We recently migrated from an OpenBSD/PacketFilter firewall solution to a Pix 515E (6.2). In our previous setup, we used the firewall to redirect all port 80 requests to the proxy server in order to operate the proxy transparently. I have yet to figure out how to duplicate this on the Pix. The setup we use is as follows:
Any ideas on how we can recreate our transparent proxy on the Pix would be appreciated. Thanks in advance!
Unfortunatelly there is no way for that kind of redirection on the PIX. Instead if you have a Cisco router, try to use the WCCP protocol. Strictly speaking Cisco gives a solution for transp. proxying with a Cisco router and a Content Engine (cache engine) using that WCCP protocol.
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...