I have a business partner who has a L2L tunnel setup. They insist that they are properly routing traffic to through the tunnel to an internal FTP server at my site (We also allow them to access some UNIX hosts via Telnet through the tunnel, which works).
At this point we don't have a whole lot of access restrictions as far as ports. Currently we only allow 2 IP addresses from their network to access 2 IP address inside of ours. We are using NAT for our 2 addresses.
When I run a sniffer between the 3030 and the FTP server I never see traffic from their network to our FTP server. Is there a way to log or see what the 3030 is dropping for that tunnel?
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...