I have a home office setup using 881W router configured for the Easy VPN at the remote end and ASA firewall as the VPN headend. The VPN is coming up and working properly, I am able to connect the corporate servers from home.When I am connecting the IP phone to the 881 router, it is getting registered to the call manager, but as soon as I initiated a call from this phone or received a call, phone will loose the connectivity to the CCM and the call will drop.
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...