I have our ASA 5510 set up to create a vpn for our users. When I test it locally it works fine, but when I try to use it remotely it will not work. Additionally port 500 is open locally, but not remotely. What am I missing? I have been told that there are no firewalls in place that would affect me.
If the clients cannot connect to port 500, then they cannot connect to the service, so when connecting remotely, the commands you mentioned do not show a connection. When I connect locally, it does show the connection as accpected though. I am using the same laptop to connect at both locations, so I know the settings are the same.
By remotely, I mean that if I do an nmap -p 500 -sU, I show port 500 being open locally, when I leave and connect to another network, it does not show open there. I am not firewalling the port remotely, I just am saying I cannot see it open from there.
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...