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    GRE packets dropped when accessing a VPN

    Scheduled Pinned Locked Moved Firewalling
    16 Posts 2 Posters 5.0k Views
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    • J
      jmgc
      last edited by

      Hi there,

      I'm sorry about misunderstanding your point about the modem. I don't know why I setup my mind on a dialing modem.

      How can I check up either my modem is in rounting or bridge mode? This is the first time I'm dealing with this issue.

      Joe

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      • M
        Metu69salemi
        last edited by

        when i sayed dialing?
        *dsl / cable - modems do exists also

        Try to search from google with your modems/routers name and model and add username/password
        -OR-
        you can try this

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        • J
          jmgc
          last edited by

          I can sign in and check the settings of my modem. Is that what you mean?

          Joe

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          • M
            Metu69salemi
            last edited by

            Is your setup bridging or routing?

            1 Reply Last reply Reply Quote 0
            • J
              jmgc
              last edited by

              It's a routing setup!!!!

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              • M
                Metu69salemi
                last edited by

                And you're having double nat with pfsense?
                so that pfsense has something like this:
                wan: 192.168.100.10 /24
                lan: 192.168.1.1 /24?

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                • J
                  jmgc
                  last edited by

                  Yes, I have

                  Lan: 192.168.1.2 / 24

                  Wan on DHCP: range 192.168.15.x / 24

                  As extra information, I'm doing NAt on port 80 and forwarding to one IP in the subnet.

                  Joe

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                  • M
                    Metu69salemi
                    last edited by

                    Well,

                    GRE is part of ip, but not tcp or udp, it's not a port which you can forward to, unless you're having separate support to it.
                    If it is possible by anymeans, change to bridging configuration and then GRE should work a bit better

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                    • J
                      jmgc
                      last edited by

                      Got ya!!!,

                      I wouldn't like to switch to brigde mode since I can lose some of the advantages over routing. Meanwhile I'm accessing the VPN from a pc out of the firewall.

                      Now, what is the GRE tunneling on Interfaces used for?

                      Thanks in advanced again for all your time and help.

                      Joe

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                      • M
                        Metu69salemi
                        last edited by

                        GRE on wiki

                        May i ask what is so big advantage to route in a modem vs firewall?

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                        • J
                          jmgc
                          last edited by

                          I focused on the advantage of routing over bridging in a firewall. I can not tell on the modem. I've bin trying to find where I can switch my modem to the bridge mode without luck. I'll check GRE on wiki. Any suggestion from you is valuable.

                          Joe

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                          • M
                            Metu69salemi
                            last edited by

                            I only tried to suggest that, change your modem to bridging and use only firewall in routing mode.
                            that ease a bit to troubleshoot gre and other things also.

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