We have a Cisco 3640 router which is now spare. It has two Ethernet interfaces physically.
I would like to find out if we can configure this device for use as a VPN gateway to our network.
We have a PIX firewall acting as a gateway for the network to the Internet, and I was considering putting this device with one interface on the public IP range and the other on our LAN with RADIUS authentication against a domain controller.
Is this a secure setup, or is there a better way to position the 3600 router for VPN access behind the PIX, etc..
Is the 3640 even capable of doing such things (authenticating several users for VPN access)?
Lastly, if possible, could someone point me in the direction of VPN configuration samples on this router platform.
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...