Chapter 4 Troubleshooting 83

DHCP Server assigns IP addresses to clients

WINS Server provides a translation of the NetBIOS domain name to the IP address

DNS Server provides a translation of the IP Host name to the IP address

Master Browser is an elected host that maintains lists of all NetBIOS resources

Domain Controller maintains a list of all clients in the NetBIOS domain and manages administrative requests such as logins

VPN Router terminates tunnels and routes Microsoft networking requests

The following questions and answers are particularly directed toward the WINS server and browsing issues. These questions and answers can help verify whether you correctly set up these components.

What needs to be configured on the VPN Router for network browsing?

In the group profiles, set the values of the DNS server and the WINS server. Remember that these are inherited values, so that if all subgroups of a given group use the same servers, it is sufficient to configure them in the parent group.

If these servers are not on a directly reachable subnet from the VPN Router, or accessible through a default VPN Router, you must configure a static route on the VPN Router to reach them.

What should be configured on the PPTP or IPsec client?

The client needs the protocols for NetBIOS and TCP/IP configured. NetBEUI is not normally configured.

Configure a Windows 95 or Windows 98 client so that it is in the correct workgroup for the NT domains it is trying to reach. For example, if there are domains named Engineering and Admin, and the client is to use the Engineering domain, then you must configure it that way.

For PPTP only, you must also select Log onto Network under My Computer > Dial Up Networking > Connection_Name.

Nortel VPN Router Troubleshooting

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Nortel Networks NN46110-602 manual What should be configured on the Pptp or IPsec client?