Hi, a quick question about the Cisco VPN client (3.5 and later). Is it possible to use the integrated firewall on VPN client without the VPN30XX concentrator or only the concentrator is able to make a firewall policy for the VPN client and make it work?
The VPN client does have a personal firewall built into it now, this firewall can be enabled all the time, or just when a tunnel is built. Currently only the VPN3000 concentrator can actually push a firewall policy to the client.
If all you want though, is to deny access to the PC except for PC-initiated connections (no-one from outside can initiate a connection to the PC), then this is the standard policy and can be enabled just by selecting the "Stateful Firewall Always On" menu option within the client, no head-end concentrator is needed.
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...