User Manual

IP Establishing Sessions
6-9
6.5.1 Telnet and Rlogin Sessions
Telnet is an industry-standard protocol that enables users anywhere on a network to access a remote host
and start a terminal session. Telnet connections do not require that either end of the connection know the
hardware/software used on the other end; for example, if user Bob connects to host athena’s platform (see
Figure 6-20), athena doesn’t know what terminal type Bob is using, and Bob doesn’t know athena’s
platform or operating system.
Figure 6-20: Telnet Connections
Rlogin connections are similar to Telnet connections, however, Rlogin enables trusted users to log into a
host without password verification.
6.5.1.1 Outgoing Telnet/Rlogin Connections
To establish an outgoing Telnet connection, use the Telnet command. To establish an outgoing Rlogin
connection, use the Rlogin command. Either a text host name or an IP address may be specified.
Figure 6-21: Outgoing Telnet/Rlogin Connections
Note: For information on resolving host names, see Name Resolving on page 6-6.
By default, Telnet and Rlogin connections will be made to a preset port number. To connect to a different
port number, use the Telnet/Rlogin commands in conjunction with a port number (prefaced by a colon).
Figure 6-22: Telnetting to a Specific Port Number
Local>> TELNET athena
Local>> TELNET 192.0.1.15
Local>> RLOGIN 192.0.1.15
Local>> TELNET athena:145
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