topic IP Address range problems with VPN connection in Network Security

IP Address range problems with VPN connection

dbeneyto — Fri, 21 Feb 2020 08:36:38 GMT

I have a problem with IP Address range on Cisco VPN client side:

Like most ppl knows (at least in Spain) DSL Providers set usually 192.168.1.0/24 range for home network access configuration.

On my office there is the same range set (192.168.1.0/24) .

Then the Cisco pix 501 VPN configured pull is from 192.168.1.60 to 192.168.1.70.

The problem appears when I try to connect from my home to my office via Cisco VPN Client that I only able to see computer that I

set up on the Cisco Pix as my DNS Server on the VPN Configuration. Can't see any other computer. It's able to make VPN remote configuration

to conect from a Client to LAN wich the same configured range? Wich parameters do I have to set up?

Re: IP Address range problems with VPN connection

mheusinger — Sun, 01 Jan 2006 20:43:37 GMT

Hi,

the simplest thing would be to change your home LAN to 192.168.2.0/24 to avoid all duplicate IP problems. The ISP will not even know it. I am assuming your internet gateway is under your control and you NAT everything leaving your home LAN.

Hope this helps

Martin

Re: IP Address range problems with VPN connection

jackko — Sun, 01 Jan 2006 23:32:35 GMT

in case it is not feasible to reconfigure the home router, due to the restriction of isp (which should not be the case), another option is to deploy a router behind the home/isp-provided router and runs on a different subnet.

e.g.

www <--> isp-provided router <--192.168.1.x--> new router <--172.16.8.x--> pc