I would like to greet you. This is my first discussion on cisco support community ( previuously I was on cisco learning network ). I'm lil bit worried about one thing. Currently I'm working in one of the biggest banks in my country as a network administrator and we are planinng to upgrade our ASA from 8.3 (1) version to newer. We noticed a lot of bugs in current version so upgrading is really must. My question would be :
What is the next best software version, I mean painless for my company I have a lot of NAT rules, ACLs, VPN's in production so what is the difference from current version to newer, let me say 8.4.7 ED. Is there any instructions for migration and what problems may encounter because Cisco documentations is lil bit unclear and confusing.
then you need to add the no-proxy-arp keyword at the end in newer 8.4 code. if you don't the ASA will start replying to ARPs for NET_IN1 subnet on its inside interface also; this is caused by the any keyword.
if it was nat (inside,outside) ... then you're ok...
3. managing the ASA through VPN stops working (bug CSCtr16184):
even if you have the management-access inside command, it might fail:
you need to add the route-lookup keyword in the identity NAT:
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...