Hi .... static NAT only supports a one-to-one mapping. this applies to any version.
The static command creates a one-to-one address translation rule (called a static translation slot or
xlate). Each local address is translated to a fixed global address.
What you could do is to create a vitual adapter on your mail server and give it another IP i.e 192.168.1.10. Then create another static pointing the second Public IP to this IP. In this way you will be reaching the same mail server.
Thanks for the reply. I must be dealing with bug then because in ver 6.3(3) I can NAT several public IP addresses to a single internal private IP address using the static command. I'm running it successfuly right now.
Unforetunately, it looks like I'm limited to a single private IP address on my mail gateway (Barracuda). I think at this point I might be stuck with changing my MX Host records in DNS for each domain to point back to a single NAT address since in 7.0 I am restricted to a 1:1 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...