VPN - question about connecting through more than 1 tunnel

lgontarsk · ‎07-25-2007

Hi,

We have a router that has VPN connections to different partners to our company. Remote Access VPns have been used on the PCs that are connecting to the different partners of our company.

There have been problems like this, ie putting a watch dog and a cisco vpn client both on the router has led to blue-screens on the PCs.

The current idea is to put various site-to-site tunnels on the router (default gateway of the PC clients that connect to the partners). My question is... how do our PCs get DHCP addresses on the visiting networks, once the tunnels are up? I guess I'm alittle confused about how the addressing for the PCs on our end is going to work.

Thanks for your assistance.

Jon Marshall · ‎07-25-2007

Hi

With site to site VPN's you generally don't allocate the IP addresses from the remote site ie. it's not like client VPN's where the PC gets an address once it has connected.

With site-to-site you use your PC's existing addresses. If there is a conflict between these addresses and your partners addresses you can NAT you client addresses before you send them down the tunnel.

Please come back if you need more clarification.

HTH

Jon

lgontarsk · ‎07-25-2007

So as far as the return route goes... they'd have to do RRI to get our route into their routing table?

Thanks much!

LisaG