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    OpenVPN for 2 LAN sites fail to connect each other

    Scheduled Pinned Locked Moved OpenVPN
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    • GruensFroeschliG
      GruensFroeschli
      last edited by

      Fix your configs:

      May 1 18:37:38    openvpn[2777]: WARNING: 'comp-lzo' is present in remote config but missing in local config, remote='comp-lzo'
      May 1 18:37:38    openvpn[2777]: WARNING: 'link-mtu' is used inconsistently, local='link-mtu 1573', remote='link-mtu 1574'

      You have a configuration missmatch on both sides.

      Also you need to add routes that point to the other side of the tunnel for the remote subnet.
      (The field "remote network")

      We do what we must, because we can.

      Asking questions the smart way: http://www.catb.org/esr/faqs/smart-questions.html

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      • Y
        yce_kelvin
        last edited by

        Hi, Gruens Froeschli,
        Thanks for your reply. I try to make the comp-lzo both site. Now the new log is:
        May 1 19:22:18 openvpn[18083]: Initialization Sequence Completed
        May 1 19:22:17 openvpn[18083]: /etc/rc.filter_configure tap0 1500 1574 10.8.0.2 255.255.255.0 init
        May 1 19:22:17 openvpn[18083]: /sbin/ifconfig tap0 10.8.0.2 netmask 255.255.255.0 mtu 1500 up
        May 1 19:22:17 openvpn[18083]: TUN/TAP device /dev/tap0 opened
        May 1 19:22:16 openvpn[18083]: [VPN-SERVER] Peer Connection Initiated with 60.54.233.221:1194
        May 1 19:22:08 openvpn[18083]: UDPv4 link remote: 60.54.233.221:1194
        May 1 19:22:08 openvpn[18083]: UDPv4 link local (bound): [undef]:1194
        May 1 19:22:08 openvpn[18082]: LZO compression initialized
        May 1 19:22:08 openvpn[18082]: WARNING: file '/var/etc/openvpn_client0.key' is group or others accessible
        May 1 19:22:08 openvpn[18082]: WARNING: using –pull/--client and --ifconfig together is probably not what you want
        May 1 19:22:08 openvpn[18082]: OpenVPN 2.0.6 i386-portbld-freebsd6.2 [SSL] [LZO] built on Sep 13 2007
        May 1 19:22:06 openvpn[17332]: SIGTERM[hard,] received, process exiting
        May 1 19:22:06 openvpn[17332]: /etc/rc.filter_configure tap0 1500 1574 10.8.0.2 255.255.255.0 init
        May 1 19:22:06 openvpn[17332]: event_wait : Interrupted system call (code=4)

        PC at LAN A: 10.8.0.3 connected. Pfsense at LAN A: 10.8.0.2 connected.
        PC at LAN B: 10.8.0.4 connected, PC at LAN B: 10.8.0.5 connected, Pfsense at LAN B:  connected

        I use dev tap and udp. I try to ping, still fail to ping each other…

        Please help...  :-[

        IT Computer System - I love it. Hope that every day is a happy day and the world is peace and green environment always.

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        • Y
          yce_kelvin
          last edited by

          They can connected but cannot be ping.. It is i use wrong method? Anyone got tutorial link? I try to google but it seem not much result and the link of tutorial provided in this forum seem broken…

          IT Computer System - I love it. Hope that every day is a happy day and the world is peace and green environment always.

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          • GruensFroeschliG
            GruensFroeschli
            last edited by

            PC at LAN A: 10.8.0.3 connected. Pfsense at LAN A: 10.8.0.2 connected.
            PC at LAN B: 10.8.0.4 connected, PC at LAN B: 10.8.0.5 connected, Pfsense at LAN B:  connected

            This is quite confusing.
            What are you trying to achieve?

            Can you draw a diagramm of your networks and which ip range you have where?
            Also can you post screenshots of your config from the client and from the server?

            We do what we must, because we can.

            Asking questions the smart way: http://www.catb.org/esr/faqs/smart-questions.html

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            • Y
              yce_kelvin
              last edited by

              Hi, This is the network..

              I hope to integrate OpenVPN to make tunnel for LAN A and LAN B so there can share files, play games together.

              PFSense Box 1 Configuration:
              Protocol: UDP
              Dynamic IP (Thick)
              Local Port:1194
              Address Pool: 10.8.0.0/24
              Remote Network: 192.168.1.1/24
              Client to Client VPN: (Thick)
              Authenication method: PKI
              CA: INserted
              Server CA: INserted
              Server Key: INserted
              DH: Inserted
              DHCP-OPT: DNS Domain Name: (Use domain which i host at dyndns.com)
              DHCP-OPT: DNS Server: 202.188.0.133 (DNS Server ISP)
              custom option:
              ;local 60.xx.xxx.xxx
              ;dev tap
              ;duplicate-cn
              ;comp-Izo
              ;max-clients 150
              ;persist-tun
              ;push "dhcp-option DNS 202.188.0.133"
              ;push "dhcp-option DNS 202.188.1.5"

              –----------
              PFSense Box 2 (Client)
              Configuration
              Protocol: UDP
              Server address: 60.xx.xxx.xxx
              Server port:1194
              Interface IP:192.168.1.1/24
              Proxy port:3128
              Cryptography:BF-CBC(128Bit)
              Authentication method:PKI
              CA certificate: Inserted
              Client certificate: Inserted
              Client key: Inserted
              Custom options:
              ;dev tap;persist-key;persist-tun;ns-cert-type server;comp-lzo;remote 60.xx.xxx.xxx 1194

              Result
              Both PFSense show  Initialization Sequence Completed

              But i cannot ping in PC 1, PC2 nor PC3 to each other

              So, I install Window OpenVPN GUI
              and configure the file:
              –----------

              Client at Window XP Config log files:
              client
              dev tap
              proto udp
              remote 60.xx.xxx.xxx
              resolv-retry infinite
              nobind
              persist-key
              persist-tun
              ca ca.crt
              cert client1.crt
              key client1.key
              ns-cert-type server
              comp-lzo
              verb 3

              Result:
              Client success connected BUT if both side more than 1 PC connect then cannot get link together...

              It is i use wrong method on construct the network or insert wrong code??

              Thanks

              IT Computer System - I love it. Hope that every day is a happy day and the world is peace and green environment always.

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              • GruensFroeschliG
                GruensFroeschli
                last edited by

                I suggest you start reading on http://openvpn.net/howto

                I see that you only want to connect two LAN's together.
                For this dont use a PKI but use a shared key setup.
                –> resetup your openVPN connection.

                The custom options you added are mostly useless since they are generated by pfSense per default or ther eis a checkbox to enable them

                For your test with a windows XP client... you cannot connect multiple clients with the same certificate.

                We do what we must, because we can.

                Asking questions the smart way: http://www.catb.org/esr/faqs/smart-questions.html

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                • Y
                  yce_kelvin
                  last edited by

                  Hi Mr.GruensFroeschli
                  Really thanks for your suggestion. I am noob on this.. Thanks, I will redo again and once got result i post here d.

                  Thanks so much,

                  Kelvin

                  IT Computer System - I love it. Hope that every day is a happy day and the world is peace and green environment always.

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                  • Y
                    yce_kelvin
                    last edited by

                    Hi,
                    Mr.GruensFroeschli,
                    Now i connect like this:

                    Client LAN A (5PC) 192.168.10.2 to 5 <-> Switch <-> PFSense Box A (192.168.10.100) <-> ADSL Modem  –-(ISP STATIC Line A)  ISP --- ISP (ISP Dynamic Line B) <-> ADSL Modem <-> PFSense Box B (192.168.1.1) <-> Switch <-> Client LAN B (10PC) 192.168.1.2 to 11

                    PF Sense Box A OpenVPN - Configuration:
                    Protocol: UDP
                    Dynamic IP: (YES)
                    Local Port: 1194
                    Address Pool: 10.8.0.0/24
                    Local Network: 192.168.10.100/24
                    Remote Network: 192.168.1.1/24
                    Client-to-Client VPN: (YEs)
                    Cryptography: BF-CBC (128Bit)
                    Authentication method: PKI
                    CA inserted
                    Server CA Inserted
                    Server Key Inserted
                    DH Parameters Inserted
                    DHCP-Opt: DNS Server: 202.188.0.133;202.188.1.5
                    LZO: (Yes)
                    Custom Option: ;dev tap;keepalive 10 120;verb 3;duplicate-cn;client-to-client;max-clients 150;user nobody;group nobody

                    ===

                    PFsense Box B OpenVPN Configuration"
                    Protocol: UDP
                    Server address: xxx.dyndns.org
                    Server port:1194
                    Proxy port:3128
                    Cryptography:BF-CBC(128Bit)
                    Authentication method:PKI
                    CA Inserted
                    Client CA Inserted
                    CLient Key Inserted
                    LZO compression
                    Custom options: ;dev tap;resolv-retry infinite;persist-key;persist-tun;ns-cert-type server;

                    After setup the log message show: May 7 21:23:30 openvpn[38053]: Initialization Sequence Completed

                    Both server and client get same message,

                    After connected, the server show the following log:

                    May 7 21:23:30 openvpn[1911]: VPN-CLIENT1/124.13.87.49:1195 MULTI: Learn: 00:bd:e0:0d:41:00 -> VPN-CLIENT1/124.13.87.49:1195
                    May 7 21:23:30 openvpn[1911]: VPN-CLIENT1/124.13.87.49:1195 SENT CONTROL [VPN-CLIENT1]: 'PUSH_REPLY,route 192.168.10.100 255.255.255.0,dhcp-option DNS 202.188.0.133,dhcp-option DNS 202.188.1.5,route-gateway 10.8.0.1,ping 10,ping-restart 120,ifconfig 10.8.0.2 255.255.255.0' (status=1)
                    May 7 21:23:30 openvpn[1911]: VPN-CLIENT1/124.13.87.49:1195 PUSH: Received control message: 'PUSH_REQUEST'

                    Problem Now: PFSense box connected but the client machine LAN A to LAN B are not connected.. It is i less some step??

                    IT Computer System - I love it. Hope that every day is a happy day and the world is peace and green environment always.

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                    • Y
                      yce_kelvin
                      last edited by

                      Client Site: -
                      Share Key Config

                      IT Computer System - I love it. Hope that every day is a happy day and the world is peace and green environment always.

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                      • Y
                        yce_kelvin
                        last edited by

                        This is the server share key conf

                        Note: 192.168.10.0/24 is server site
                        192.168.1.0/24 is client site
                        192.168.100.0/24 is vpn tunnel subnet ….

                        IT Computer System - I love it. Hope that every day is a happy day and the world is peace and green environment always.

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                        • GruensFroeschliG
                          GruensFroeschli
                          last edited by

                          Follow-up-note:
                          We where able to solve the problem per MSN.
                          yce_kelvin forgot to mention that the server had more than one WAN.

                          http://forum.pfsense.org/index.php/topic,7001.0.html

                          The rule on the LAN had as gateway a loadbalancing-pool.
                          The problem was solved through adding another rule with as destination 192.168.1.0/24 (subnet on the client side) and gateway * above the rule with as gateway Loadbalancer. (see screenshot posted by yce_kelvin below)

                          We do what we must, because we can.

                          Asking questions the smart way: http://www.catb.org/esr/faqs/smart-questions.html

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                          • Y
                            yce_kelvin
                            last edited by

                            The Firewall configuration:

                            IT Computer System - I love it. Hope that every day is a happy day and the world is peace and green environment always.

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                            • Y
                              yce_kelvin
                              last edited by

                              Arrangement of rules:

                              IT Computer System - I love it. Hope that every day is a happy day and the world is peace and green environment always.

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                              • Y
                                yce_kelvin
                                last edited by

                                Site to site connection with share key is okay but cannot bridging.
                                Try to do another site-to-site bridging. If some one have experience before kindly share ur exp here. Anyone success before?

                                IT Computer System - I love it. Hope that every day is a happy day and the world is peace and green environment always.

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                                • Y
                                  yce_kelvin
                                  last edited by

                                  Anyone success with openvpn tunnel and lan game within 2 lan's client pc?

                                  IT Computer System - I love it. Hope that every day is a happy day and the world is peace and green environment always.

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                                  • GruensFroeschliG
                                    GruensFroeschli
                                    last edited by

                                    Nobody will ever be able to use UDP broadcast based LAN games in a routed scenario.

                                    You NEED a bridge, or else a UDP proxy like this one: http://www.vttoth.com/tunnel.htm

                                    In about 3 weeks or so i will have a bit more time. If i'm not too busy with other projects i think i'll try to get this running since i'm interrested in this too.

                                    We do what we must, because we can.

                                    Asking questions the smart way: http://www.catb.org/esr/faqs/smart-questions.html

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                                    • Y
                                      yce_kelvin
                                      last edited by

                                      Bridge mode can successful for 2 LAN sites in a "normal" condition. "Normal" mean a normal office or group network. If those client is "cloned" then will meet the problem with MAC address issue. This is because if the PCs are cloned, that mean the MAC address also will duplicated.

                                      Bridge mode i use is form a pfsense as openvpn server and other client pc install openvpn with tap-adaptor. Client can be successful connected but need a different MAC address of TAP-adaptor. I m try to come out a script that can make the TAP-adaptor MAC address can change according to IP address.

                                      But, what i hope that is 2 site PF sense can form bridge mode and no need to do any setting or installation to the client PC.. It is possible.

                                      I know that PFsense routed VPN is not work with what i want.. Anyway i hope that i can make a successful case under GruensFroeschli help :)

                                      or someone interest on it can study together. My network knowledge is level 1 only ^^

                                      IT Computer System - I love it. Hope that every day is a happy day and the world is peace and green environment always.

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