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    block traffic between interfaces [Solved]

    Scheduled Pinned Locked Moved Firewalling
    27 Posts 4 Posters 3.6k Views
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    • kiokomanK
      kiokoman LAYER 8
      last edited by kiokoman

      one way to do this:
      Create an alias for the RFC1918 network ranges. Call it private_networks and include the following ranges:

      10.0.0.0/8
      172.16.0.0/12
      192.168.0.0/16

      create a firewall rule on top of everything on the LAN and on the OPT1 tab with block and destination "Single host or alias" > private_network

      ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
      Please do not use chat/PM to ask for help
      we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
      Don't forget to Upvote with the 👍 button for any post you find to be helpful.

      1 Reply Last reply Reply Quote 0
      • M
        mass
        last edited by

        Created rule as per your sugestions but still no luck

        1 Reply Last reply Reply Quote 0
        • M
          mass
          last edited by

          Seems its working but lost internet connectivty for both networks

          1 Reply Last reply Reply Quote 0
          • kiokomanK
            kiokoman LAYER 8
            last edited by

            do you have a public ip on your wan or is it behind another modem/router with 192.168.x.x network?

            ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
            Please do not use chat/PM to ask for help
            we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
            Don't forget to Upvote with the 👍 button for any post you find to be helpful.

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            • M
              mass
              last edited by

              Its connected through router there is no Public IP.

              Now its working after changing the rule order for both the networks.
              but not able ping own gateway ips as well.

              1 Reply Last reply Reply Quote 0
              • kiokomanK
                kiokoman LAYER 8
                last edited by

                modify the alias to be more specific, put inside only the network you have for the LAN and for the OPT1 interface

                ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
                Please do not use chat/PM to ask for help
                we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
                Don't forget to Upvote with the 👍 button for any post you find to be helpful.

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                • M
                  mass
                  last edited by

                  bf2cc1ab-8778-422a-b735-860798179c5c-image.png

                  this is the rule which i have created as per your advice.

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                  • M
                    mass
                    last edited by

                    967174df-1774-4d01-9063-280b84ed46bd-image.png

                    Alias Internal_default_Addr

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                    • M
                      mass
                      last edited by mass

                      But not able to ping own gateway IP.
                      Ex: if my lan network is 192.168.1.1/24 i am not able to ping 192.168.1.1 from the same notwork.

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                      • kiokomanK
                        kiokoman LAYER 8
                        last edited by kiokoman

                        what addresses do you have in the wan, lan and opt1 interfaces?
                        another way to do that is to make a block rule with destination "OPT1 net" on the LAN tab and one block rule with destination "LAN net" on the OPT1 tab

                        ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
                        Please do not use chat/PM to ask for help
                        we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
                        Don't forget to Upvote with the 👍 button for any post you find to be helpful.

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                        • M
                          mass
                          last edited by

                          WAN Configured as DHCP, WAN IP is 192.168.0.8/24.
                          LAN Network : 192.168.1.1/24
                          OPT1 : 192.168.100.1/24

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                          • kiokomanK
                            kiokoman LAYER 8
                            last edited by kiokoman

                            maybe it's easier for you: another way to do that is to make a block rule with destination "OPT1 net" on the LAN tab and one block rule with destination "LAN net" on the OPT1 tab

                            ̿' ̿'\̵͇̿̿\з=(◕_◕)=ε/̵͇̿̿/'̿'̿ ̿
                            Please do not use chat/PM to ask for help
                            we must focus on silencing this @guest character. we must make up lies and alter the copyrights !
                            Don't forget to Upvote with the 👍 button for any post you find to be helpful.

                            M 2 Replies Last reply Reply Quote 0
                            • M
                              mass
                              last edited by

                              Ok Will check.

                              What if i want to block all ports between these two networks and allow a specific port for a specific service?

                              Ex : Assume my ftp server is in LAN network and i want to allow only that ftp server with ftp port for OPT1 network . and all other ports should be blocked.

                              noplanN 1 Reply Last reply Reply Quote 0
                              • M
                                mass @kiokoman
                                last edited by

                                This post is deleted!
                                1 Reply Last reply Reply Quote 0
                                • noplanN
                                  noplan @mass
                                  last edited by

                                  @mass said in block traffic between interfaces:

                                  y ftp server is in LAN network and i want to allow only that ftp server with ftp port

                                  for starters set an allow rule for the IP or the alias + port of your ftp server
                                  in front of your block rule ...

                                  rules are runnin top to bottom

                                  brNP

                                  M 1 Reply Last reply Reply Quote 0
                                  • M
                                    mass @noplan
                                    last edited by

                                    @noplan said in block traffic between interfaces:

                                    for starters set an allow rule for the IP or the alias + port of your ftp server
                                    in front of your block rule ...
                                    rules are runnin top to bottom
                                    brNP

                                    Ok

                                    1 Reply Last reply Reply Quote 0
                                    • M
                                      mass @kiokoman
                                      last edited by

                                      @kiokoman said in block traffic between interfaces:

                                      maybe it's easier for you: another way to do that is to make a block rule with destination "OPT1 net" on the LAN tab and one block rule with destination "LAN net" on the OPT1 tab

                                      Yes Its working ,
                                      Thanks a lot👍

                                      noplanN 1 Reply Last reply Reply Quote 0
                                      • noplanN
                                        noplan @mass
                                        last edited by

                                        @mass

                                        ftp workin to ?
                                        brNP

                                        M 1 Reply Last reply Reply Quote 0
                                        • M
                                          mass @noplan
                                          last edited by

                                          @noplan said in block traffic between interfaces:

                                          ftp workin to ?
                                          brNP

                                          Yes Its Working
                                          Thanks.....

                                          noplanN 1 Reply Last reply Reply Quote 0
                                          • noplanN
                                            noplan @mass
                                            last edited by

                                            @mass
                                            please mark topic as solved

                                            M 1 Reply Last reply Reply Quote 0
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