Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    2 pfsense instances connected to each other routing public IP addressing advertising the wrong address

    Scheduled Pinned Locked Moved Routing and Multi WAN
    3 Posts 2 Posters 204 Views 2 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • M Offline
      mephisto
      last edited by

      Hi guys,

      I've got 2 pfsense instances connected to each other in the following way

      public internet > ISP router public IP range1 /30 > pf01 (public IP range 1 /30 on WAN, different public IP range 2 /28 LAN) > pf02 (public IP range 2 /28 on WAN, regular private LAN IP on LAN)

      Everything works fine, except that when I have a server behind PF02 and I check what public IP address it uses, the public IP address of PF01 comes up when using check my ip for example

      I'm wondering about what setting on pf01 would allow the traffic to show as coming from pf02 /30 WAN IP address when going to public internet.

      What do you guys think?

      1 Reply Last reply Reply Quote 0
      • X Offline
        xciter327
        last edited by

        To me it looks like one of them is NAT-ing. Probably the first one. Change NAT type to "disabled" and check again. If no internet on the LAN behind the second one, then the routing is bad.

        1 Reply Last reply Reply Quote 1
        • M Offline
          mephisto
          last edited by

          As i was researching about it you posted here and I found this guide:

          https://www.netgate.com/docs/pfsense/book/routing/routing-public-ip-addresses.html

          It was indeed NAT, got outbound NAT disabled for the second interface public IP range /30 and worked fine!

          Thanks!

          1 Reply Last reply Reply Quote 0
          • First post
            Last post
          Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.