I just installed a PIX for remote access. During the day when there is outbound traffic from the LAN to the Internet, the VPN works fine. I can authenticate to the PIX and access resources inside the network. However, after hours when there has been no activity from the inside interface to the outside interface, I can authenticate using a preshared key to the PIX and I get an IP address from the DHCP pool on the PIX; however, I can't ping the PIX inside interface IP or any hosts behind it. The inside iterface acts like it is shutdown.
I'm using the Cisco client and IPSEC. Any ideas on what is causing the problem?
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...