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[Openvpn-users] 2 PCs in behind NAT fail to connect to VPN

  • Subject: [Openvpn-users] 2 PCs in behind NAT fail to connect to VPN
  • From: "Pieter Temmerman" <bocalinda@xxxxxxxxx>
  • Date: Fri, 14 Dec 2007 18:39:59 +0100

Hi All,

I got a private network with 2 pc's trying to connect to a VPN over the internet.
The network has only 1 public IP, thus uses natting.

When I connect with one machine to the VPN, then everything works fine.
But as soon as I connect with the 2nd machine to the same VPN, then one of the 2 connections stalls.

This appears in my firewall stats on the VPN:

PR    DIR SRC                   DEST                  GW                             STATE                AGE       EXP   PKTS  BYTES   RATE   PEAK    AVG RU
udp   In                             MULTIPLE:MULTIPLE     00:02:23  00:00:51    174  16145      0     32    112 14
udp   In                             MULTIPLE:MULTIPLE     00:07:02  00:00:55    220  20398     16     16     48 14

As you can see..2 machines are connected from the same up..but with different source port.

Any ideas?