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VPN issue

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Name: Gopala Dandu (by gkraju747)
Date: December 19, 2006 at 21:31:16 Pacific
OS: XP Pro
CPU/Ram: P4 3.06/1GB RAM
Product: Self Assembled
Comment:

Hi,

I connect to my office network using Cisco VPN 5000 client. The VPN says connected after I give all the information. But actually none of my office links open. I am connecting from home. So, I tried from one of my friends home and from there I am able to access my office links without any issues.

So I thought there is a firewall somewhere in my home that might be blocking. I disabled firewalls from my computer, DSL modem and Router. Still I am unable to open links even though the VPN gets connected???

My friend has Cable while I am using DSL. Is there anything that I need to do in case of DSL? or any ports to be opened? or will VPNs do not work with DSL? I dont know what to do. Pls help me.

I feel that there is something thats blocking as I am able to connect from my friends house with same settings on my computer and also with firewall ON for my computer. Dont know where its going wrong.

Gopal Krishna



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Response Number 1
Name: Jennifer SUMN
Date: December 20, 2006 at 04:26:13 Pacific
Reply:

What exactly do you mean by "Office Links?" Are you connecting through VPN and then using Remote Desktop or something else?

Life is more painless for those who are brainless.


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Response Number 2
Name: Gopala Dandu (by gkraju747)
Date: December 20, 2006 at 05:08:08 Pacific
Reply:

I mean to open my office websites and its intranet stuff, I have to get connected to that network since I am at home which is just public internet. So I use VPN client provided to me and it gets connected, Though it gets connected, all the intranet links and programs in my office network do not open and I get "page cannot be displayed" or "host not found".

I just have to get the VPN client connected and then once I open any link to my office intranet, it will come up. No need to use remote desktop or any other things.

Gopal Krishna


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Response Number 3
Name: heropsycho2177
Date: December 20, 2006 at 07:58:16 Pacific
Reply:

Likely culprits for issues:

1. Ensure your VPN client has the option enabled to force your machine to use the VPN connection's default gateway. Split tunneling (when this option is disabled) can cause these type of issues, especially if your router configures your home machines with its own IP as a DNS server. Not to mention split tunneling is a major security risk...

2. Ensure your VPN connection is at the top of the binding order.

3. Ensure your router if you have one supports VPN passthrough.

4. If none of these remedy the problem, you need to narrow down the precise issue. At this point, we don't know if you're getting a valid IP address for your VPN connection, if this is a simple name resolution problem, if you can actually connect to anything. Run IPConfig /all and see if your IP addy is valid for the VPN connection. If it is, start pinging the web servers by IP address instead of by name. Also try to ping the default gateway and DNS servers of the VPN connection. If you can't ping anything by IP, that means all connectivity isn't working.
"Enough, enough bowing down to disillusion!
Hats off & applause to rogues & evolution!
The ripple effect is too good not to mention.
If you’re not affected, you’re not paying attention!"


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Response Number 4
Name: Gopala Dandu (by gkraju747)
Date: December 20, 2006 at 09:37:41 Pacific
Reply:

hi heropsycho2177,

ty for ur response.

the ip is 192.168. address with which I am able to connect to the internet. I have DSL and no router installed. But even after i connect to the VPN, the ip still remains the same, I mean it does not change to a valid ip that is suited for the VPN, if that makes any sense. I dont know if it routes autoamatically to my office network or it is suppose to change the ip once VPN is connected.

Like you said I am unable to ping office network neither with the DNS name nor the ip address.

Gopal Krishna


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Response Number 5
Name: heropsycho2177
Date: December 20, 2006 at 10:45:19 Pacific
Reply:

"the ip is 192.168. address with which I am able to connect to the internet. I have DSL and no router installed."

The mere fact that you have a class C private IP address suggests that you are behind a NAT device. Make sure your DSL modem is not a router, too. If it isn't, then your ISP is using NAT, and you're probably screwed.

"But even after i connect to the VPN, the ip still remains the same, I mean it does not change to a valid ip that is suited for the VPN, if that makes any sense."

Most VPN clients create a virtual network connection for the VPN, or a "VPN Adapter" visible within Network Connections. Using IPConfig /all will show IP addresses of all connections. Look for your VPN adapter's config info, not your physical NIC.

"Enough, enough bowing down to disillusion!
Hats off & applause to rogues & evolution!
The ripple effect is too good not to mention.
If you’re not affected, you’re not paying attention!"


0

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