VPN

According to the document, if u upgrade twice for the software then the concentrator will have 2 copied of the image on 2 different flash.If I upgrade the image and haft way through the concentrator hang up, how do I recovery back the previous image?...

Could somebody please point me to a document that explains and lists IOS VPN configuration (using shared-keys) to support DHCP for a VPN client.I would like to understand the steps and configuration. Thanks in AdvanceMatt K

Ok!, here I send the configuration in both sides of the VPN: PIX Firewall access-list 20 permit tcp host <remote public IP> host <local public IP> eq telnet access-list vpn-name permit ip host <local public IP> host <remote public IP> crypto ipsec tr...

Hi: I want to establish a VPN LAN to LAN over IPSEC through a PIX Firewall, I have a VPN concentrator 3005 in a DMZ in my PIX and the cliente has a FREESWAN linux, I am using a NAT for the ip address of the public interface of the VPN 3005. The VPN n...

I have a Linksys WUSB11 2.6 802.11b on my laptop. I can use my laptop and connect to the VPN at work with no problem using my cable modem and a direct connection to my network switch. However, when I try to use the WAP11 Access Hub (it is not a rou...

Hi all,Is the above possible?What I am trying to work out is if I have a router performing nat with one legal ip, will the vpn client happily connect to this ip address if it is routed through to the external interface of the pix.Are there any pitfal...

HelloI have an 827 with 12.2.4(T) and a 1720 with same. I create an IPSEC VPN between them but traffic is not seen inbound to the 1720 from the 827 when I look at sh cry ips sa. If I ping from the 1720 to the 827 then look at sh cry ips sa on both I...

What does this message mean? I got it from my cisco vpn client log viewer:1 16:08:31.600 04/02/03 Sev=Warning/3 IKE/0xA3000058Received malformed message or negotiation no longer active (message id: 0xE18FDD27)It seems the vpn connection is set...

Hi All,I have a problem with the configuration of the VPN, The same configuration on a PIX 515 has no problems.I have turned on the deb crypto isakmp, but no packet are received from the pix.Consider that I am using the pix to browsing internet and t...

HiI open a VPN connection using CiscoVPN client 3.6.3 (behind a NAT) to a Cisco 3620 router, all works well, but when I use "sh crypto isakmp sa" command on the router, I see two couple of SA each associated with the same remote client! During the c...

I have a Scenario where the VPN 3000 concentrator is configured use DHCP to assign IP addresses to VPN clients. Is it possible to configure the VPN Concentrator such that, Only for one of the groups on the concentrator, Address assignment is done usi...

Confgiuration: PIX 501 (6.21) Cable Modem, Single IP, DHCP on the Outside Interface, using PATI am trying to use the Cisco VPN Client and MS L2TP from the inside of the firewall. What must I turn on or open to pass the traffic properly through the f...

Hello,Does somebody know how to enable dynamic DNS (w2k workstation with VPN client to vpn3030 ) ?The problem is that the client register ok with Wins but never with dns ( it stays as old IP address record) so some servers refuse to work.I tried seve...