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    OpenVPN for 2 LAN sites fail to connect each other

    Scheduled Pinned Locked Moved OpenVPN
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    • Y
      yce_kelvin
      last edited by

      This is another log from client:
      May 1 18:53:01 openvpn[12615]: Initialization Sequence Completed
      May 1 18:53:00 openvpn[12615]: /etc/rc.filter_configure tap0 1500 1573 10.8.0.2 255.255.255.0 init
      May 1 18:53:00 openvpn[12615]: /sbin/ifconfig tap0 10.8.0.2 netmask 255.255.255.0 mtu 1500 up
      May 1 18:53:00 openvpn[12615]: TUN/TAP device /dev/tap0 opened
      May 1 18:52:59 openvpn[12615]: [VPN-SERVER] Peer Connection Initiated with 60.54.233.221:1194
      May 1 18:52:59 openvpn[12615]: WARNING: 'comp-lzo' is present in remote config but missing in local config, remote='comp-lzo'
      May 1 18:52:59 openvpn[12615]: WARNING: 'link-mtu' is used inconsistently, local='link-mtu 1573', remote='link-mtu 1574'
      May 1 18:52:52 openvpn[12615]: UDPv4 link remote: 60.54.233.221:1194
      May 1 18:52:52 openvpn[12615]: UDPv4 link local (bound): [undef]:1194
      May 1 18:52:52 openvpn[12614]: WARNING: file '/var/etc/openvpn_client0.key' is group or others accessible
      May 1 18:52:52 openvpn[12614]: WARNING: using –pull/--client and --ifconfig together is probably not what you want
      May 1 18:52:52 openvpn[12614]: OpenVPN 2.0.6 i386-portbld-freebsd6.2 [SSL] [LZO] built on Sep 13 2007

      It seem Connected with 10.8.0.2 but why those client in LAN cannot "see" each other?

      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

        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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