I have a 1800 router and my ISP blocks port 25 (smtp). I need to configure inspect and port-map esmtp to port 587, but I can't configure this. If i configure port-map on port 587 directly (not port-map esmtp), the applications not works correctly (very slow access).
The question is: My IOS support port-map esmtp service (not smtp) ? If not, what I need to solve this ?
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...