Ironport v7.5.1-028 was avalible on one Ironport but not the other. And I may have been stupid and made the upgrade on the first, but then noticed not beeing able to upgrade to more than 7.1.5-017. Both were from 7.1.3-010. Avalible upgrades just dont list anything. (ERROR - No avalible upgrades)
please open a ticket with customer support and tell them your issue, 7.5.1 is not generaly available yet, but has been provisioned automatically to appliances that had been affected by bugs now fixed in that release. In case your cluster is not working any more, support can help you on getting the oother appliance provisioned as well.
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...