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    Can ping server but not rest of network.

    Scheduled Pinned Locked Moved OpenVPN
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    • Cry HavokC
      Cry Havok
      last edited by

      I can't see an obvious problem.  I'd check things like firewall settings (on both ends), drop a packet sniffer in to see if the packets are making it through pfSense (ISTR that tcpdump is installed by default on pfSense) and check to see if you can ping from the 192.168.1.0/24 network to the 192.168.2.0/24 network.

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      • T
        Thibaut
        last edited by

        Arf ….

        Ok thanks for your help ! A return to work on Monday, so see you soon !

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        • T
          Thibaut
          last edited by

          Hello !

          So, i can ping 192.168.2.0/24 address from 192.168.1.0/24 subnet. But from 10.187.88.0/22, i ping 192.168.1.254 but not the rest of the 192.168.1.0/24 subnet :(

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          • Cry HavokC
            Cry Havok
            last edited by

            I think a diagram is required to make that last post make sense.  You're implying that you're trying to ping from outside the pfSense host, on the WAN, to the LAN.

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            • T
              Thibaut
              last edited by

              PC1 192.168.2.6 (tun0) –-------------- 10.187.88.8 (WAN) pfSense 192.168.1.254 (LAN) ------------------ 192.168.1.245 (LAN) PC2

              pfSense have also 192.168.2.5 for the VPN Server.

              ping from PC2 to PC1 work !
              ping from PC1 to PC2 doesn't work !

              and i want to access to LAN since WAN with VPN server

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              • Cry HavokC
                Cry Havok
                last edited by

                Right, then look at the firewall settings on PC2.  You may find that it's blocking ping requests.

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                • T
                  Thibaut
                  last edited by

                  thanks for your help

                  But my firewall on PC2 is disable …

                  I can see the request from 192.168.2.6 to 192.168.1.245 with tcpdump of pfSense, but not the reply.

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                  • Cry HavokC
                    Cry Havok
                    last edited by

                    Then your problem is with the host 192.168.1.245.  Check that it's default gateway is correct, check to see that it's receiving the packets, do all the basic troubleshooting steps on that host.

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                    • T
                      Thibaut
                      last edited by

                      The problem doesn't become on that host because there is the same problem with an other PC with an other IP address…

                      thx for your help ...

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                      • Cry HavokC
                        Cry Havok
                        last edited by

                        Well, start there.  If you're seeing packets enter the LAN but not return to pfSense then something you've posted here is obviously wrong.  The three possibilities are:

                        1. The hosts don't use the pfSense host as their default gateway
                        2. The static routes on the LAN clients are wrong
                        3. They run firewalls

                        Eliminate those one at a time, what's left is the only possibility.

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                        • T
                          Thibaut
                          last edited by

                          1. The static routes on the LAN clients

                          What's that ?  ???

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                          • Cry HavokC
                            Cry Havok
                            last edited by

                            Static routes tell clients how to reach networks that are attached to something other than your default gateway.

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                            • B
                              BrianBonnell
                              last edited by

                              I had this same problem, but when I added all my hosts that I wanted the VPN clients to be able to contact to the DNS Forwarder list, I was able to ping and connect to the LAN side from the VPN Client side, when i removed those entries..I also lost my connectivity to those LAN elements. Not sure why but it seem that the host you want to be able to access via the VPN have to be listed in the DNS Forwarder also. Bug? not sure, but adding them fixed my issue.

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                              • T
                                Thibaut
                                last edited by

                                Hi and thanks for your help !

                                I represent my configuration, because i'm not able to solve the probleme :

                                VPN Server configuration file :

                                writepid /var/run/openvpn_server0.pid
                                #user nobody
                                #group nobody
                                daemon
                                keepalive 10 60
                                ping-timer-rem
                                persist-tun
                                persist-key
                                dev tun
                                proto tcp-server
                                cipher BF-CBC
                                up /etc/rc.filter_configure
                                down /etc/rc.filter_configure
                                server 192.168.2.0 255.255.255.0
                                client-config-dir /var/etc/openvpn_csc
                                push "route 192.168.1.0 255.255.255.0"
                                lport 1194
                                push "dhcp-option DISABLE-NBT"
                                ca /var/etc/openvpn_server0.ca
                                cert /var/etc/openvpn_server0.cert
                                key /var/etc/openvpn_server0.key
                                dh /var/etc/openvpn_server0.dh
                                persist-remote-ip
                                float
                                
                                

                                Client configuration file :

                                
                                client
                                dev tun
                                proto tcp
                                resolv-retry infinite
                                nobind
                                persist-key
                                persist-tun
                                ca /home/thibaut/ca.crt
                                cert /home/thibaut/client1.crt
                                key /home/thibaut/client1.key
                                verb 3
                                
                                

                                Client netstat -rn when it's connect to vpn server :

                                Destination     Passerelle      Genmask         Indic   MSS Fenêtre irtt Iface
                                192.168.2.1     192.168.2.5     255.255.255.255 UGH       0 0          0 tun0
                                192.168.2.5     0.0.0.0         255.255.255.255 UH        0 0          0 tun0
                                172.16.119.0    0.0.0.0         255.255.255.0   U         0 0          0 vmnet1
                                192.168.1.0     192.168.2.5     255.255.255.0   UG        0 0          0 tun0
                                172.16.74.0     0.0.0.0         255.255.255.0   U         0 0          0 vmnet8
                                10.187.88.0     0.0.0.0         255.255.252.0   U         0 0          0 eth0
                                169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 eth0
                                0.0.0.0         10.187.88.245   0.0.0.0         UG        0 0          0 eth0
                                
                                

                                Ping a PC with address 192.168.1.144 (report with tcpdump in pfSense) :

                                tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
                                listening on le0, link-type EN10MB (Ethernet), capture size 96 bytes
                                09:23:57.352592 STP 802.1d, Config, Flags [none], bridge-id 8000.00:1b:2f:25:3f:70.8002, length 43
                                09:23:57.725277 IP 192.168.2.6 > 192.168.1.144: ICMP echo request, id 46635, seq 7, length 64
                                09:23:58.723015 IP 192.168.2.6 > 192.168.1.144: ICMP echo request, id 46635, seq 8, length 64
                                09:23:59.408489 STP 802.1d, Config, Flags [none], bridge-id 8000.00:1b:2f:25:3f:70.8002, length 43
                                09:23:59.716733 IP 192.168.2.6 > 192.168.1.144: ICMP echo request, id 46635, seq 9, length 64
                                09:24:00.716003 IP 192.168.2.6 > 192.168.1.144: ICMP echo request, id 46635, seq 10, length 64
                                09:24:01.416434 STP 802.1d, Config, Flags [none], bridge-id 8000.00:1b:2f:25:3f:70.8002, length 43
                                09:24:01.709148 IP 192.168.2.6 > 192.168.1.144: ICMP echo request, id 46635, seq 11, length 64
                                ^C
                                8 packets captured
                                9 packets received by filter
                                0 packets dropped by kernel
                                
                                

                                ipconfig /all on my Windows PC which as 192.168.1.144 :

                                Carte Ethernet Connexion réseau sans fil:
                                
                                        Suffixe DNS propre à la connexion : valadon.lan
                                        Description . . . . . . . . . . . : NETGEAR WG111v2 54Mbps Wireless USB 2.0 Adapter
                                        Adresse physique . . . . . . . . .: 00-1B-2F-42-AE-DB
                                        DHCP activé. . . . . . . . . . . : Oui
                                        Configuration automatique activée . . . . : Oui
                                        Adresse IP. . . . . . . . . . . . : 192.168.1.144
                                        Masque de sous-réseau . . . . . . : 255.255.255.0
                                        Passerelle par défaut . . . . . . : 192.168.1.254
                                        Serveur DHCP. . . . . . . . . . . : 192.168.1.254
                                        Serveurs DNS . . . . . . . . . .  : 192.168.1.254
                                        Serveur WINS principal. . . . . . : 10.187.88.4
                                        Bail obtenu . . . . . . . . . . . : mardi 5 mai 2009 09:03:38
                                        Bail expirant . . . . . . . . . . : mardi 5 mai 2009 11:03:38
                                
                                

                                ifconfig on my linux client :

                                ath0      Link encap:Ethernet  HWaddr 00:15:af:59:60:78  
                                          UP BROADCAST MULTICAST  MTU:1500  Metric:1
                                          Packets reçus:522 erreurs:0 :0 overruns:0 frame:0
                                          TX packets:366 errors:0 dropped:0 overruns:0 carrier:0
                                          collisions:0 lg file transmission:0 
                                          Octets reçus:191752 (187.2 KB) Octets transmis:52773 (51.5 KB)
                                
                                eth0      Link encap:Ethernet  HWaddr 00:1e:8c:28:4d:9c  
                                          inet adr:10.187.91.250  Bcast:10.187.91.255  Masque:255.255.252.0
                                          adr inet6: fe80::21e:8cff:fe28:4d9c/64 Scope:Lien
                                          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
                                          Packets reçus:47532 erreurs:0 :0 overruns:0 frame:0
                                          TX packets:24031 errors:0 dropped:0 overruns:0 carrier:13
                                          collisions:0 lg file transmission:1000 
                                          Octets reçus:20305549 (19.3 MB) Octets transmis:0 (0.0 B)
                                          Mémoire:feac0000-feb00000 
                                
                                lo        Link encap:Boucle locale  
                                          inet adr:127.0.0.1  Masque:255.0.0.0
                                          adr inet6: ::1/128 Scope:Hôte
                                          UP LOOPBACK RUNNING  MTU:16436  Metric:1
                                          Packets reçus:3217 erreurs:0 :0 overruns:0 frame:0
                                          TX packets:3217 errors:0 dropped:0 overruns:0 carrier:0
                                          collisions:0 lg file transmission:0 
                                          Octets reçus:167880 (163.9 KB) Octets transmis:167880 (163.9 KB)
                                
                                tun0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
                                          inet adr:192.168.2.6  P-t-P:192.168.2.5  Masque:255.255.255.255
                                          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
                                          Packets reçus:21 erreurs:0 :0 overruns:0 frame:0
                                          TX packets:389 errors:0 dropped:0 overruns:0 carrier:0
                                          collisions:0 lg file transmission:100 
                                          Octets reçus:1194 (1.1 KB) Octets transmis:32110 (31.3 KB)
                                
                                vmnet1    Link encap:Ethernet  HWaddr 00:50:56:c0:00:01  
                                          inet adr:172.16.119.1  Bcast:172.16.119.255  Masque:255.255.255.0
                                          adr inet6: fe80::250:56ff:fec0:1/64 Scope:Lien
                                          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
                                          Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
                                          TX packets:39 errors:0 dropped:0 overruns:0 carrier:0
                                          collisions:0 lg file transmission:1000 
                                          Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)
                                
                                vmnet8    Link encap:Ethernet  HWaddr 00:50:56:c0:00:08  
                                          inet adr:172.16.74.1  Bcast:172.16.74.255  Masque:255.255.255.0
                                          adr inet6: fe80::250:56ff:fec0:8/64 Scope:Lien
                                          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
                                          Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
                                          TX packets:39 errors:0 dropped:0 overruns:0 carrier:0
                                          collisions:0 lg file transmission:1000 
                                          Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)
                                
                                wifi0     Link encap:UNSPEC  HWaddr 00-15-AF-59-60-78-00-00-00-00-00-00-00-00-00-00  
                                          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
                                          Packets reçus:57444 erreurs:0 :0 overruns:0 frame:3848
                                          TX packets:2361 errors:20 dropped:0 overruns:0 carrier:0
                                          collisions:0 lg file transmission:280 
                                          Octets reçus:6565866 (6.2 MB) Octets transmis:152379 (148.8 KB)
                                
                                

                                ifconfig on my pfSenseBox :

                                le0: flags=8843 <up,broadcast,running,simplex,multicast>metric 0 mtu 1500
                                	options=8 <vlan_mtu>ether 00:0c:29:c2:6b:1e
                                	inet 192.168.1.254 netmask 0xffffff00 broadcast 192.168.1.255
                                	inet6 fe80::20c:29ff:fec2:6b1e%le0 prefixlen 64 scopeid 0x1 
                                	media: Ethernet autoselect
                                	status: active
                                le1: flags=8843 <up,broadcast,running,simplex,multicast>metric 0 mtu 1500
                                	options=8 <vlan_mtu>ether 00:0c:29:c2:6b:28
                                	inet 10.187.88.9 netmask 0xfffffc00 broadcast 10.187.91.255
                                	inet6 fe80::20c:29ff:fec2:6b28%le1 prefixlen 64 scopeid 0x2 
                                	media: Ethernet autoselect
                                	status: active
                                plip0: flags=108810 <pointopoint,simplex,multicast,needsgiant>metric 0 mtu 1500
                                pflog0: flags=100 <promisc>metric 0 mtu 33204
                                lo0: flags=8049 <up,loopback,running,multicast>metric 0 mtu 16384
                                	inet 127.0.0.1 netmask 0xff000000 
                                	inet6 ::1 prefixlen 128 
                                	inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5 
                                enc0: flags=0<> metric 0 mtu 1536
                                pfsync0: flags=41 <up,running>metric 0 mtu 1460
                                	pfsync: syncdev: lo0 syncpeer: 224.0.0.240 maxupd: 128
                                tun0: flags=8051 <up,pointopoint,running,multicast>metric 0 mtu 1500
                                	inet6 fe80::20c:29ff:fec2:6b1e%tun0 prefixlen 64 scopeid 0x8 
                                	inet 192.168.2.1 --> 192.168.2.2 netmask 0xffffffff 
                                	Opened by PID 2478</up,pointopoint,running,multicast></up,running></up,loopback,running,multicast></promisc></pointopoint,simplex,multicast,needsgiant></vlan_mtu></up,broadcast,running,simplex,multicast></vlan_mtu></up,broadcast,running,simplex,multicast> 
                                

                                So with this configuration, i'm not able to ping 192.168.1.144 since 192.168.2.6 …

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                                • Cry HavokC
                                  Cry Havok
                                  last edited by

                                  On the Windows PC, what does netstat -rn show?

                                  I'll say it again - if you're not seeing packets back into the pfSense host from the Windows host then the problem is not with OpenVPN, or the remote client.  The problem is entirely in your local network and almost certainly on the Windows host.

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                                  • T
                                    Thibaut
                                    last edited by

                                    result of the netstat -rn on Windows PC :

                                    Table de routage
                                    ===========================================================================
                                    Liste d'Interfaces
                                    0x1 ........................... MS TCP Loopback interface
                                    0x2 ...00 15 c5 a5 3e 96 ...... Broadcom 440x 10/100 Integrated Controller - Min
                                    iport d'ordonnancement de paquets
                                    0x20004 ...00 1b 2f 42 ae db ...... NETGEAR WG111v2 54Mbps Wireless USB 2.0 Adap
                                    ter - Miniport d'ordonnancement de paquets
                                    ===========================================================================
                                    ===========================================================================
                                    Itinéraires actifs :
                                    Destination réseau    Masque réseau  Adr. passerelle   Adr. interface Métrique
                                              0.0.0.0          0.0.0.0    192.168.1.254   192.168.1.144       25
                                            127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1       1
                                          192.168.1.0    255.255.255.0    192.168.1.144   192.168.1.144       25
                                        192.168.1.144  255.255.255.255        127.0.0.1       127.0.0.1       25
                                        192.168.1.255  255.255.255.255    192.168.1.144   192.168.1.144       25
                                            224.0.0.0        240.0.0.0    192.168.1.144   192.168.1.144       25
                                      255.255.255.255  255.255.255.255    192.168.1.144               2       1
                                      255.255.255.255  255.255.255.255    192.168.1.144   192.168.1.144       1
                                    Passerelle par défaut :     192.168.1.254
                                    ===========================================================================
                                    Itinéraires persistants :
                                      Aucun
                                    
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                                    • Cry HavokC
                                      Cry Havok
                                      last edited by

                                      So, you have the correct default gateway.

                                      This means that the probability is that you still have the firewall running.  Trying pinging the Windows host from the pfSense host.

                                      1 Reply Last reply Reply Quote 0
                                      • T
                                        Thibaut
                                        last edited by

                                        When i ping the Windows Host with pfSense, it replies …  :(

                                        1 Reply Last reply Reply Quote 0
                                        • Cry HavokC
                                          Cry Havok
                                          last edited by

                                          Then it's time to install Wireshark on the Windows host and do a packet capture there.

                                          1 Reply Last reply Reply Quote 0
                                          • T
                                            Thibaut
                                            last edited by

                                            YES it works !

                                            I find my mistake : the captive portal was enable in LAN, so the host (which were not authenticate) can't reply to my client…

                                            Very thanks for your help and for your patience !

                                            1 Reply Last reply Reply Quote 0
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