[Openswan Users] Strange Problem with L2TP/IPSec

Ravi Verma ravi.verma at telecommand.com
Thu Sep 1 15:53:35 CEST 2005


My colleague and are on two different networks. In fact my laptop has
never on the network mentioned in the error.

We are connecting to the same subnet 10.4.0.0/16 NATed behind the same IP
address and the same VPN server.

Regards.

On Thu, September 1, 2005 2:44 pm, Paul Wouters said:
> On Thu, 1 Sep 2005, Ravi Verma wrote:
>
>> I am having a strange problem. I have an Openswan setup for VPN
>> connection
>> for L2TP/IPSec and Openswan-Openswan connection. It is running on Fedora
>> Core 4. I am able to connect to the VPN server with my Linux laptop and
>> from Windows XP from home without any problem.
>>
>> But when I my colleague tries to connect to the Openswan server, I
>> observe
>> an error in the /var/log/secure file at the Openswan server that my
>> laptop
>> has already used that virtual IP address my colleague is connecting
>> from.
>> while I or my Linux laptop has never been to that site.
>>
>> Any idea as to what can cause this and how to get around this issue?
>
>> Sep  1 13:55:11 lb pluto[4366]: "roadwarrior-l2tp"[5] 205.225.241.126
>> #15:
>> Virtual IP XXX.225.241.XXX/32 is already used by '@ravi.telecommand.com'
>
> Are you both connecting from behind the same NAT to the same VPN server?
> Or
> are you connecting from different networks, being NATed to the same IP
> range,
> to the same VPN server?
>
> We are working on trying to fix this issue.
>
> Paul
>


-- 
Kind regards.

Ravi Verma
Chief Executive Officer
Telecommand Software and Services
2210 Plaza Drive, Ste 150
Rocklin, CA 95765
Phone: 9167053261, 866-220-RAVI (Toll-free)
Fax: 9169142008
www.telecommand.com



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