Suddenly our AnyConnect users can no longer connect to our ASA 5510. They get the error "clientless ssl VPN is not allowed". Of course they are using AnyConnect so it is not a clientless connection. This has been up for many months and just started yesterday. I have my VAR working on it but I'm getting impatient. We have redirected some users to use the IPSec client and that works. Any ideas out there? Thank you in advance.
We have had several changes to the configuration the last couple of days but at the time of failure nothing going on. From our VAR it appears the ASA rebooted on their own (we have two in failover mode) and then after that the issue occured.
Yes, it should support two clientless portal sessions but that doesn't work either.
VAR has it working again. Something with the configuration not saved and when they rebooted it was lost. Now we need to figure out why they rebooted all on their own. Thanks for trying to assist Federico.
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...