We are facing some intermittent issue while connecting RA vpn users. This issue has started after upgrading ASA 5545-X 9.1.2 to 9.1.5-(10).
VPN users are successfully authenticated as per ACS logs, but its not able to complete the Phase 2 negotiation. VPN user ip address is configured to assigned from DHCP. However this is kind of intermittent as same users are able to connect some time, but not all the times.
Here is the configuration of one of the profiles and we have 3 similar vpn profiles.
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...