Understanding the network.pdf - Back to Home

C 172.16.192.0/21 is directly connected, Fddi6/0
B 192.168.176.0/21 [20/0] via 192.168.85.75, 6d14h
C 172.16.181.0/24 is directly connected, Ethernet3/0
0 172.16.186.0/24 [1/0] via 147.225.12.250
0 172.16.185.0/24 [1/0] via 147.225.12.250
C 172.16.191.0/24 is directly connected, FastEthernet2/0
S* 0.0.0.0/0 [1/0] via 147.225.191.220
The command output displays all the known network routes and
the following information (from left to right):
• The source of the route. The legend for all available protocols is displayed at
the top of the route table.
• The network and netmask. The netmask can be displayed using bitcount
(shown), decimal (default), or hexadecimal. To set the netmask display
format, use the command. The command
can be used for a temporary session or used to permanently set the mask format
display in configuration EXEC line mode command:
•
• router# config t
• Enter configuration commands, one per line. End with CNTL/Z.
• router(config)# int vty 0 4
• router(config-line)#ip netmask-format bit-count
• Router(config-line)#^Z
• Router#
•
• The route's administrative distance and routing metric.
• The network's next hop gateway. If the route is learned dynamically, the
route's age or last update time and the interface that the route was learned
on may also be listed.
• The gateway of last resort, if one has been set.
Keep in mind that the routing table displays the best routes, not necessarily all
available routes. Only the route with the best administrative distance/metric will
appear in the table. In cases where routes of equal cost to the same network are
available, both will be listed. Routes to directly connected networks will not appear
for disabled interfaces, and neither will static routes that are dependent on the
disabled interface. All dynamic routing protocols also require that at least one active
interface exists and that its address corresponds to a network being announced by
the protocol. Although it would seem odd to announce a route for a network that is