How to Troubleshoot VPN3005-to VPN3005 connection?
I have a VPN3005 device here, and another in Europe. As far as I can tell, all of the configuration settings are correct for our LAN-to-LAN VPN connection. In a test environment, the LAN-toLAN session would connect on it's own, with no intervention required. Are there any troubleshooting techniques for diagnosing the sessions failure to connect?
The 3005 Event Logs don't seem to register anything about this session attempting to connect.
Re: How to Troubleshoot VPN3005-to VPN3005 connection?
Additionally if you donot see any log messages from the other side, you might also want to make sure udp port 500 and ESP traffic is allowed in the middle. Additionally do make sure to do the basic connectivity tests. Sometimes if it works in the lab and doesn't in production, its usually a firewall blocking traffic which wasn't there before.
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...