I just replaced a Netscreen firewall with an ASA 5515-X. Everything works, almost! The Netscreen allowed clients on the guest network to access NATed hosts on the DMZ and inside interfaces, with their Internet addresses. There was nothing special about, it just worked. I think on the ASA I need to setup a hairpin or U-turn to make this work. I have looked around and not sure I understand it, so I'm asking here.
Here's my config. No vlans on the ASA just individual interfaces.
outside #.#.#.#/28 From ISP
inside 10.0.0.0/8 internal DNS
guest 192.168.1.0/24 external DNS
dmz 192.168.2.0/24 exteranl DNS
What I would like is for any client on the guest network to act as if it was any client on the Internet. Is this doable? If so what's the best way to do it?
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...
[toc:faq]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 and UDP are I...