Re: Difference b\w Pre-Shared and Pre-Shared(X-Auth)
Pre-shared keys are used between 2 routers when you want to create LAN-to-LAN VPN connection. Pre-shared (with X-auth) is used between a router and a VPN client. X-auth requires user and group authentication of the connecting unity client peers through some mechanisms like AAA server.
If you are using a head-end router to allow both site-end routers and remote VPN client peers to establish VPN tunnels, then the head-end router should be configured with both Pre-shared key and Pre-shared key (with X-auth); one for the LAN-to-LAN tunnel peer and the other for the unity client peer.
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...