A few simple questions(finding ips, "broadband")

First question - nslookup finds the IP address or the domain name of a web server(or other computer, I suppose) on the internet using either a domain name or an IP(for the most part). Is there an equivalent for an intranet? Is there a command that I can use to find the IP address of a computer that I provide the name of, or vice versa(provide the ip and get the name).

I noticed that if I ping a computer on the intranet, it displays the IP of that computer, but that still is not a command specifically for that purpose, and pinging by IP does not display the name. I know there are utilities for this but I am looking for a way to do it entirely using Windows.

Second question - What sets a "broadband" router apart from a normal router? Is a broadband router simply capable of transfering data at higher speeds?

Third question - I notice that in a lot of routers you are able to set the internet connection type, for example to PPPoE, and then set the password and such like that... Well, if the connection is coming through the modem, there is no reason to set any of this, it just simply receives the internet connection from the modem. Does this mean that the router is capable of acting as a modem so long as the settings are set correctly with the correct username, password, etc?

 

Does this help ?

 

I'm by no means a DNS expert, so someone else might have a better answer, but I'll try taking a whack at your first question...

NSLOOKUP will query your DNS servers for a forward lookup (resolving a name to an IP) or a reverse lookup (resolving an IP to a name). If you have an internal DNS server, you should be able to lookup your internal workstations and servers based on the FQDN or IP address. You can determine your DNS servers by doing an "IPCONFIG /ALL" from the command prompt. If your DNS servers are not internal (local), you may be relying upon WINS to resolve NetBIOS names on the local network. Also, on a Windows computer, you can use the "-a" parameter with PING and have it attempt to resolve an IP address to a name.

 

Thanks, both of you helped.