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    Strange behavior with ATT gateway in IP Passthrough

    Scheduled Pinned Locked Moved Firewalling
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    • C
      code4food23
      last edited by code4food23

      Hi all,

      New to the Netagte and PFsense world and have been learning a ton.

      I currently have my Netgate 5100 behind the ATT gateway in IP passthrough mode.

      My ATT gateway is at default ip 192.168.1.254, and I have been seeing it show up on my WAN interface firewall logs.

      WAN 	Block private networks from WAN block 192.168/16 (12004) 192.168.1.254	224.0.0.1	IGMP 
      
      WAN 	Block private networks from WAN block 192.168/16 (12004) 	192.168.1.254:1377	192.168.1.255:137	UDP 
      

      Is this something I should be concerned with? What is recommended to do in this situation?

      TIA!

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        SteveITS Galactic Empire @code4food23
        last edited by

        @code4food23 That seems pretty common in my experience. See this for example. In the log settings you can uncheck "Log packets blocked by 'Block Private Networks' rules" and/or "Log packets matched from the default block rules in the ruleset" if desired, to clean the logs up, which is what I do.

        Pre-2.7.2/23.09: Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
        When upgrading, allow 10-15 minutes to restart, or more depending on packages and device speed.
        Upvote ๐Ÿ‘ helpful posts!

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          code4food23 @SteveITS
          last edited by

          @steveits Thanks alot! Didnt know I had the option to uncheck those. Would you also uncheck the logging of 'Block Bogon Networks' rules?

          Also, so my ISPs gateway showing up on the WAN side isn't something I need to be worried about? Is this because from the POV of the firewall their router is on the WAN side?

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            SteveITS Galactic Empire @code4food23
            last edited by

            @code4food23 Your router is on the AT&T router's LAN. You can actually still browse to its IP. The bogon list is unallocated IPs so that's a bit different, it's up to you whether to log that. Those are probably more rare. Usually when I set up a router I turn off the default blocks as it tends to fill the logs, and turn them on when I need to track down a connection error.

            Pre-2.7.2/23.09: Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
            When upgrading, allow 10-15 minutes to restart, or more depending on packages and device speed.
            Upvote ๐Ÿ‘ helpful posts!

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            • C
              code4food23 @SteveITS
              last edited by

              @steveits said in Strange behavior with ATT gateway in IP Passthrough:

              Your router is on the AT&T router's LAN.

              So is this why it was appearing on the WAN interface logs?

              & Thanks for the suggestion, my firewall logs sure looks so much cleaner, and its mind blowing to see how many IPs are getting blocked by pfBlocker

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