Ipsec tunnel established but no traffic pfsense. 254/24 Client - UDP Local: 192. Dec 11, 2019 · The tunnel is established but on the dashboard it says it's down but guessing that is a bug in pfsense? I can't ping or trace out from pfsense or VM, it doesn't receive any packets which makes me think it's not able to find a route there. Traffic is sent, but no packets are ever received. I have got the VPN established but I cant ping anything in either direction on the network. In the "IPSec Tunnels" section, it shows the VPN tunnel is up. Pfsense has the tunnel but no traffic. Updated pfsense, ipsec tunnel connected okay, no traffic Traceroutes to remote ip's stop at the firewall and the traffic graph shows no traffic. However, I cannot access any of the server located at the customer's environment. 2-RELEASE-p1. Do I need to add a route somewhere? Jun 14, 2021 · Deleting the IPSec settings on the Edgerouter and re-configure IPsec on the edgerouter followed by a reboot as it still didn't work. Jul 26, 2018 · Replaced the watchguard with pfSense (gladly). 2. Packet count stays at 0 on phase 2 Can't ping other subnet Phase 1 is set up with LAN remote gateways, is it a Gonna need more information about your configuration. This article ap Aug 4, 2022 · If your IPsec tunnel is up but packets are getting dropped with wrong SPI Counter Increase, then check the highlighted link. Please see attached screenshot to view the status on the Sep 2, 2025 · On This Page IPsec (Tunnel Mode) Captive Portal Firewall Rules Routing Problems Hardware Checksum Offloading Troubleshooting Lost Traffic or Disappearing Packets If there are issues with traffic being lost, or packets that seem to disappear or never show up (or leave) an interface, there are a few potential causes to consider. 1. Hey everyone, I have two pfSense firewalls with an IPsec tunnel connection. Dec 3, 2020 · Table of Contents Does Pfsense support Site to Site VPN using IPsec? When I first heard about the Pfsense firewall, I asked the same question to myself: Is it possible to set up an IPsec tunnel on a free and open-source firewall? Due to the fact that most of the devices that support IPsec features are expensive. Follow the troubleshooting advice in this section to diagnose and solve most common problems with IPsec tunnels on pfSense® software. Phase 2 remote network appears to be OK. Seems that the firewall of DigitalOean is not allowing ESP traffic (or I dont know how to let the traffic pass trough). Interface-bound state policy does not handle IPsec VTI traffic as expected when filtering on ``enc0`` interface Apr 6, 2017 · I am trying to setup a site to site VPN tunnel with one of our customer. You also need to make sure you have a gateway that can be used for policy based routing over the VTI tunnel and that you have actually created firewall rule that says somehow Apr 18, 2015 · I am at a bit of a loss here. I've got the dedicated layer 3 zone, tunnel interface, IKE Gateway, Virtual Router etc. When you traceroute far end LAN subnet, traceroute goes outside of tunnel (going towards ISP) I suspect the routes (specifically gateway) is no good - pfsense doesnt seem to know to hit those subnets, it needs to use IPsec tunnel, rather than the default gateway. This is a home LAN project that is not going over the internet. 0. 0/24 Issue: 1. Added complexity of the remote end having another firewall in place before the fortigate. 0/23 Remote: 192. 2 [0] spi=22121990 (0x1518e06) But I can't ping from site to site. We need to establish a IPsec site to site vpn connecti PFsense output is zero. This is the same on both ends of the tunnel, and both ends are running latest stable pfSense. 6. Did you set up static routes? That’s part of what needs to be done. Jul 12, 2022 · how to handle a scenario where the IPsec Tunnel is up and traffic seems to be leaving FortiGate but is not reaching the remote end. Ciphers seem to match. I have gateway monitoring set up and it's still pending. Tunnel between the two was MUCH easier to establish, but now I can't get any traffic to move over it (no ping). One odd thing to me is that packet capture shows ping leaving WAN interface, instead of ipsec interface. Pfsense lan currently set to a /32 and remote end of tunnel is also a single host /32 Oct 26, 2019 · Each pfSense is a Firewall + DHCP server + Gateway for the local LAN. 0, the tunnel worked fine. 168. Both phase 1 and phase 2 appear to come up correctly. I've temporarily put an any any rule in my IPSec Firewall rules for What does a packet capture show on the LAN-side for the specific host and port? Does it show pfSense handing off the traffic? Because if it does, pfSense is no longer in the equation. I looked into the routing table of pfSense and there is no route to the other LAN through the IPsec tunnel. Reconfiguring the IPSec connection in pfSense (No reboot yet as this will pull down our whole network. Our company just switched to a new router with pfSense 2. a) sa=0 indicates there is mismatch between selectors or no traffic is being initiated b) sa=1 indicates IPsec SA is matching and there is traffic between the selectors c) sa=2 is only visible during IPsec SA rekey Maybe that helps. 8 - you would have to look that up. Don’t believe you should be running tunnel IPSec concurrently with a VTI to the same endpoint. 10. Prior to upgrades the local office was on 2. the tunnel has always come up no problem but the damn traffic didn't go through! Aug 1, 2017 · Hello there, I've established an IPSec tunnel between a PFSense appliance and a Stormshield appliance. Server - UDP Local: 10. x to 10. x [0]->172. For now we have around 3 "broken" connections of the 30-35 connections. Personally, I've never had to add a static route for remote networks if it's following the default gateway of my pfSense to get IPSec tunnels to initiate. The ipsec status now says connected but no traffic. I've already put in a static route from our gateway to the remote network fwiw Tunnel shows as established in IPSec Status. I’ve spent two days with this, and still don’t know how to solve it. From the pfsense side pinging the other end of the ipsec VTI tunnel I get no response. it than refuses any rule based traffic to anywhere! Added by Ingo-Stefan Schilling almost 10 years ago. If your IPsec tunnel is up and you have configured dynamic routing over IPsec against a Cisco router, then make sure you have followed the steps listed in How to Configure Dynamic Routing over IPSec against Cisco routers. IPsec tunnel is up, P1 and P2s are working, no ping, no route from/to of any side of the tunnel. . Clients on both sides are able to ping each others on Oct 26, 2018 · Do you see the traffic counters in Status > IPSec increasing at either end if you try to ping across it? These are all tunnels with pfSense at both ends? You should at least check that Async-Crypto is disabled in IPSec > Advanced. 0/24 Tunnel: 192. Tunnel had previously worked with a paloalto appliance in place of pfsense, suggesting remote fortigate side is ok. 100. If you can ping from 192. 16. Jun 8, 2018 · I have a IPSec VPN running between two sites. Site A is pfSense and site B is a UniFi Security Gateway. Whats the cause and how can i solve this? Jul 19, 2009 · I have been using. x. Mar 4, 2009 · Log: racoon: []: INFO: IPsec-SA established: ESP x. 3 on watchguard x1000 hardware and been trying to tunnel with both m0n0wall and sonicwall. It's showing up on both the client and server side. Site A has an SG-6100, Site B a 7100. Sep 2, 2025 · Tunnel establishes when initiating but not when responding Tunnel establishes at start but not when disconnected Tunnel stops attempting connections after timeout Troubleshooting IPsec Connections IPsec connection names IPsec tunnels follow a consistent naming pattern when forming connection names used in the strongSwan configuration. Sep 2, 2025 · On This Page Tunnel establishes but no traffic passes Some hosts work but not all Connection hangs Disappearing traffic Troubleshooting IPsec Traffic Tunnel establishes but no traffic passes The first place to look if a tunnel comes up but will not pass traffic is the IPsec firewall rules tab. Nov 28, 2022 · Hi, We are migrating to VTI based IPsec, and we are having some issues with the tunnel. I have setup an IPsec tunnel between the two gateways, but while I can access both gateways from a local host, I can't connect to any remote hosts. I enabled the NAT-T option on the IPSec running on the SITE B (The digital OCean droplet) and now is working well. Also, for some reason I think I've read something about a known issue in 7. Is it only failing to initiate from one direction? If the Phase 2 does come up for that network, on both sides of the Jul 26, 2019 · Ipsec tunnel established, but no traffic or ping possible Ask Question Asked 6 years, 2 months ago Modified 6 years, 2 months ago Jun 10, 2021 · Hey guys, Trying to troubleshoot why our site to site IPSec tunnel between our PFsense and a non PFsense device doesn't work. Conversely, if Site B cannot Jul 27, 2019 · After a bit of help with a pfsense to fortigate IPSec tunnel. Furthermore, I have enabled not just OSPF but BGP (to eliminate some kind of multicast transmission issue) but BGP doesn't work as well. 3. The allow any any ipsec rule has not hits (no traffic increments) 2. Both versions are now 2. 1 ver and remote office 2. If it doesn't, you need to find out where it's failing (firewall rule, MTU issue, etc). Jul 6, 2022 · Troubleshooting IPsec VPNs Due to the finicky nature of IPsec it is not unusual for trouble to arise with tunnels when creating them initially or over time. The status of the IPsec tunnel says it is connected on both phase 1 and phase 2. 4 that in the vast majority of cases speeds up ipsec, sometimes significantly. Mar 24, 2017 · Hi, a new pfSense user here. If Site A cannot reach Site B, check the Site B firewall log and rules. x already with Phase 2 failing, then I'm not sure how it's actually working. Firewall rules and every single google hit on the first 5 pages checked. Any Established IPSec Tunnel refused transporting further traffic out of sudden. I have a pfsense peer to peer / site to site network going right now. Outgoing packets leave but never arrive. configured per the Palo Alto admin guide. pfsense 1. Updated almost 10 years ago. 4. That is a new option ins 2. Minimal traffic received. There are no packets going in and out of phase two though. mogbaba vxtje pbt mcr97 9x4b jy uum 0ccrkoo yqj36fp gt