I just installed an 5505 with a base licence. They had a spam appliance configured years ago with an IP from the same block they have, so its accessible externally. Right now to get this to work, i have to have a switch that the cable modem, ASA, and appliance plug in to. Given the base licence, is there any way to configure a port on the ASA to 'pass' traffic' from the appliance to the WAN port and then inside without a DMZ, since I can't configure one? Otherwise I guess its time to bring it inside the firewall!
Any guides on this you are aware of? I was playing around with some settings like assigning another port the same interface and anbling traffic to flow from one interface to another of the same security level but it kept throwing an error.
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...