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VPN Connects but no remote network access

Posted on 2011-05-10
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Last Modified: 2012-05-11
Hi everyone,

I was hoping someone could help me with this,

We have a Cisco Firewall/VPN, Cisco ASDM 6.3 for ASA which customers VPN onto, so they can access our network, this works fine for almost everyone.

One of our customers has problems when they connect to our VPN from their own site, the VPN Connects, but they then cannot access any of the VPN Network resources.

They are unable to ping any of the network resources or external IP Address of the routers and also the company website becomes unavailable.

When the customer disconnects from the VPN they can then access our website again.
I have tried various things, but no joy as yet.

Does anyone have any suggestion, they would be most appreciated.
Thanks
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Question by:jimboyle1981
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Expert Comment

by:jmeggers
ID: 35729322
Is that customer getting an address from the same VPN pool as everyone else?  If so, are other VPN users able to get to the other resources that this customer is not?
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Author Comment

by:jimboyle1981
ID: 35729422
Hi,
Thanks for the reply
Yes the customer gets an IP Address from the Address Pool on the Cisco device, there are a few users at this customer site who all have the same issue, they can connect to the VPN but cannot access any network resources. If they try and connect to the VPN from any other location using the same laptops they can then access the network resources Ok.
I have been told by the customers IT that they are not blocking anything at their end, and it must be something on the routing at our end, but can’t think what.
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LVL 20

Expert Comment

by:Svet Paperov
ID: 35732048
What is the IP address range used by your clients on their site? If it overlaps with yours, provided by the VPN, they will have any kind of problems.
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Accepted Solution

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jimboyle1981 earned 0 total points
ID: 35736054
hi guys, thanks for the comments,
I fixed this by going into the Cisco Systems VPN Adapter Properties, selected ‘Use this connection’s DNS suffix in DNS registration’ and manually added our 2 dns servers and this now seems to work Ok.
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Author Closing Comment

by:jimboyle1981
ID: 35767524
Fixed this myself
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