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Need access to subnet via safenet vpn client

Posted on 2006-05-13
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Okay...frustrated again. Here´s the deal.
I need access to subnet (only) via dynamic vpn connection. Might be routing/gateway problem.!

Main-office has one Zywall-router with 1 WAN and inside addr. 192.168.1.1 /24.
The subnet is located on a layer 3 switch/router 192.168.1.171 /24    Subnet= 192.168.41.1 /24
PC´s on 192.168.41.0 net, gateway to 192.168.41.1 and can internet that way.

I need VNC acces to IP 192.168.41.7, through VPN-client - but can only connect to 192.168.1.xxx PC´s

When I connect my laptop inside the LAN, with ip 192.168.1.73, I succesfully ping 192.168.1.xx and 192.168.41.xx devices.
and VNC ok.

But when I VPN-in via SafenetClient, I can ping all on the 192.168.1.xxx net - no answer from 192.168.41.7   ????
???
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Question by:HHLiisborg
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redgun earned 1000 total points
ID: 16674529
Hi,
I am not an expert in Zywall devices but as you says it sounds more to me like a routing problem
Q1) when you connect from your local lan, who is your default gateway (DG)? you can check it with ipcofig in win xP

if your DG is not the internal ip address of your zywall router then someone else is doing the routing job for it, this explains why when you connect from your vpn client the zywall does not knows how to reach the required network. then you will have to add this route on it
must be something like this
in order to reach network 192.168.41.1 /24 you have to ask ip address x.y.z.w

when x.y.z.w is your internal DG.

Q2) when you connect from vpn, what is your ip and your DG?

if your firewall is giving you ip address from a network different from the inside your L3/ switch router will do not know how to reach it  so you will have to add a route on it pointing to this network

in order to reach network a.b.c.d ask  internal zywall ip address
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by:HHLiisborg
ID: 16727955
Hi red... first of all, the Layer 3 switch was defect :-( Couldn´t add route.
Second, if you want access to subnets through vpn, you have to specify the hole IP-Range, and not just the local 192.168.1.0 net.

The VPNnet-policy must be 192.168.0.0 - 192.168.255.255 ....of cause, otherwise there´s no way the vpn can get answer from 41.0 net.

Anyway..your reply, made me certain of routing-probs. Just needed to confirme. Thanx
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