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Help on load balancing arplookup 210.213.215.254 failed: host is not on local ne

Scheduled Pinned Locked Moved Routing and Multi WAN
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  • C
    cheeky
    last edited by Feb 4, 2007, 11:42 AM

    Yes, hoba. WAN via PPPoE causes problems for load balancing pools using latest snapshots but it is functional using the original 1.0.1.
    This must be the cause of my sleepless nights trying to use the latest snapshots in order for my pfsense to have failover capability. ???

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    • H
      hoba
      last edited by Feb 4, 2007, 3:01 PM

      What do you manually assign as gateway when using 1.0.1 releaseversion for the pppoe link?

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      • C
        cheeky
        last edited by Feb 6, 2007, 8:30 AM

        The gateway that i assign for the WAN poolmember is the gateway that i see from the status\interfaces of WAN (assigned automatically by my ISP via PPPoE).

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        • H
          hoba
          last edited by Feb 6, 2007, 8:31 AM

          I guess gateway and interface IP is the same and it is a /32, right?

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          • C
            cheeky
            last edited by Feb 6, 2007, 8:51 AM

            WAN IP is 210.213.171.2xx subnet 255.255.255.255
            Gateway IP 210.213.170.x

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            • H
              hoba
              last edited by Feb 6, 2007, 9:08 AM

              Ok, I guess the code is too smart to accept a /32 and a gateway outside this subnet atm. Time to revisit it  ;)

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              • C
                cheeky
                last edited by Feb 9, 2007, 5:13 AM

                Any update on this problem? Have this been resolved by the new snapshots?
                Thank you very much.

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                • D
                  databeestje
                  last edited by Feb 19, 2007, 7:23 PM

                  please give me the output from the routing table from Diag -> Routes.

                  I also require the relevant rules from your rules.debug.
                  using the command page execute the following.
                  grep route-to /tmp/rules.debug

                  I do not have a working pppoe test rig so I'm working in the dark here.
                  Are you willing to provide me access to the box?
                  I also commited another load balancer fix this evening. Check if that one outputs any messages.

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                  • C
                    cheeky
                    last edited by Feb 20, 2007, 3:21 PM

                    I'll try loading the new snapshot later, i'm currently using now the original 1.0.1 iso. So far no problem on my load balancer using PPPoe on WAN but no failover.
                    I'll post my results immediately.
                    Yes, i'm willing to open my pfsense firewall for you to debug inside.
                    Thanks.

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                    • D
                      dotdash
                      last edited by Feb 21, 2007, 4:48 PM

                      I am also having this problem. If it helps any, here is some data on my setup:
                      lan=fxp0
                      wan=fxp1  (pppoe)
                      opt1=fxp2 (WAN2 static IP)

                      wan 100.200.200.110
                      subnet mask 255.255.255.255
                      gateway 100.200.200.254

                      1.0.1 release
                      worked fine, but ISP turned off ICMP on the next-hop router.
                      Started monitoring the dns server, but it frequently timed-out and went offline.

                      Updated using
                      pfSense-Full-Update-1.0.1-SNAPSHOT-02-14-2007.tgz
                      Deleted and re-configured balancer.
                      Started getting messages in system log and no traffic was going out WAN
                      kernel: arpresolve: can't allocate route for 100.200.200.254
                      kernel: arplookup 100.200.200.254 failed: host is not on local network

                      updated to
                      pfSense-Full-Update-1.0.1-SNAPSHOT-02-18-2007.tgz
                      Slightly diffferent messages in log

                      kernel: arpresolve: can't allocate route for 100.200.200.254
                      kernel: arplookup 100.200.200.254 failed: could not allocate llinfo
                      kernel: arpresolve: can't allocate route for 192.0.2.113
                      kernel: arplookup 192.0.2.113 failed: host is not on local network

                      For now, I have pulled the WAN from the balancer pool
                      (only has opt1)
                      The default gateway for my LAN is still the balancer.
                      I CAN however, create a rule for a specific IP pointing to gateway default
                      and send that machine out the WAN.

                      Here is a partial dump of the current routing table
                      Destination Gateway Flags Refs Use Mtu Netif Expire
                      default   100.200.200.254 UGS 0 45115 1492 ng0
                      100.200.200.110      lo0   UHS   0   0   16384    lo0
                      100.200.200.254      100.200.200.110        UH     1     105      1492    ng0

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                      • D
                        dotdash
                        last edited by Mar 2, 2007, 3:55 PM

                        Just got a chance to try with 1.0.1-SNAPSHOT-02-27-2007 (via update firmware)
                        Still getting 'host is not on local network' error.

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                        • H
                          hoba
                          last edited by Mar 2, 2007, 3:56 PM

                          We are missing a testbed to fix this bug atm. We'll work on it soon. Stay tuned.

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                          • S
                            sai
                            last edited by Mar 3, 2007, 2:15 AM Mar 3, 2007, 2:10 AM

                            dotdash

                            @dotdash:

                            wan 100.200.200.110
                            subnet mask 255.255.255.255
                            gateway 100.200.200.254

                            Its a bit early in the morning here, but your subnet mask looks way wrong. The WAN and its gateway should be on the same subnet, and so the arplookup error seems to be reasonable. Try a subnet of 255.255.255.0

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                            • H
                              hoba
                              last edited by Mar 3, 2007, 2:15 AM

                              @sai:

                              dotdash

                              @dotdash:

                              wan 100.200.200.110
                              subnet mask 255.255.255.255
                              gateway 100.200.200.254

                              Its a bit early in the morning here, but your subnet mask looks way wrong. The WAN and its gateway should be on the same subnet, so try a subnet of 255.255.255.0

                              No, pppoe just works this way.

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                              • C
                                cheeky
                                last edited by Mar 3, 2007, 12:25 PM

                                @hoba
                                Still waiting for the final resolution to this problem, i'm still using now the original 1.0.1 with no problem.
                                Thank you very much.
                                :D ;D ::)

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                                • N
                                  ndelong
                                  last edited by Mar 14, 2007, 10:06 PM Mar 14, 2007, 10:01 PM

                                  If it helps, I'm in a similar situation (fail-over not working due to arp messages):

                                  WAN1: PPPoE w/"static" DHCP /32
                                  WAN2: Static

                                  Running 1.0.1-SNAPSHOT-03-08-2007

                                  Getting these messages:

                                  
                                  kernel: arplookup 204.213.240.xxx failed: host is not on local network
                                  kernel: arpresolve: can't allocate route for 204.213.240.xxx
                                  
                                  

                                  Anything I can do to help? Send logs, etc?

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                                  • S
                                    sullrich
                                    last edited by Mar 14, 2007, 10:12 PM

                                    Try adding static routes for these hosts or check the routing table to ensure they are correct.

                                    netstat -rn

                                    Also I recall LB not working with pppoe but I could be wrong here.

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                                    • D
                                      databeestje
                                      last edited by Mar 15, 2007, 8:44 PM

                                      that would be a yes
                                      I think we add a route for the gateway on the underlying interface instead of the ng0 device.

                                      Which would result in this iirc.

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                                      • N
                                        ndelong
                                        last edited by Mar 21, 2007, 2:04 PM

                                        Our firewall started off with PPPoE on the WAN interface connected to an old Westel modem. We added a cable connection w/static IP months later and are currently testing LB/FO. Both connections work fine independently of each other - even with the load balancing pools created. As soon as we create any rules on the LAN interface that reference the LB or FO gateways, we get intermittent connectivity and those arp messages. Unfortunately, I'm not on that customer's site, so my netstat -rn is shows the routes with LB/FO rules disabled:

                                        
                                        Destination        Gateway            Flags    Refs      Use  Netif Expire
                                        default            204.213.240.129    UGS         0  7510236    ng0
                                        74.92.60.116/30    link#4             UC          0        0    em3
                                        74.92.60.118       00:13:f7:22:ae:b0  UHLW        1   432194    em3   1043
                                        127.0.0.1          127.0.0.1          UH          0        0    lo0
                                        192.168.1          link#3             UC          0     3236    em2
                                        204.213.240.253    lo0                UHS         0        0    lo0
                                        
                                        

                                        Would a temporary workaround be to connect the Westel modem to a Linksys router (to handle the PPPoE) and configure static RFC1918 IP's between the pfSense box and the Linksys?

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                                        • D
                                          dotdash
                                          last edited by Mar 21, 2007, 2:59 PM

                                          A similar situation was discussed here: http://forum.pfsense.org/index.php/topic,4100.0.html
                                          Quick summary:
                                          You could use 1.0.1 release and PPPoE on pfSense's WAN.
                                          You could double nat, but that sucks.
                                          If you have multiple publics (static block), have a router (another pfSense with LAN bridged to WAN??) do the PPPoE and configure pfSense with a straight public IP.

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