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    Wierd firewall issue in wireguard

    Scheduled Pinned Locked Moved WireGuard
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    • D
      DnetSystems
      last edited by

      Hello! I have a site-to-site vpn using wireguard between 2 pfsense machines. They are connected using the subnet 10.65.105.0/30. PfSense A is in my home, and PfSense B is at my VPS. PfSense A has the ip 10.65.105.1 and PfSense B has 10.65.105.2.

      I use FRR OSPF between and no static routes. OSPF works fine and they detect each other. Now comes the weird problem. I can send traffic from A to B, but not the other way around. My rules on both sides look like this:
      rules.png

      If i ping 172.16.15.253 from site B (172.16.15.253 is at site A), the pings fails, if i look in the packet capture of the wireguard interface i can see the traffic. But the traffic never comes out of the lan interface where 172.16.15.253 is.
      pac.png

      So the traffic does indeed reach PfSense A from PfSense B, but somewhere in PfSense A the traffic drops/dissapears.

      Another wierd thing is that PfSense B can ping PfSense A's ip address and vice versa, so traffic at the 10.65.105.0/30 subnet works fine.

      What is happening here?

      Bob.DigB 1 Reply Last reply Reply Quote 0
      • Bob.DigB
        Bob.Dig LAYER 8 @DnetSystems
        last edited by

        @DnetSystems said in Wierd firewall issue in wireguard:

        FRR OSPF

        I have no clue about that. But what is your allowed IPs look like.

        D 1 Reply Last reply Reply Quote 0
        • D
          DnetSystems @Bob.Dig
          last edited by

          @Bob-Dig Allowed ips are 0.0.0.0/0 on both sides.

          1 Reply Last reply Reply Quote 0
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