Multiple VPN Tunnels from one DSL Line with router into a PIX 520
I'm working with a company that is using a PIX 520 firewall to provide the VPN access, they do not have a concentrator. I am using a DSL modem with a Nexland Pro 100 router on the client side. I am trying to open multiple VPN tunnels. I have no problem opening the first VPN tunnel, when a second computer on the router attempts to open a Tunnel I receive a Peer Not responding message. I know this would work with a Concentrator, but it won't work with the PIX firewall. Any suggestions would be appreciated.
Is there a Cisco Router I could use, or a setting on the PIX Firewall that could be changed?
Re: Multiple VPN Tunnels from one DSL Line with router into a PI
Your DSL router is probably running NAT which will only allow the first tunnel to be built. To run multiple tunnels over NAT or any tunnel over PAT you'll need to have a feature called NAT transparency mode which is currently not available on the PIX. The VPN concentrator would be required for this application (or get more real IP's from your SP).
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...