using a wic-adsl card I have been able to set up a successful vpn connection from a cisco vpn client machine to my 2651xm router but I can't get a connection if I use an external modem.
My lan at the vpn server end is on 172.16.1.xx and goes into the router on f0/0 which is set at 172.16.1.30.
Port f0/1 is on 192.168.1.100 and goes to an external modem set as default gateway
220.127.116.11. With this setup I can surf the internet on the lan machines at the server end.
Problem is I can't get a connection from a remote machine to vpn connect. It worked when I used the wic adsl connection but then I was only using
the f0/0 port which was connected to my lan. But now I'm including the f0/1 port to connect to an external modem the vpn client can't connect. The cisco vpn client tries to connect using tcp on port 10000 and I've set this up in the modem but not sure if I've done it correctly. I've tried forwarding the port to both 192.168.1.100 (f0/1) and 172.16.1.30 (f0/0) but neither will work. Attached is my running config. Thanks for any pointers.
Current configuration : 2757 bytes
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
no logging buffered
no logging console
enable secret 5 xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
enable password xxxxxxxxxxx
aaa authentication login default local
aaa authentication login sdm_vpn_xauth_ml_1 local
aaa authentication login sdm_vpn_xauth_ml_2 local
aaa authorization network sdm_vpn_group_ml_1 local
aaa authorization network sdm_vpn_group_ml_2 local
thanks for your response. I went into the modem and created a static route from the modem to the ip address of f0/1 but the connection still doesn't work. I don't know where the connection is failing, it's either at the modem or at the router. From the vpn client pc I can ping the public ip address of the server location and it replies fine. Is there any diagnostic I can run to find out where the connection is failing?
I cannot make a vpn connection at all, I always get 'no response'. I'm almost certain the problem is the modem, it is not forwarding the connection to the router. I tried altering settings in the modem but still can't get a connection and I've also tried forwarding the TCP port to the router but no joy. I've written to the modem makers and I'm waiting for their reply, hopefully they will tell me what settings to alter in the modem.
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...