgrading FortiGate and not changing any configuration details, the output of s_duplex in get hardware nic port command displays Half instead of Full. 2. 2 and above. Scope FortiGate. 9. Verifying ADVPN configuration in FortiGate When configuring the VPN manager, take into account that the final outcome you want to have on the FortiGate is shown the configurations below. This causes the forward traffic to route to the spoke’s hub FortiGate as the first hop, then to the destination FortiGate as the second hop. 10. Running debugging during the time of the issue on the branch 30D the initial out put is 21:44:34 ike 0:mandhana: could not locate phase1 configuration. . Jul 10, 2025 · This article describes an issue observed on FortiGate, where the IPv4-split-include setting in an IPsec Phase1-interface configuration disappears after modifying the associated address group. Troubleshooting Tip: Getting error 'could not locate phase1 configuration' in IPSEC (IKE) debug by tana 10-03-2024 in FortiGate 10-03-2024 Phase 1 configuration Phase 1 configuration primarily defines the parameters used in IKE (Internet Key Exchange) negotiation between the ends of the IPsec tunnel. 2:0 ike 0:FG-Kamera: could not Mar 24, 2020 · We faced the same issue with FotiOS 6. 168. i got it working by changing the remote gateway type to dial-up (on one side). This article explains how to fix a phase1 issue about 'error constructing ID payload'. Phase2 (Quick mode): Negotiates The phase 1 configuration specifies the name of a remote VPN peer, the nature of the connection (static IP, dialup, or dynamic DNS), the encryption and authentication keys for the phase 1 proposal, and the authentication method (preshared key or certificate). In Main mode, the Phase 1 parameters are exchanged in multiple rounds with encrypted authentication information Resolved issues The following issues have been fixed in version 7. Scope FortiGate. vvm jsqk 0sjk ihlw nzpmw 3vl0 ojfl jxew pktnc g0i