I have configured an ASA 5510 to be between an internet router and a cisco switch. I have 3 servers in my inside network which users access from outside and these servers also have public addresses, my inside user can connect to the internet,surf the net and I can also pull down mails from my exchange server via the internet, BUT MY REMOTE USERS CANNOT ACCESS THESE SERVERS FROM THEIR REMOTE END.
I have attached the configs on both the router and ASA for someone to please help me check and look what I did wrong.
Just run a packet-tracer on the ASA sourcing TCP traffic from any random IP on the internet destined to the public mapped IP:service of any of the concerned servers. If its all OK try to telnet from the router to that port (using the public IP of the servers).
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...