The problem is I cannot reach the vpn's outside int through the PIX. I did runa debug on that interface as well as the crypto ipsec and isakmp but nothing shows up. Like I said, It works if I go diectly to the outside of the vpn concentrator. That rules out routing and DHCP addressing and such....
I'd suggest looking at installing the 3030 public interface on the Internet perimeter next to the PIX outside interface. There is no gain to opening the PIX to allow all IPsec traffic through the outside to the concentrator.
Then plug the 3030 private interface into a PIX intermediate interface (not inside or outside). On that intermediate interface make sure that you have a route inside. If traffic comes to the inside from an intermediate interface the PIX sends the return back out that intermediate interface.
First you have to have a static translation from your DMZ to the outside interface for your VPN 3K outside interface. Next you have to permit, udp/500,
esp and/or ah protocol for this address. If you want to ping the translated address, you also need to permit icmp. Make sure the VPN 3000 has a default gateway to DMZ interface of the PIX it is facing. Also the DMZ interface that the outside interface is on should be of lower security than the
DMZ interface that the inside interface is facing.
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...