Problem with IPSEC tunnel between two Cisco Router 2811
I'm trying to set up a site to site vpn from a remote office to a central office with two Cisco 2811 routers. In the remote office there is a non-Cisco cable modem and router (owned by an ISP- Public IP 18.104.22.168 - not real)
The central router is working ok and have other vpn tunnel active.
The router owned by the ISP has the ports redirected to Cisco 2811 router (10.100.100.20 )(UDP 500, TCP 1723, TCP 47, TCP 50, TCP 51).
Tunnel is up, but line protocol is down and I can't make it work.
Re: Problem with IPSEC tunnel between two Cisco Router 2811
Can you tell us what is the problem? is the tunnel not coming up? Are you not passing traffic? You might want to get rid of the crypto map on the tunnel interfaces of each router and leave only the crypto on the physical interfaces.
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...