vpn endpoint inside firewall

Nov 02, 2006 0 Replies

Hi all,



When placing a VPN router/server inside a firewalled network, I assume it will be fine to just attach one LAN-side port to the local LAN, and not have a connection to the vpn router's WAN port. Yes?



My firewall router is a Linksys WRT54G v3.0 running HyperWRT v15c. I'm using this setup because I need lots of ports forwarded (more than what's available with the standard firmware), and I need to be able to forward GRE using iptables. And I'd like to keep the firewall separate from the vpn endpoint.



For the vpn endpoint I'll be using a Netscreen, Netgear, D-Link, or Linksys. The client will be an XP laptop running a clinet that's IPsec



-- either the vpn device's proprietary client or TheGreenBow, etc.



Alternately, I could move the WRT54G to the inside and use it as just a wireless access point, but I'd need to port-forward 30+ ports. (usually soho routers only allow 10 or so.)



I've had trouble setting up various software VPN servers:



A) XP host inside private network listening for VPN conections: -- I forwarded nececary ports, plus used IP tables to be sure the GRE is forwarded. -- Got 721 error. Tried & tried & tried. No joy.



B) OpenVPN running on same XP box: -- Bridged network and Tapi interfaces. -- On laptop, worked okay, but soon stopped. -- Note, when switching from Ethernet to Wireless must delete bridege, recreate & rename bridge on new interface. PITA.



So, what's the popular physical arrangement for a soho VPN box inside the firewalled home LAN?



Thanks in advance.


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