have implemented a 2 site vpn solution on cisco 1720 using 3des. when im trying to ping out or connect to internet im being blocked by rasa4.ilford at one sit and rasa3,ilford at the other. they will not authenticate me . pipex the isp are saying this is a bt problem, jhas anyone had similair exp and can give me some advice.
response. my understanding of udp port 500 and protocol 50 are they deal with the actual tunnelling although i could be wrong, but i am actually unable to make any kind of connection outbound at all due to this block, but am obviously leaving each site. please explain as i am a little confused.
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...