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    Peculiar routing / MTU problem

    Scheduled Pinned Locked Moved Routing and Multi WAN
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    • G
      Gob
      last edited by

      Hi

      My setup is:
      PFS 1.2.2
      2 x WAN (both connected to DSL routers with NO NAT on routers)
      1 x DMZ
      1 x LAN

      All outbound traffic is routed to Default gateway (WAN1) except http/https which is routed to WAN2

      When I first set this up we had terrible performance issues using http over WAN2 - some web pages would not display and others were very slow. I tweaked the MTU settings on the WAN2 interface and on that DSL router. When lowered to an MTU of 1458 it seemed to work perfectly on the few machines that I tested.
      Now it appears that almost half of the 45 machines on our LAN are still struggling with failing/slow web browsing but the other machines work perfectly.

      Would an incorrect MTU setting on the WAN affect only some machines on my LAN?

      Really don't know where to start wih this now!

      Thanks

      If I fix one more thing than I break in a day, it's a good day!

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