VPN Pass-through is a feature which allows a client to establish a tunnel only with a specific VPN server. So, if you need to securely access the configured VPN server as well as another VPN server or the Internet, this is not possible with VPN Pass-through enabled on the controller. Under such requirements, you need to disable VPN Pass-through. However, the WLC can be configured to act as passthrough in order to reach multiple VPN gateways when an appropriate ACL is created and applied to the corresponding WLAN. So, under such scenarios where you want to reach multiple VPN gateways for redundancy, disable VPN passthrough and create an ACL that allows access to the VPN gateways and apply the ACL to the WLAN.
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...