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[Openvpn-users] Re: MULTI: bad source address from client


  • Subject: [Openvpn-users] Re: MULTI: bad source address from client
  • From: Mark Hellman <markhellman@xxxxxxxxxx>
  • Date: Tue, 01 Feb 2005 23:23:52 +0000

Aaron P. Martinez wrote:

> Which sample configs, and can you post them?

Thanks for replying, Aaron. 
The network configuration I have is the following:

 --------       -------------               -------------       --------
| Client | --- | NAT router1 | ----------- | NAT Router2 | --- | Server | 
 --------       -------------               -------------       --------

The Server is on a DMZ (incoming connections reaching NAT Router2 are
forwarded to the server). I have already used OpenVPN successfully under
this scenario. But it was with OpenVPN 1.x. Not only I was able to reach
other hosts on the server's LAN, but I was also able to use the VPN as my
default route and, thus, access the Internet through the server.

Now I want to do the same with OpenVPN 2.0, but no success so far. My
server.conf is exactly the same as the sample-config-files/server.conf
shipped with OpenVPN, with the exception of the line:
   ;push "redirect-gateway"
which I uncommented. On the client side, the client.conf is also the same as
the sample-config-files/server.conf with the exception of:
    remote my-server-1 1194
which was obviously changed.

According to the logs on both sides, the connection is successfully
established. I enable ip_forward and proxy_arp on the server, but I am only
able to ping 10.8.0.1. Nothing more. Here goes my client routing table
after a OpenVPN connection has been established:

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref   Use Iface
10.8.0.5        0.0.0.0         255.255.255.255 UH    0      0        0 tun0
10.8.0.1        10.8.0.5        255.255.255.255 UGH   0      0        0 tun0
81.193.37.106   192.168.0.1     255.255.255.255 UGH   0      0        0 eth0
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     0      0        0 eth0
127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 lo
0.0.0.0         10.8.0.5        0.0.0.0         UG    0      0        0 tun0

Everything looks fine. But I am not able to anything useful with the VPN
created...


Mark


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