A pix to pix vpn(behind the cable modems doing dynamic ip address). How will the pix keep the external ip address if the cable is dynamic. I am thinking the VPN might because once the cable changes ip.
Then does it mean that we have the same capabilities for vpn and remote access using a dynamic IP address than an static if we know how to do it?
Your best et for this is to use the ezvpn on the PIX that has the dynamic IP address. I use this on 831 routers and a bunch of PIX 501's that terminate to a PIX 515 or a 3005 concentrator. There is a trick as well to bypass all authentication or Xauth to authenticate on the pre-shared key only. Off the top of my head I am not sure what it is, but I will forward it on when I get back in the office. Yo will need to use (I beleive Network Extension mode) if you want full two-way traffic. This will act as a IPsec lan-to-lan tunnel for you
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...