Pertemuan 19
Examining the Routing Table
1
Discussion Topics
•
•
•
•
•
•
•
•
•
The show ip route command
Determining the gateway of last resort
Determining the route source and destination
Determining L2 and L3 addresses
Determining the route administrative distance
Determining the route metric
Determining the route next hop
Determining the last route update
Observe multiple paths to destination
2
The show ip route Command
The show ip route command displays the contents
of the IP routing table.
Static Routing
Dynamic Routing
Default Route
Configuring a Default Route
Determining Route Source
and Destination
Determining L2 and L3
Addresses
Determining Administrative
Distance
Determining the Route Metric
Routing protocols use metrics to determine
the best route to a destination.
Determining the Route Next
Hop
• Destination next hop associations
determine the best path and which router
to forward the packet to next. This router
represents the next hop on the way to the
final destination.
Determining the Last Routing
Update
• Use the following commands to find the
last routing update:
– show
– show
– show
– show
ip
ip
ip
ip
route
route network
protocols
rip database
Observing Multiple Paths to a
Destination
• Some routing protocols support multiple
paths to the same destination.
• Unlike single path algorithms, these multipath algorithms permit traffic over multiple
lines, provide better throughput, and are
more reliable.