I have a pair of PIX Firewalls 515E with failover activated.
For a long time ago, the Active / Standby config works fine.
But when I have updated the PIX OS image from 6.3 to 7.0 then 7.2, 8.0, 8.0.4 on the primary PIX unit , I have discovered that no synchronization is made bewtween the two PIX firewalls. (the Active and the Stanby).
I tried to update the PIX OS image for the standby unit (even isolated) but without success.
Could someone, tell how fix this problem and getting the two PIX units at the same PIX OS version with successfull Active / Stanby synchronization.
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...