Quick Reference Guide

436 System Management
www.dell.com | support.dell.com
DELL CONFIDENTIAL – PRELIMINARY 5/15/12 – FOR PROOF ONLY
The following table describes characters that may appear in the traceroute command output.
telnet
The telnet User EXEC mode command enables logging on to a host that supports Telnet.
Syntax
• telnet { ip-address | hostname } [ port ] [ keyword1...... ]
•
ip-address — IP address of the destination host.
•
hostname — Host name of the destination host. (Range: 1 - 158 characters)
•
port — A decimal TCP port number, or one of the keywords listed in the Ports table in the
User Guidelines.
•
keyword — One or more keywords listed in the Keywords table in the User Guidelines.
Default Configuration
The default port is the Telnet port (decimal23) on the host.
Command Mode
User EXEC mode.
User Guidelines
• Telnet software supports special Telnet commands in the form of Telnet sequences that map
generic terminal control functions to operating system-specific functions. To enter a Telnet
sequence, press the escape sequence keys (Ctrl-shift-6) followed by a Telnet command character.
Field Description
* The probe timed out.
? Unknown packet type.
A Administratively unreachable. Usually, this output indicates that an access list is blocking
traffic.
F Fragmentation is required and DF is set.
H Host unreachable.
N Network unreachable.
P Protocol unreachable.
Q Source quench.
R Fragment reassembly time exceeded.
S Source route failed.
U Port unreachable.