I have a Cisco ASA 5510 and would like to setup a NAT rule for one server but only for traffic that matches a destination with a specific IP and Port. Is this possible?
The reason I ask is because I have one application that requires a connection to a VPN tunnel from a specific IP, so if I setup the Outbound NAT, all traffic then matches and gets translated, but this breaks all the other applications we have in place. I just want this one application on one specific port to be translated to the IP and then sent over the VPN connection.
Any help would be greatly appreciated! If you need more information, please let me know.
Internal Server (192.168.1.22) creates a session with external server (18.104.22.168) on ports TCP 333 and TCP 444. To access the external server a VPN is established, however the Internal Server must present the source IP as 22.214.171.124 to the external server.
I therefore only want NAT translation to occur on this server when using this application on ports 333 and 4444. Any other applications on that server should not go through NAT translation.
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...