How far back the selective-ack feature supported for the PIX? We have a PIX 515 running v5.1 and a vendor saying that they are communicating using selective acknowledgements.
I see the commands in a the v.7.0 reference, but not earlier. Also, I'm working under the assumption that selective-acks are forwarded by default on our edge router which is running IOS 12.4.3 (this may be an incorrect assumption).
Do I need to upgrade to 7 in order to allow the vendor's software to use selective-ack?
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...