NETGEAR M4100 Series ProSAFE Reference Manual page 246

Note: If you use the connected keyword for <protocol>, the all option is
not available because there are no best or non-best connected routes.
Format
show ip route [{<ip-address> [<protocol>] | {<ip-address> <mask>
[longer-prefixes] [<protocol>] | <protocol>} [all] | all}]
Modes • Privileged EXEC
• User EXEC
Term Definition
Route Codes The key for the routing protocol codes that might appear in the routing table output.
The show ip route command displays the routing tables in the following format:
Code IP-Address/Mask [Preference/Metric] via Next-Hop, Route-Timestamp, Interface
The columns for the routing table display the following information:
Term Definition
Code The codes for the routing protocols that created the routes.
IP-Address/Mask The IP-Address and mask of the destination network corresponding to this route.
Preference The administrative distance associated with this route. Routes with low values are
preferred over routes with higher values.
Metric The cost associated with this route.
via Next-Hop The outgoing router IP address to use when forwarding traffic to the next router (if any)
in the path toward the destination.
Route-Timestamp The last updated time for dynamic routes. The format of Route-Timestamp will be
• Days:Hours:Minutes if days > = 1
• Hours:Minutes:Seconds if days < 1
Interface The outgoing router interface to use when forwarding traffic to the next destination. For
reject routes, the next hop interface would be Null0 interface.
To administratively control the traffic destined to a particular network and prevent it from
being forwarded through the router, you can configure a static reject route on the router. Such
traffic would be discarded and the ICMP destination unreachable message is sent back to the
source. This is typically used for preventing routing loops. The reject route added in the RTO
is of the type OSPF Inter-Area. Reject routes (routes of REJECT type installed by any
protocol) are not redistributed by OSPF/RIP. Reject routes are supported in both OSPFv2
and OSPFv3.
M4100 Series ProSAFE Managed Switches
Routing Commands
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