Cisco vpn client dns problems
We have recently setup vpn remote access to our company and everything, but one thing is working great. When a user connects by the cisco vpn client they are not able to access the servers here on site by the dns name. For example we have a server by the name of pylon_server. A vpn remote user cannot connect to the server by using \\pylon_server, but instead must use the ip address of \\10.1.1.5. This may be a simple problem to fix, but the COO just called wanting to access the server by name, so I need an answer quickly.
ASKER
The VPN termination point is a Cisco ASA 5510. The remote users are using the Cisco VPN client. I am not looking for a quick fix, but the correct fix.
What is the access-list for the VPN users.
Have you configured your internal DNS IP address for VPN clients as well.
Does your access-list allow UDP/53 from VPN clients.
Have you configured your internal DNS IP address for VPN clients as well.
Does your access-list allow UDP/53 from VPN clients.
ASKER
We are using the permit-ipsec rule so the outside access-list doesn't filter VPN traffic.
SOLUTION
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permit-ipsec is used so that you do not have to allow ipsec traffic inside your firewall.
But once this traffic is decrypted, it is again evaulated against an access-list.
Since this traffic is originating from subnet different from your internal their must exist some acl for the VPN IP Pool.
look for access-list where source ip is from pool you have defined for vpn clients.
Also make sure you have specified a valid DNS server in the configuration.
e.g
vpngroup group_name dns-server x.x.x.x
But once this traffic is decrypted, it is again evaulated against an access-list.
Since this traffic is originating from subnet different from your internal their must exist some acl for the VPN IP Pool.
look for access-list where source ip is from pool you have defined for vpn clients.
Also make sure you have specified a valid DNS server in the configuration.
e.g
vpngroup group_name dns-server x.x.x.x
ASKER
Do you know where you specify the DNS servers when using the Cisco ASDM interface? Sorry about the permit-ipsec comment, we do allow all ip traffic from remote vpn connections into the company.
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Other wise, you need to check if you have allowed access to your internal DNS Server. This could be due to split tunnel VPN config.
What kind of VPN are you using.