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    pfsense boxes unable to reach each other over openvpn tunnel

    Scheduled Pinned Locked Moved OpenVPN
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    • johnpozJ
      johnpoz LAYER 8 Global Moderator
      last edited by

      So you set these boxes up with a site to site?? You wouldn't be creating routes and gateways if you setup a s2s connection... So I am a bit confused on how you have this setup..

      An intelligent man is sometimes forced to be drunk to spend time with his fools
      If you get confused: Listen to the Music Play
      Please don't Chat/PM me for help, unless mod related
      SG-4860 24.11 | Lab VMs 2.8, 24.11

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      • J
        jt
        last edited by

        yeah, sorry - S2S. so far it's been working fine with routes pulled. didn't create any GW's, just this one, as per the guide.

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        • johnpozJ
          johnpoz LAYER 8 Global Moderator
          last edited by johnpoz

          With a s2s setup... On your server side you would setup the remote networks that are on your client side, and on the client side you would setup the remote networks that are on the server side..

          That is all that is too it.. Which guide are you looking at? Are you doing a PKI (ssl one) or a static key one?

          An intelligent man is sometimes forced to be drunk to spend time with his fools
          If you get confused: Listen to the Music Play
          Please don't Chat/PM me for help, unless mod related
          SG-4860 24.11 | Lab VMs 2.8, 24.11

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          • J
            jt
            last edited by

            i am doing static key.
            as for your advice, that's exactly how I got it set up, and it works fine for all the clients on each network - they can communicate all fine.
            my issue is with the firewall boxes themselves - they can't reach each other. currently (after creating a GW from the OVPN iface and assigned a static route to the other site's network) it works from ovpn tunnel's server side. the client is the last remaining piece that needs to be somehow forced to route all traffic originating from the box, destined to the other firewall, through the tunnel.

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            • johnpozJ
              johnpoz LAYER 8 Global Moderator
              last edited by johnpoz

              @jt said in pfsense boxes unable to reach each other over openvpn tunnel:

              they can't reach each other.

              Well clearly that is not true - since if they could not talk to each other the vpn wouldn't be up.. Please be clear on what your trying to do exactly that is not working.

              Your trying to ping the pfsense lan IP from the client site, your trying to ping the client side lan IP from the server side pfsense box? Your trying to do a dns query? What exactly?

              An intelligent man is sometimes forced to be drunk to spend time with his fools
              If you get confused: Listen to the Music Play
              Please don't Chat/PM me for help, unless mod related
              SG-4860 24.11 | Lab VMs 2.8, 24.11

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              • J
                jt
                last edited by

                they CAN reach each other's WAN address.
                they CAN'T reach each other's LAN address. purpose is, I believe irrelevant, but the intention is to point the firewalls to each other for conditional DNS resolution, so the clients behind firewall1 can resolve hosts behind the firewall2, and vice versa.

                i'm checking the connectivity by SSHing to firewall1 and pinging the firewall2's LAN address. this currently (after adding the GW and static route) works from ovpn server side, but not from opvn client side.

                thx for your help, guys.

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                • johnpozJ
                  johnpoz LAYER 8 Global Moderator
                  last edited by

                  What exactly do you want the other unbound to resolve for the other side, are you using different domains?

                  An intelligent man is sometimes forced to be drunk to spend time with his fools
                  If you get confused: Listen to the Music Play
                  Please don't Chat/PM me for help, unless mod related
                  SG-4860 24.11 | Lab VMs 2.8, 24.11

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                  • J
                    jt
                    last edited by jt

                    yes, different domains. i wanna be able to resolve host2.site2.domain.com from host1.site1.domain.com (site1.domain.com and site2.domain.com obviously being the domains at the two sites connected via ovpn tunnel).

                    edit for some more context: these are two different organizations, somewhat cooperating with each other, managed by a single IT team. therefore, it makes sense to us to have both sites reachable from each other, while not merging their domains.

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                    • johnpozJ
                      johnpoz LAYER 8 Global Moderator
                      last edited by johnpoz

                      yeah just setup domain overrides in the unbound so they know to go ask the other unbound. And then need to make sure the acls allow the queries, etc.

                      You will also need to make sure you setup private domains, because since your doing a forward for that other domain if it comes back as rfc1918 it would be a rebind. And you need to make sure the unbound is setup so it can use the interface it needs do the query down the vpn connection.

                      An intelligent man is sometimes forced to be drunk to spend time with his fools
                      If you get confused: Listen to the Music Play
                      Please don't Chat/PM me for help, unless mod related
                      SG-4860 24.11 | Lab VMs 2.8, 24.11

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                      • J
                        jt
                        last edited by

                        i made it work over IPsec and this guide: https://www.slideshare.net/NetgateUSA/routed-ipsec-on-pfsense-244-pfsense-hangout-june-2018

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                        • KOMK
                          KOM
                          last edited by

                          I'm surprised you didn't use the Netgate guides. They're the only ones I really trust.

                          https://docs.netgate.com/pfsense/en/latest/vpn/ipsec/configuring-a-site-to-site-ipsec-vpn.html

                          or

                          https://docs.netgate.com/pfsense/en/latest/book/ipsec/site-to-site.html

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                          • johnpozJ
                            johnpoz LAYER 8 Global Moderator
                            last edited by johnpoz

                            Its a hangout from netgate he was using.

                            An intelligent man is sometimes forced to be drunk to spend time with his fools
                            If you get confused: Listen to the Music Play
                            Please don't Chat/PM me for help, unless mod related
                            SG-4860 24.11 | Lab VMs 2.8, 24.11

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                            • KOMK
                              KOM
                              last edited by

                              Ah I didn't see that.

                              I prefer the docs. The videos are nice but too much blah blah blah. I can watch an hour-long video and try to hunt down the meat by skipping around, or blast through a text guide in 10 minutes. That's not to say that I don't like or appreciate the videos. On topics that I have little knowledge in, they're extremely helpful and I watch the whole thing. But when I just need the quick & dirty particular steps, the guide is best for me.

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