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    Configuring openvpn server and client

    Scheduled Pinned Locked Moved OpenVPN
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    • J
      jerryxLinuX
      last edited by

      sorry for the wrong update , client can access the server but server is not responding to client .
      what might be the issue .
      while trying ping from client its success ,
      while trying ping from server to client it fails

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      • johnpozJ
        johnpoz LAYER 8 Global Moderator
        last edited by

        firewall on client is quite often blocking…

        An intelligent man is sometimes forced to be drunk to spend time with his fools
        If you get confused: Listen to the Music Play
        Please don't Chat/PM me for help, unless mod related
        SG-4860 24.11 | Lab VMs 2.8, 24.11

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        • J
          jerryxLinuX
          last edited by

          Still same problem , server cant able to access client
          checked firewall i have made rules same as server on client.
          any configuration for firewall rules do you have

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          • J
            jerryxLinuX
            last edited by

            Firewall/Rules
            Tab OpenVPN
            Create rule: pass, any, any, any

            i gave all but still now no luck

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            • D
              doktornotor Banned
              last edited by

              Which part of "firewall on client" was confusing? Most importantly - there are firewall logs, use them!!!

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              • J
                jerryxLinuX
                last edited by

                how to check firewall log?
                status–>systemlogs-->firewall tab. is it so : i have found oly tcp are blocked in my client Ip varies not the server IP is blocked in there.

                in server config
                what to mention in advanced option
                push "route server.o subnet" ; route client.o subnet;
                is this the correct way ? why we are doing this?
                in my case
                eg. push "route"192.168.114.0 255.255.255.0";route 192.168.140.0 255.255.255.0

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                • johnpozJ
                  johnpoz LAYER 8 Global Moderator
                  last edited by

                  Dude.. The CLIENT firewall… Why would that be in logs on pfsense?

                  What OS is your client?

                  An intelligent man is sometimes forced to be drunk to spend time with his fools
                  If you get confused: Listen to the Music Play
                  Please don't Chat/PM me for help, unless mod related
                  SG-4860 24.11 | Lab VMs 2.8, 24.11

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                  • J
                    jerryxLinuX
                    last edited by

                    the client firewall is also pfsense . i am trying to communicate b/w two pfsense.
                    or i mistook your question

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                    • johnpozJ
                      johnpoz LAYER 8 Global Moderator
                      last edited by

                      So where did you state that?  What IP are you trying to ping?  An IP on the network in your site to site connection?  Or the pfsense client vpn IP, or its lan or its wan??  What?

                      Did you create a peer to peer or a remote access on the server pfsense?  What networks do you have at each site??

                      edit:  Dude while I don't normally mind PMs with questions, etc..  Post your stuff in this thread… And what networks are on each side and what is the tunnel network..  Who exactly are you trying to ping..  These are basic questions that we need to know if you want any sort of help..

                      An intelligent man is sometimes forced to be drunk to spend time with his fools
                      If you get confused: Listen to the Music Play
                      Please don't Chat/PM me for help, unless mod related
                      SG-4860 24.11 | Lab VMs 2.8, 24.11

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                      • J
                        jerryxLinuX
                        last edited by

                        peer to peer ssl/tls
                        my server.conf

                        dev ovpns2
                        verb 1
                        dev-type tun
                        tun-ipv6
                        dev-node /dev/tun2
                        writepid /var/run/openvpn_server2.pid
                        #user nobody
                        #group nobody
                        script-security 3
                        daemon
                        keepalive 10 60
                        ping-timer-rem
                        persist-tun
                        persist-key
                        proto udp
                        cipher AES-128-CBC
                        auth SHA256
                        up /usr/local/sbin/ovpn-linkup
                        down /usr/local/sbin/ovpn-linkdown
                        local xxxx.xxx.xxx.xxx
                        tls-server
                        server 10.0.8.0 255.255.255.0
                        client-config-dir /var/etc/openvpn-csc
                        ifconfig 10.0.8.1 10.0.8.2
                        tls-verify "/usr/local/sbin/ovpn_auth_verify tls 'cantonpfs' 1 "
                        lport 1194
                        management /var/etc/openvpn/server2.sock unix
                        push "route 192.168.114.0 255.255.255.0"
                        ca /var/etc/openvpn/server2.ca
                        cert /var/etc/openvpn/server2.cert
                        key /var/etc/openvpn/server2.key
                        dh /etc/dh-parameters.1024
                        tls-auth /var/etc/openvpn/server2.tls-auth 0
                        comp-lzo adaptive
                        persist-remote-ip
                        float
                        push "route 192.168.114.0 255.255.255.0"
                        route 192.168.140.0 255.255.255.0

                        client.conf

                        dev ovpnc1
                        verb 1
                        dev-type tun
                        tun-ipv6
                        dev-node /dev/tun1
                        writepid /var/run/openvpn_client1.pid
                        #user nobody
                        #group nobody
                        script-security 3
                        daemon
                        keepalive 10 60
                        ping-timer-rem
                        persist-tun
                        persist-key
                        proto udp
                        cipher AES-128-CBC
                        auth SHA256
                        up /usr/local/sbin/ovpn-linkup
                        down /usr/local/sbin/ovpn-linkdown
                        local 10.1.10.11
                        tls-client
                        client
                        lport 0
                        management /var/etc/openvpn/client1.sock unix
                        remote xxx.xxxx.xxxx.xxxx 1194
                        ifconfig 10.0.8.2 10.0.8.1
                        ca /var/etc/openvpn/client1.ca
                        cert /var/etc/openvpn/client1.cert
                        key /var/etc/openvpn/client1.key
                        tls-auth /var/etc/openvpn/client1.tls-auth 1
                        comp-lzo adaptive
                        resolv-retry infinite

                        so my server ip is : 192.168.114.254
                        my client ip is : 192.168.140.254

                        i can ping from client(140.254) to server(114.254) , but not from server(114.254) to client(140.254)

                        any other info needed , sorry for giving less details

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                        • johnpozJ
                          johnpoz LAYER 8 Global Moderator
                          last edited by

                          please just post up a gui shot of your client config and server config..  Your not editing the .conf manually are you?

                          What do you have in your outbound nat on the client?  On the server?  What is the routing table on pfsense of the client look like and on the server side..  On the client you should be putting in what networks are remote..

                          clientvpnsettings.png
                          clientvpnsettings.png_thumb

                          An intelligent man is sometimes forced to be drunk to spend time with his fools
                          If you get confused: Listen to the Music Play
                          Please don't Chat/PM me for help, unless mod related
                          SG-4860 24.11 | Lab VMs 2.8, 24.11

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                          • J
                            jerryxLinuX
                            last edited by

                            herewith i have attached all the config screenshots

                            server.conf1.jpg
                            server.conf1.jpg_thumb
                            server.conf2.jpg
                            server.conf2.jpg_thumb
                            clent.conf1.jpg
                            clent.conf1.jpg_thumb
                            client.conf2.jpg
                            client.conf2.jpg_thumb
                            ![clentspecific overrides.jpg](/public/imported_attachments/1/clentspecific overrides.jpg)
                            ![clentspecific overrides.jpg_thumb](/public/imported_attachments/1/clentspecific overrides.jpg_thumb)
                            server.nat.outbound.jpg
                            server.nat.outbound.jpg_thumb
                            client.nat.outbound.jpg
                            client.nat.outbound.jpg_thumb

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                            • johnpozJ
                              johnpoz LAYER 8 Global Moderator
                              last edited by

                              so your not natting anything through your vpn interfaces.. Fine since your just all local networks..  But you don't have anything in your remote or local networks  You don't normally have to push routes.. Unless your doing something specific odd..

                              Where are you routing tables from pfsense?

                              An intelligent man is sometimes forced to be drunk to spend time with his fools
                              If you get confused: Listen to the Music Play
                              Please don't Chat/PM me for help, unless mod related
                              SG-4860 24.11 | Lab VMs 2.8, 24.11

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                              • J
                                jerryxLinuX
                                last edited by

                                Routing table means? how to get that?

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                                • J
                                  jerryxLinuX
                                  last edited by

                                  I think you are asking about this

                                  routing.jpg
                                  routing.jpg_thumb

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                                  • J
                                    jerryxLinuX
                                    last edited by

                                    hey success man , i just made an entry in client specific overrides as " iroute 192.168.140.0 255.255.255.0" my client ip . it was success.
                                    Thanks dude.
                                    i have another question how to add multiple client in the server , do i want to continue my post in same thread or want to raise a new thread

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                                    • johnpozJ
                                      johnpoz LAYER 8 Global Moderator
                                      last edited by

                                      no that is not your routing table…  under diagnostics routes, it will list out your routing table.

                                      Why should you have to put it in overrides if you would just setup the server and client correctly in the first place?  With the local and remote network fields.

                                      An intelligent man is sometimes forced to be drunk to spend time with his fools
                                      If you get confused: Listen to the Music Play
                                      Please don't Chat/PM me for help, unless mod related
                                      SG-4860 24.11 | Lab VMs 2.8, 24.11

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                                      • D
                                        divsys
                                        last edited by

                                        SSL/TLS still needs an iroute via the CSC section for each client.

                                        Much easier in 2.2.5 than it used to be, but that iroute is often a last Gotcha in S2S links.

                                        -jfp

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                                        • J
                                          jerryxLinuX
                                          last edited by

                                          ok then its necessary right.

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                                          • D
                                            divsys
                                            last edited by

                                            Definitely necessary, in the current pfSense versions, you simply enter into the server screen a comma delimited list of all the subnet "LANs" on all the client OpenVPN's you want to reach.

                                            Then in the Client Specific Overrides section you make an entry for each client and list the LAN subnets that client will use.

                                            It seems a little convoluted for a single S2S connection, but it lets you setup a single server and easily connect many (I have a link that uses 20+) clients each with more than one subnet.

                                            The only hitch is that the client subnets can't overlap -  takes a little planning, but welcome to networking  ;)

                                            -jfp

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