I have a VPN tunnel between a 3000 Concentrator and a PIX 501. The users at the remote office and get out to the Internet, the tunnel comes up but there is only oneway traffic. The Concentrator is sending, encrypting packets but not receiving them from the PIX. On a "show crypto ipsec sa" command on the PIX, it receives and decrypts the packets but is not sending or encrypting packets. Is this a routing issue?
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...