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    Routing to wrong interface

    Scheduled Pinned Locked Moved Routing and Multi WAN
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    • C
      CyberTiVo
      last edited by

      No

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      • DerelictD
        Derelict LAYER 8 Netgate
        last edited by

        You're right. That doesn't make sense. It looks like you have policy routing enabled.

        Post your LAN rules.

        Chattanooga, Tennessee, USA
        A comprehensive network diagram is worth 10,000 words and 15 conference calls.
        DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
        Do Not Chat For Help! NO_WAN_EGRESS(TM)

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        • chpalmerC
          chpalmer
          last edited by chpalmer

          What is the address of the client on the LAN you are trying to ping from? NM

          I just tried this via the GUI and the only thing I saw was that I saw no packet captures to my interface but only pings through it.

          I have a very similar /30 between two routers.

          Does this happen to you when you use the GUI? Ill try via command line in a bit.

          Triggering snowflakes one by one..
          Intel(R) Core(TM) i5-4590T CPU @ 2.00GHz on an M400 WG box.

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          • C
            CyberTiVo
            last edited by

            Screen Shot 2019-06-23 at 2.47.22 PM.png

            Pinging from 172.18.1.48

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            • C
              CyberTiVo
              last edited by

              pinging fro the GUI works, if I select the source interface or automatic

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              • C
                CyberTiVo
                last edited by

                Once I get this working, I plan to change it to a /31, not really necessary, just want too; does pfSense support /31, I see it as an option?

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                • C
                  CyberTiVo
                  last edited by

                  I figured it out! Somewhere along the way, things weren't working and I created a gateway for 192.168.10.252. Once I removed it, it started working; it was somewhat related to Multi-WAN; thanks for the help

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                  • chpalmerC
                    chpalmer
                    last edited by chpalmer

                    I cannot reproduce this via command line either.

                    edit-
                    Glad you found it.

                    Triggering snowflakes one by one..
                    Intel(R) Core(TM) i5-4590T CPU @ 2.00GHz on an M400 WG box.

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                    • C
                      CyberTiVo
                      last edited by

                      While it is working now, it got me thinking, there still seems to be a problem with the Multi-WAN routing. I know I am just a user but, seems you should be able to get to your secondary WAN device without having to disable your primary WAN link. There may be an architecture reason this will not work. Using my example above, shouldn't the routing logic know this is a "connected" network and send the packets to the igb3 interface before it decides to send it out the current "WAN"?

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                      • johnpozJ
                        johnpoz LAYER 8 Global Moderator
                        last edited by johnpoz

                        you can get to any network that is connected to pfsense as long as the firewall rules allow it. You can get to any network that is downstream via these networks as long as you setup a gateway and routes.

                        I have no idea what you did with your gateway setup - but you sure do not need to disable your wan to use a secondary path, etc.

                        Keep in mind there is a difference between creating simple routing path via a gateway and routes, and putting a gateway on an interface that makes a "wan" to pfsense which pfsense would by default nat too, etc. And now you would have to take into account your outbound nat settings.

                        Also policy routing comes into play if you set a gateway on a firewall rule, etc. etc.

                        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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                        • C
                          CyberTiVo
                          last edited by

                          Sounds like I need to create a separate rule on the LAN interface to use the specific gateway on igb3 instead of the Gateway group. I tried to add a route to 192.168.10.252 but, of course, pfSense would not let me, since it was connected. I will test when I get home and report back.

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                          • JeGrJ
                            JeGr LAYER 8 Moderator
                            last edited by JeGr

                            @CyberTiVo said in Routing to wrong interface:

                            Once I get this working, I plan to change it to a /31, not really necessary, just want too; does pfSense support /31, I see it as an option?

                            BTW /31 makes no sense to me. /32 is host. /30 is 2 usable addresses. You can't use /31 without some point2point blackmagic in the UI IMHO.

                            Edit: Actually it's selectable. Don't know if your peer supports it though or if it works at all. Was never needed actually ;)

                            Don't forget to upvote 👍 those who kindly offered their time and brainpower to help you!

                            If you're interested, I'm available to discuss details of German-speaking paid support (for companies) if needed.

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                            • DerelictD
                              Derelict LAYER 8 Netgate
                              last edited by

                              Yes, pfSense supports /31.

                              Chattanooga, Tennessee, USA
                              A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                              DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                              Do Not Chat For Help! NO_WAN_EGRESS(TM)

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                              • johnpozJ
                                johnpoz LAYER 8 Global Moderator
                                last edited by

                                don't really see the point though. Not like your short on ip space to use for your transit networks ;)

                                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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                                • DerelictD
                                  Derelict LAYER 8 Netgate
                                  last edited by Derelict

                                  It would make sense in something like a colo or metro-e environment. Or anywhere where RFC1918 is the exception not the rule. Which should be everywhere, actually.

                                  Chattanooga, Tennessee, USA
                                  A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                  DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                  Do Not Chat For Help! NO_WAN_EGRESS(TM)

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