Multiple VPN connections from behind a NAT - Netgear and Linksys routers

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From: Pawan Singh (k2k2e6_at_yahoo.com)
Date: 04/24/04 

Date: 24 Apr 2004 16:06:44 -0700

Hi,

I have a Netgear router at home and my home network is behind the NAT
network provided by this router. I connect from this home network to
work using Windows XP's built in VPN software. What I am finding is
that if two client machines from my home network start VPN tunnels to
outside, only one of them works. The other one does not. A single VPN
tunnel works perfectly.

Is this problem with Netgear equipment (WGR614v4)? They claim that
they can do 2 VPN passthrough tunnels through the router. Do other
routers out there support multiple VPN passthrough tunnels?

>From reading the protocol specs and problems of IPSec through NAT, it
seems like it would be impossible for routers to do more than one
unless the router itself initiates the VPN tunnel.

Thanks
-Pawan

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