Routing Commands
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ProSafe Managed Switch
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.
The following shows example CLI display output for the command.
(Switch) #show ip route
Route Codes: R - RIP Derived, O - OSPF Derived, C - Connected, S - Static
B - BGP Derived, IA - OSPF Inter Area
E1 - OSPF External Type 1, E2 - OSPF External Type 2
N1 - OSPF NSSA External Type 1, N2 - OSPF NSSA External Type 2
C 1.1.1.0/24 [0/1] directly connected, 0/11
C 2.2.2.0/24 [0/1] directly connected, 0/1
C 5.5.5.0/24 [0/1] directly connected, 0/5
S 7.0.0.0/8 [1/0] directly connected, Null0
OIA 10.10.10.0/24 [110/6] via 5.5.5.2, 00h:00m:01s, 0/5
C 11.11.11.0/24 [0/1] directly connected, 0/11
S 12.0.0.0/8 [5/0] directly connected, Null0
S 23.0.0.0/8 [3/0] directly connected, Null0
show ip route summary
Use this command to display the routing table summary. Use the optional all parameter to
show the number of all routes, including best and non-best routes. To include only the
number of best routes, do not use the optional parameter.
Format show ip route summary [all]
Modes
• Privileged EXEC
• User EXEC
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.
Term Definition
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