3Com SUPERSTACK 3 WEBCACHE 3000 User Manual page 333

I
T R
RACE OUTE
The Trace Route feature allows you to display the network hops from the
Webcache to a device on an IP network.
A symbol may be displayed after a network hop which provides further
information about that hop. The symbol may indicate systems that are
unwilling to participate in a traceroute, or a problem with the system
concerned.
The symbols and their meanings are shown in
Table 22 Trace Route Symbols
Symbol
!H
!N
!P
!S
!F
!X
!N
Example
2.router1 (192.168.1.255) 26.027ms !H, 27.156ms!H,44.902ms !H
In this example, is displayed after every network hop for the system
!H
, indicating that the system is unreachable.
router1
For further information about the Trace Route feature, see
Trace Route" on page 229
S
YMBOLS
Meaning
Host unreachable
Network unreachable
Protocol unreachable
Source Route failed
Fragmentation needed
Communication administratively prohibited
ICMP unreachable code N
and "Tracing IP Addresses"
Table 22.
"Performing a
on page 263.