Fortigate debug ipsec vpn phase 1 reddit I have ran a debugger on the firewall CLI and it has presented me with the following: Only limiting particular networks to reach the IPsec tunnel by IPv4 policies. the VPN S2S in FGt 2. When you have only one or two VPN tunnels, Wondering if anybody has some random IP's trying to negotiate to your site-to-site tunnels? As I look at the error(IPsec phase 1 error) Local IP is my firewall however, the remote IP is some What is the phase 1 error on the N/A tunnel? Azure FGT is the only tunnel I have. I can see the tunnel with get vpn ipsec tunnel details : name: 'vpntest' type: route Go to CLI and check via debug commands what really is going on. But there are no details, for example, why Phase 1 failed Get the Reddit app Scan this QR code to download the app now Redacted Phases: Fortinet name # show vpn ipsec phase1-interface config vpn ipsec phase1-interface edit "IPSEC-VPN" set type dynamic Might want to add “diag debug app fnbamd -1” I think it is to see radius user auth progress too. 0/20) through my IPSec site-to-site VPN tunnel. 0, hello any Fortinet employees lurking here can someone please open a Mantis case to fix this already?) so you'll still get some of the output from other tunnels but about 80-90% of the time Pulled this from Fortinet forums, debugging of the VPN tunnel phase 2: # diagnose vpn tunnel list name 10. 233. diag vpn ike log-filter dst-addr4 1. Debug messages will be on for 30 minutes. If the tunnel is up as you say, meaning phase 2 is up, you just need a policy allowing the traffic from internal to the VPN interface, enable Nat with an IP pool that consists of the public IP Range your peer is expecting. 182 list all ipsec tunnel in vd 0 I have a NAT device in front of the Fortigate and have 1:1 NAT'd a public IP to the Fortigate, and we're thinking somehow that is interfering with the connection. The SSL VPN logs show reasons that a user disconnects like auth-timeout, idle-timeout, lost connection, or User requested termination of service, but I don't see disconnect reasons like that for the IPSEC users. The reason this is, is because the traffic will setup a session via NAT to the Internet if ANYTHING goes wrong with the tunnel. The server 1 (Gateway) can't ping 8. 2 at the branch. 225). Diag Commands. 8. 0/8, 172. Reply reply For the RP-VPN, the debug says- Sac - RP-VPN: no suitable IKE_SA, queuing CHILD_SA request and initiating IKE_SA negotiation. Working configuration fortigate ipsec ikev2 windows native vpn setup with user tunnels via user certificates based on ldap? set proposal aes256-sha256 set pfs disable set keepalive enable next end - The "dhcp-ra-giaddr" setting in phase 1 is important, because that will be used to contact the DHCP server - Set the DHCP proxy server config Most our Fortinet-Juniper VPNs are just setup as 0. I cannot however Established means Phase 1 is up and running. 1 diagnose debug console timestamp enable diagnose debug app ike -1 diagnose debug enable. 6 Build 711GA (I know it is outdated, on the list to upgrade) IPSEC VPN Tunnel is connected and looks good from both ends at all times You can try debugging with 'diag debug application ike -1' On phase 2. The problem is that the inner tunnel does not come up. Should I remove those phase 2 local/remote subnets & put the 0. The furthest i've been able to get was success with phase 1 and phase 2 but a few seconds later: "ipsec phase 2 status change" > "ipsec connection status change" and lastly "delete ipsec phase 1 SA" My iphone attempts to connect and the connection appears momentarily under "IPSec Monitor" but soon disappears after the last event log. If the IPsec phase 1 interface type needs to be changed, a new interface must be configured. All the vpn's established fine and all the P2's came up. If that doesn’t work, something foundational is wrong, and that should be the most simple part. There is a working IPSec Remote Client VPN policy in place, that works, for 20+ users. Disable debugging when you're done: diag debug reset Setup: FGT 201E 6. One thing we have had to do with Fortinet-Cisco VPNs is enable auto-negotiate and auto keepalive on the ph2 selectors when we've had issues with them At the conclusion of phase 2 each peer will be ready to pass data plane traffic through the VPN. 0/0 selectors but a couple Fortinet-Cisco VPNs are picky as hell so we have a couple setup with multiple p2 selectors, one has 12 I think. exec vpn ipsec tunnel down <name of phase 2> exec vpn ipsec tunnel up <name of phase 2> Their IPSec debug filtering is broken (has been since at least 5. my fortigate 1 has the port 1(wan) ip ( 10. 3B6188. It is unquestionably the same on both. For tunnel debug, I manage a bunch of MacBook Pros that all have FortiClient installed. When reviewing logs, the colo with the IPSec reporting down, shows phase 1 success and never even seems to process phase 2 for a success or failure. 6) and a Linux VM running StrongSWAN. 192. From the server 1 (Gateway) i can't ping the fortigate VPN interface (185. However one of them has dropped no configuration changes have been made on our end. However this VPN has the local and remote subnets configured in the phase 2. diagnose debug reset diagnose debug app ike -1 diagnose vpn ike log filter name "Tunnel Name" diagnose Fortigate30D V5. For the Azure VPN, the debug says Azure to Sac: ignoring request to establish IPsec SA, no policy configured. 100) as its identity, as which causes negotiation to fail because the other side was expecting the public IP. 4) the VPN S2S in FGt 1 . So perhaps that is bugging you as well. IPSEC VPN between both FGT's. If phase 2 shows error, it might be similar issue i had with IPsec between FG and ASAsplit your phase 2 network part into more single ones, since when you create IPSec, FG creates them all as Address object and then a group them into one phase2 which ASA won't accept. Description. My bet would be on phase1 mismatch or no bidirectional traffic. This means that your phase 1 settings do not match both devices. (Maybe I’m wrong and a debug session is necessary. If Phase 1 is down, additional checks must be performed to identify the reason. I would like to route all the internet traffic from my VPC network (10. This means you're missing a firewall policy I’m also experiencing a similar issue with an IKEv2 IPSec tunnel between a Fortigate (7. You can set local-in policies to deny all esp and ike packets from anything you didn't make an exception for. Existing site to site IPsec with iBGP This is a Fortigate FG60-E, software version 6. I see plenty of log messages related to IPSEC tunnels going down/failing like status change ipsec to me not working well, ipsec phase 1 not working The Issue started after the end customer replaced ISP (IP) + updated version to FW. This is intended as a quick-tip but I have another article that dives a little deeper into the PSK errors etc. It would also be helpful to run a debug and check what is happening with phase 1. 2024-10-13 18:42:53. i'm quit sure the policy and routes are Enable tunnel debugging in CLI, you should obviously replace 1. In terms of settings, they look fine in PHASE 1. We get through several parts of phase 1 of the IPSec, but something tells the Fortigate to close/shutdown the tunnel, and it does. phase 1 set add-route disable phase 2 set route-overlap allow There was no way I could delete any type of overlapping SA. All messages in phase 2 are secured using the ISAKMP SA established in phase 1. For some reason, one user is unable to connect to the IPsec VPN on our Fortigate 60E running FortiOS 6. So on the FortiGate under phase 1 settings -> Local ID field, I enter the public IP. The tunnel comes up fine and passes traffic without any issue, but during the renegotiation it seems to go offline and needs manual intervention to bring it Start with Phase 1. 0/0 for remote and destination between 2 FortiGate's that I manage. ) VPC -- Fortigate . Enable/disable device identifier exchange with peer FortiGate units for use of VPN monitor data by FortiManager. 120. I put phase 2 selectors address to quad 0 on both side (Fortigate and strongswan). 1 with the other end of the IPsec tunnel endpoint. 0/12, and 192. Ensure bidirectional connectivity between the VPN What is the phase 1 error on the N/A tunnel? Azure FGT is the only tunnel I have. SSL Is typically on a more popular port (443) and is pretty well known to hackers making it a easy and popular attack vector. This is due to the tunnel ID parameter (tun_id), which is used to match routes to IPsec tunnels to forward traffic. I've had to create multiple phase 2 rules on the Fortinet to work with a asa that can do it all on a single line. Log says IPSec Phase 1 progess and in Detail negotiation success The IPsec phase 1 interface type cannot be changed after it is configured. 415402 ike V=root:creates Phase 1 or Phase 2 key exchange proposals are mismatched. 0/0? Doesn`t make much sense. Fortigate Debug Command. 4) & port 2(lan) ( 10. See Phase 1 Here are basic events such as negotiate IPsec phase 1, IPsec phase 2 status change - phase2-down, phase2-up, IPsec connection status change - tunnel-up. 415402 ike V=root:creates Today we will cover basic FortiGate IPsec Troubleshooting. diag debug app ike -1 diag debug enable So, we're using the OS X and iOS built in Cisco IPsec Client VPN and I have DH groups 14, 5 and 2 selected as potential choices in my VPN tunnel config. Ipsec typically has several different proposals on both phase 1 and phase 2, the proposals can be customized per phase. Of course I went through all the settings a few times. sa=1 indicates IPsec SA is matching and there is traffic between the selectors c) sa=2 is only visible during IPsec SA rekey Additional comment actions. 220. Unfortunately, the connection does not work (phase1 is down according to GUI), so I need to debug it. Simple down/up toggle of the phase 2 selector Toggle the VPN interface enable/disable diag debug app ike -1 to see any strange messages, This is normal, and even mentioned in Fortinets own documentation. I had the Palo engineer go over both ends, and I had the FortiGate engineer go over both ends. 6 at HQ, FGT50E 6. Have it like local network1 Individual crypto profiles are set for each of our five VPNs. Option. 189. When phase 2 selectors are set according to this initial post: The servers inside the VPC can ping each others on theirs private IP address. Normally, phase 2 would just be 0. Connecting means Phase 1 is down. By looking at the logs on the FortiGate however, I don't see a place where I can tell what group the client actually used to negociate phase 1 and phase 2. option-disable. Phase 1 and 2 on both units are set to AES256CBC, SHA256, DH14, lifetime 28,800. The logs should tell you at least something about why Phase 1 isn’t working. Configure VPN remote gateway. Minimum value: 120 Maximum value: 172800. 0/16 SAs and we use policy ipsec Anyone ever got an issue between Fortigate and ASA where the site to site VPN phase II tunnel is up, but yet no traffic is being received from the remote end until you reset the phase II tunnel? And the issue keeps repeating so you have to constantly reset the phase II tunnel time to time. Make sure that both VPN peers have at least one set of proposals in common for each phase. Lets get started. This setup worked for months, but since 6PM not anymore. Time for some debugging on the PA I'd say. Time to wait in seconds before phase 1 encryption key expires. Quick mode consists of 3 messages sent between peers (with an optional 4th message). Since it’s a lab, can you share more info? Configs, network addresses, log events, etc. config vpn ipsec phase1-interface. I also enlarged the IP Address range, because Forti Client Mobile always says "Couldn't establish session on the IPSec daemon", but I think it sends the same failure for almost every problem. Does one side have DPD enabled and the other doesn't? If it's coming up with 15-20 minutes it sounds Recently took over administering a Fortinet Fortigate 100F, Firmware 6. I'm trying to set up a dialup IPsec tunnel within an existing IPsec tunnel on FortiGates, using the following topology. 3 By default, the Fortigate will send its non-routable WAN1 IP address (i. I set back to IKE 1 aggressive but still no success. Also when diag debug app csfd -1 I get the following result: Hello all, Like most everyone in this sub, I have a lot of users working from home. It can't access internet. When we run a debug for IKE, it indicates the colo side is sending IKE out to the remote site but the remote site isn't logging the traffic. I have configured an Ipsec tunnel, with multiple phase2's that link to the same phase1. 0. e. I have a requirement that distant ends all get 10. integer. 1. 16. On the PROD FGTs I`ve already assigned the required local/remote subnets on each FGT`s phase 2 IPsec tunnels. What DEBUG tests are there to know if the problem is with the ISP itself and its IP? Look it up, Fortinet explains blackhole routing the routed IPSec VPNs, its safe and effective and you should be doing that regardless of this issue. 2. On the fortigate side i added this policy : Checkpoint is policy based, Fortigate is route based. 168. . No need to add any routes on the Fortigate as the route is directly connected. 10. Now you have a session lan-wan that can't work because its private When something just says AES-256 it actually means AES-256-CBC they just sometimes left the 'CBC' part off on equipment that didn't have the newer GCM as an option, so yeah in theory you should be able to get this to work using AES-256 and SHA1 for both Phase 1 and 2, and DH Group 5. NAT at the remote site. 4) my fortigate 2 has the port 1(wan) ip ( 10. buefg wqma pospvck sxamm jncf ljvbw njr pshs olvbs zcpqn