I have a VPN Concentrator 3020 in my structure and i'm configuring IP address assignment by an external DHCP Server.
there is no problem in that: the client authenticates and then receives its IP address..
the problem is that i need to configure reservation on the DHCP Server.. the question is: which is the mac address we have to use for the reservation?
i saw on the server that the mac address of the dhcp request is something like that 0003a08a5308020e7f28f4e9a82000, that is the mac address of the external interface of the vpn concentrator, plus many other characters, that don't seem to be related to the client or any other component in the network, and change everytime we connect..
I think I can't assign the IP address statically on the Concentrator or the ACS, because the users authenticates on the VPN Concentrator through MS Active Directory, so they don't really exist on these devices..
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...