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Problem forwarding traffic from Lan A to Lan B

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  • E
    EvilUnicorn
    last edited by Apr 25, 2015, 2:38 PM Apr 25, 2015, 9:06 AM

    I'm trying to send traffic from a client connected to LAN1 (WEB_LAN_interface) to a proxy (squid) on LAN2 (PROXY_LAN_Interface). LAN2 has to possibility to go to WAN. I've created a NAT port forward rule:

    action: pass
    interface: WEB_LAN_interface
    Protocol: TCP
    Source: single host (the client I want to forward)
    Source port: any
    Destination: WAN
    Destination port: HTTP
    Redirect target IP: Proxy on PROXY_LAN_Interface
    redirect port: 3128

    Saving that also creates a firewall rule.

    Now tailing the log on the squid proxy shows that no traffic is sent to the proxy. But if I enter a system wide proxy setting on the client, traffic starts showing up on the proxy! So it seems that the firewall rule is correct but traffic just isn't redirected if no proxy setting is entered on the client. Seems that the NAT rule is not working. I've tried endless settings but not getting it fixed. I can have it working with the proxy setting on the client but the goal is to use the proxy as transparent and handle the redirection on pfsense.

    I've seen some similar questions on the forum but none of them seem to solve my problem. I did notice that on version 1.x people seem to have it working and on version 2.x not. So perhaps that has something to do with it.
    Any help would be great!

    Regards

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    • J
      johnpoz LAYER 8 Global Moderator
      last edited by Apr 25, 2015, 10:57 AM

      dude what??  That is not how you would do it it all..  Why are you sending it to your WAN?  Just redirect the traffic to your lan 2 interface.

      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 2.7.2, 24.11

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      • S
        s13
        last edited by Apr 27, 2015, 8:43 PM

        ^ Where does it say he's sending it to WAN? Looks like he's intercepting HTTP traffic bound for the WAN and rerouting it to his proxy.

        EvilUnicorn, unfortunately it seems like you're trying to set up a transparent proxy, which has been broken since 2.2. Many of us are experiencing the same problem - traffic is simply not rerouted to the proxy correctly. This functionality works as expected in 2.1.x, so I'd recommend using 2.1.5 if possible until this is fixed in 2.2.x. No idea if/when that will happen, however, as some of the staff posts here suggest they don't think anything's actually wrong :o

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        • J
          johnpoz LAYER 8 Global Moderator
          last edited by Apr 28, 2015, 2:42 AM

          Destination: WAN

          What kind of dest is that?  It would be dest ANY? My bad on wording that wrong, why would dest be WAN is what I meant to say.

          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 2.7.2, 24.11

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