I have a problem configuring site-to-site vpn on two Cisco1841 ((C1841-ADVSECURITYK9-M), Version 12.4(3i)) routers.
I could see several discussions with similar problems, but no help, and I could not find any solved problem too .
Please see two attached documents, the first one, with config samples from both local and remote routes, and the second one with the output from debugging.
I double checked configs on both routers and it seems like both are fine.
The strange is that tunnel is all the time up, but I have only 50% from the pings from the local networks. Pings from local and remote peers goes with 100%.
Please see errors on the debug document.
Second thing, Please pay attention on the subnet mask of the local interface of the local router (255.255.255.224). Is it maybe the root of a problem, it is not consistent with the access list which is with wild card 0.0.0.255?
I think that this is the only thing I forget to check today.
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...