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Anonymous_User
Contributor
October 31, 2008
Question

Returning Traffic

  • October 31, 2008
  • 3 replies
  • 4185 views
FG60B WAN1 y WAN2, each one configured with different IP address. No Load Sharing Nor Link Redundancy, but just migrating external IP address for external applications (the current access is through an ISP on WAN1 and needs to be changed to the second ISP on WAN2) Duplicated Policies are OK Both gateways are set in Static Routing Table (one per interface). No priority set. How can I tell which interface is using an incoming connection to return? I would like to make it return through the interface it used to in

    3 replies

    laf
    laf
    New Member
    November 3, 2008
    You said you have two static routes. Are both using the same metric? Check in the Router --> Monitor and see what routes you have there.
    rwpatterson
    rwpatterson
    New Member
    November 3, 2008
    When a session is opened from the node, it should be returning on the same policy. If it' s new traffic, it may be using a different one.
    laf
    laf
    New Member
    November 4, 2008
    diagnose sniffer packet wan1 ' host x.x.x.x' and then move to that x.x.x.x site and see what s happening.
    A
    Anonymous_UserAuthor
    Contributor
    November 13, 2008
    Hi, I also have a problem like that, but with just one route marked as default. Is there some way to force traffic returns to the incoming interface? That interface where traffic comes is not default GW. ex: Default gw to wan2 and traffic incoming from wan1. I need traffic returns to wan1. Thanks, Paulo Sousa
    rwpatterson
    rwpatterson
    New Member
    November 13, 2008
    When traffic goes out wan2 to say...eBay.com. eBay only knows where the return address is (because you have to NAT it to get out the door), not you' re wan1 address, so of course it' s going back to wan2. The only way would be to create a NAT pool, and force outgoing traffic to have the other interface' s (wan1) IP address, but I' m not sure how sound that practice would be, or if it would even work as desired. Good luck
    support12
    support12
    New Member
    November 24, 2008
    Hi if traffic is coming from wan1 it would exit wan1 on the return. The firewall do not follow the router behavior it is different in that scenario.
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