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    Multi WAN on DHCP Fails

    Scheduled Pinned Locked Moved Routing and Multi WAN
    15 Posts 7 Posters 6.2k Views
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    • B
      bgbearcatfan
      last edited by

      The gateway and subnet are the same on both wan interfaces.

      Subnet:    255.255.240.0
      Gateway:  72.49.176.1
      IP's for both WAN's:  72.49.190.xxx and 72.49.185.xxx

      /Brian
      /2.0.1-RELEASE
      built on Mon Dec 12 18:24:17 EST 2011

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      • H
        heper
        last edited by

        pfsense does not support same gateway for multiple wan interfaces …
        only way,i know, to get it to work is by putting a cheap linksys/dlink/whatever router in between 1 of the interface

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        • C
          cmb
          last edited by

          yeah that's why, that must be another circumstance that can trigger that. The system has an ARP entry for that gateway IP on another NIC, and you're trying to force it to ARP that on a different NIC, and one particular IP can only have one ARP entry. An intermediate box doing NAT on one of the WANs is the way to work around that.

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          • jimpJ
            jimp Rebel Alliance Developer Netgate
            last edited by

            I have seen that before when my cable modem lost sync and some states were still around from the 192.168.x.x IP for whatever reason. Since pf still had states referring to that gateway, the ARP errors continued.

            Try resetting the states table (or perhaps run pfctl -g x.x.x.x  where x.x.x.x is the IP you're seeing the arp messages for) and see if they clear up.

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            • B
              bgbearcatfan
              last edited by

              I'm pretty sure i tried that already, but i'll give it another shot.  Sounds like i might just be sol

              /Brian
              /2.0.1-RELEASE
              built on Mon Dec 12 18:24:17 EST 2011

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              • jimpJ
                jimp Rebel Alliance Developer Netgate
                last edited by

                OK. (Actually it's pfctl -b, not -g, apparently had a brain misfile on my last reply)

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                • W
                  webdawg
                  last edited by

                  @heper:

                  pfsense does not support same gateway for multiple wan interfaces …
                  only way,i know, to get it to work is by putting a cheap linksys/dlink/whatever router in between 1 of the interface

                  I thought it did now.

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                  • jimpJ
                    jimp Rebel Alliance Developer Netgate
                    last edited by

                    @webdawg:

                    @heper:

                    pfsense does not support same gateway for multiple wan interfaces …
                    only way,i know, to get it to work is by putting a cheap linksys/dlink/whatever router in between 1 of the interface

                    I thought it did now.

                    Only for PPPoE, not DHCP/Static/anything else.

                    Remember: Upvote with the 👍 button for any user/post you find to be helpful, informative, or deserving of recognition!

                    Need help fast? Netgate Global Support!

                    Do not Chat/PM for help!

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                    • W
                      webdawg
                      last edited by

                      @jimp:

                      @webdawg:

                      @heper:

                      pfsense does not support same gateway for multiple wan interfaces …
                      only way,i know, to get it to work is by putting a cheap linksys/dlink/whatever router in between 1 of the interface

                      I thought it did now.

                      Only for PPPoE, not DHCP/Static/anything else.

                      Ahh…No wonder my Multiwan PPPoE is working.

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                      • D
                        dwaynee77
                        last edited by

                        I don't call that multi WAN dude, one WAN, seperated using switch??

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