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whitefofito

Member

Registered: 2011-11-02

Posts: 2

OpenVPN Bridge - Remote Devices got ip but no communication

Hello.

I wrote here after reading a lot of topics but i still have this problem:
*The remote computers connect to vpn and receives an internal ip.
*Remote computers cannot communicate with internal network not even ping the internal ip server.
*I suspects about the tap0 device (server side).

I already did a tcpdump from tap0 interface (server side) in order to check whats going wrong and i never receive any kind of arp/udp/tcp package from any of the clients EVEN if the clients said its 'correctly connected and working'
I already did also a wireshark from tap device in Windows Machines and its send correctly the "ARP requests " but nobody responds.
Thanks.

Topology.

Computers(internal network 192.168.5.0/24) <->Swich <-> (192.168.5.249) Gateway(openvpn server) (external static IP) <-> Internet <-> Remote computers.

Configuration for server.

port 1194
proto tcp
ca --Hidden--
cert --Hidden--
key --Hidden--
dh --Hidden-
mode server
server-bridge 192.168.5.249 255.255.255.0 192.168.5.100 192.168.5.110
dev tap0
;server 192.168.5.249 255.255.255.0
ifconfig-pool-persist ipp.txt
keepalive 10 120
comp-lzo
user nobody
group nobody
persist-key
persist-tun
status /var/log/openvpn-status.log
verb 9
log-append /var/log/openvpn
status /tmp/vpn.status 10

client
dev tap
proto tcp
remote --Hidden- 1194
resolv-retry infinite
nobind
persist-key
persist-tun
ca ca.crt
cert rodo.crt
key rodo.key
ns-cert-type server
verb 3

br0       Link encap:Ethernet  HWaddr 00:E0:81:5C:89:8F
          inet addr:192.168.5.249  Bcast:192.168.5.255  Mask:255.255.255.0
          inet6 addr: fe80::2e0:81ff:fe5c:898f/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:38708 errors:0 dropped:162 overruns:0 frame:0
          TX packets:1120 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:2192760 (2.0 Mb)  TX bytes:91553 (89.4 Kb)

eth1      Link encap:Ethernet  HWaddr 00:E0:81:5C:89:8F
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:48395 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1680 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:3395450 (3.2 Mb)  TX bytes:136931 (133.7 Kb)
          Interrupt:23 Base address:0xa000

tap0      Link encap:Ethernet  HWaddr DE:DC:B7:4F:D4:5F
          inet6 addr: fe80::dcdc:b7ff:fe4f:d45f/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:792 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:0 (0.0 b)  TX bytes:53874 (52.6 Kb)

bridge name     bridge id               STP enabled     interfaces
br0             8000.00e0815c898f       no              eth1
                                                                      tap0

whitefofito

Member

Registered: 2011-11-02

Posts: 2

Re: OpenVPN Bridge - Remote Devices got ip but no communication

Solved!

comp-lzo should be enabled or disabled in BOTH i miss to disabled in server.

Thanks