When you create a new connection using the File menu New... command, you are presented with the "Configure Session" dialog, which allows you to configure the most fundamental parameters affecting a terminal session, including:
"Connection Type": The method of making a connection. Currently Comet allows you to use MacTCP for Telnet network connections and Serial drivers for modem connections; Apple's Comm Toolbox will be supported in the future.
"Terminal Type": The preferred terminal type; the "Automatic" terminal type will default to a vt100 on a serial connection; on a Telnet connection "Automatic" will negotiate the "best" terminal type to use with the host. (Note that some hosts may not perform terminal type negotiations correctly, so "Automatic" mode may fail.)
"Hostname": If you are making a Telnet Connection, this field must contain the IP address or domain name of the host to which you wish to connect. If you need to specify an IP socket other than the standard Telnet socket (23), you can enter the socket number after the IP address or domain name followed by a colon; e.g., "cornellc.cit.cornell.edu:300". Alternatively, you can use the IP address or domain name followed by two periods or spaces; e.g., "cornellc.cit.cornell.edu..300" or "cornellc.cit.cornell.edu 300". Note that MacTCP must be configured correctly in order to make a connection, and that the configuration may need to be updated if you use this copy of MacTCP on another machine. You should contact your network administrator for "advice and consent" if you change your configuration.
If you get a message stating "Can't open MacTCP DNR," replace the "MacTCP DNR" file in the System Folder with a good copy. Trashing the "MacTCP DNR" file and restarting with virus programs off will allow MacTCP to create a good copy automatically when it starts up.