Allright. Im quite sure the connection is built up and working and it seems to be a routing issue. My client can connect and gets an IP. I've run tcpdum -i tap0 on the server to get the traffic running over the interface. This is the output (filtered for just the client 192.168.69.61):
Code: Select all
root@xxxx:/etc/openvpn# tcpdump -i tap0 -v
tcpdump: WARNING: tap0: no IPv4 address assigned
tcpdump: listening on tap0, link-type EN10MB (Ethernet), capture size 65535 bytes
08:42:26.291261 IP (tos 0x0, ttl 64, id 53922, offset 0, flags [DF], proto UDP (17), length 260)
192.168.69.9.netbios-dgm > 192.168.69.255.netbios-dgm: NBT UDP PACKET(138)
08:42:46.349635 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.69.9 tell 192.168.69.61, length 28
08:42:46.349674 ARP, Ethernet (len 6), IPv4 (len 4), Reply 192.168.69.9 is-at 00:xx:5d:00:01:xx (oui Unknown), length 28
08:42:47.341384 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.69.9 tell 192.168.69.61, length 28
08:42:47.341425 ARP, Ethernet (len 6), IPv4 (len 4), Reply 192.168.69.9 is-at 00:xx:5d:00:01:xx (oui Unknown), length 28
08:42:48.355457 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.69.9 tell 192.168.69.61, length 28
08:42:48.355494 ARP, Ethernet (len 6), IPv4 (len 4), Reply 192.168.69.9 is-at 00:xx:5d:00:01:xx (oui Unknown), length 28
08:42:49.356289 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.69.1 tell 192.168.69.61, length 28
08:42:50.352020 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.69.1 tell 192.168.69.61, length 28
08:42:51.350366 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.69.1 tell 192.168.69.61, length 28
08:42:59.665922 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.69.10 tell 192.168.69.61, length 28
08:43:00.355562 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.69.10 tell 192.168.69.61, length 28
08:43:01.351596 ARP, Ethernet (len 6), IPv4 (len 4), Request who-has 192.168.69.10 tell 192.168.69.61, length 28
^C
13 packets captured
13 packets received by filter
0 packets dropped by kernel
The OpenVPN server @ 192.168.69.9 seems to be getting the traffic and even replys to the arp requests. The other clients in the network don't get any arp requests for some reason. The client on the VPN connection can't ping the server at all so I guess he doesn't get the ARP reply. I'm not totally sure here, could anyone correct me if I'm wrong? How can I get the routing to work?
Wireshark Output from the client - doesn't get an ARP response:
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No. Time Source Destination Protocol Length Info
331 101.791820000 00:ff:90:37:c8:93 Broadcast ARP 42 Who has 192.168.69.1? Tell 192.168.69.61
Frame 331: 42 bytes on wire (336 bits), 42 bytes captured (336 bits)
Ethernet II, Src: 00:ff:90:37:c8:93 (00:ff:90:37:c8:93), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)
No. Time Source Destination Protocol Length Info
335 102.218563000 00:ff:90:37:c8:93 Broadcast ARP 42 Who has 192.168.69.9? Tell 192.168.69.61
Frame 335: 42 bytes on wire (336 bits), 42 bytes captured (336 bits)
Ethernet II, Src: 00:ff:90:37:c8:93 (00:ff:90:37:c8:93), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)
No. Time Source Destination Protocol Length Info
338 102.717758000 00:ff:90:37:c8:93 Broadcast ARP 42 Who has 192.168.69.1? Tell 192.168.69.61
Frame 338: 42 bytes on wire (336 bits), 42 bytes captured (336 bits)
Ethernet II, Src: 00:ff:90:37:c8:93 (00:ff:90:37:c8:93), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)
No. Time Source Destination Protocol Length Info
342 103.716069000 00:ff:90:37:c8:93 Broadcast ARP 42 Who has 192.168.69.1? Tell 192.168.69.61
Frame 342: 42 bytes on wire (336 bits), 42 bytes captured (336 bits)
Ethernet II, Src: 00:ff:90:37:c8:93 (00:ff:90:37:c8:93), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)
