I can access a customers voice-gateways thru VPN with my home TW cable modem connection but in the office thru same VPN connection cannot. I get in to the VPN OK at office but cannot ping/telnet to devices. I do see the routes in the VPN Route Details tab, but I also do not see any return packes in the Tunnel Details tab. Any insight, I'm posting some attachements when it works vs when it doesn't...thanks for the help (newby with VPNs).
What is the internet gateway @ your office and is your PC IP Address getting a Static Public IP Address when traffic is destined to the internet or is it Port Address Translated.
And also, what option are you using to connect to the VPN Server. Is it IPSEC, IPSEC Over UDP or IPSEC Over TCP and what is the VPN Server that you are connecting to.
If you are using IPSEC, then UDP Port 500 and Protocol 50 (ESP) are used to build the tunnel and encrypt the packets. So, if your office is set up for PATing your IP, then this set up will not work. Since Port Address Translation does not understand Protocol and your IPSEC packets will get dropped at the PATing Device.
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...