Cisco IOS “show ip route” Field Descriptions 

Field

Description

O

Indicates the protocol that derived the route. It can be one of the following values:

I—Interior Gateway Routing Protocol (IGRP) derived

R—Routing Information Protocol (RIP) derived

O—Open Shortest Path First (OSPF) derived

C—connected

S—static

E—Exterior Gateway Protocol (EGP) derived

B—Border Gateway Protocol (BGP) derived

D—Enhanced Interior Gateway Routing Protocol (EIGRP)

EX—EIGRP external

i—IS-IS derived

ia—IS-IS

M—mobile

P—periodic downloaded static route

U—per-user static route

o—on-demand routing

E2

Type of route. It can be one of the following values:

*—Indicates the last path used when a packet was forwarded. It pertains only to the nonfast-switched packets. However, it does not indicate which path will be used next when forwarding a nonfast-switched packet, except when the paths are equal cost.

IA—OSPF interarea route

E1—OSPF external type 1 route

E2—OSPF external type 2 route

L1—IS-IS Level 1 route

L2—IS-IS Level 2 route

N1—OSPF not-so-stubby area (NSSA) external type 1 route

N2—OSPF NSSA external type 2 route

10.110.0.0

Indicates the address of the remote network.

[160/5]

The first number in the brackets is the administrative distance of the information source; the second number is the metric for the route.

via 10.119.254.6

Specifies the address of the next router to the remote network.

0:01:00

Specifies the last time the route was updated (in hours:minutes:seconds).

Ethernet2

Specifies the interface through which the specified network can be reached.