Exhibit:
Certkiller router#show ip route
Codes: C – connected, S – static, I – IGRP, R – RIP, M – mobile, B – BGP
D – EIGRP, EX – EIGRP external, O – OSPF, IA – OSPF inter area
N1 – OSPF NSSA external type 1, N2 – OSPF NSSA external type 2
E1 – OSPF external type 1, E2 – OSPF external type 2, EEGP i – IS-IS, L1 – IS-IS level-1, L2 – IS-IS level-2, * -candidate default
U – per-user static route, o – ODR
T – traffic engineered route
Gateway of last resort is not set
172.16.0.0/24 is subnetted, 2 subnets
B 172.16.10.0 [20/0] via 10.1.1.100, 00:00:24
B 172.16.11.0 [20/0] via 10.1.1.100, 00:00:24
172.26.0.0/28 is subnetted, 3 subnets
B 172.26.1.48 [200/0] via 192.168.1.50, 00:00:31 B 172.26.1.32 [200/0] via 192.168.1.50, 00:00:31 B 172.26.1.16 [200/0] via 192.168.1.50, 00:00:31 10.0.0.0/8 is variable subnetted, 2 subnets, 2 masks B 10.0.0/8 [20/0] via 10.1.1.100, 00:00:24
C 10.1.1.0/24 is directly connected, Serial3
192.168.1.0/28 is subnetted, 3 subnets
C 192.168.1.32 is directly connected, Serial1
C 192.168.1.48 is directly connected, Serial2
C 192.168.1.16 is directly connected, Serial0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks B 192.168.2.64/28 [20/0] via 10.1.1.100, 00:00:26
Based on the show ip route output in the exhibit, how can you tell if a BGP route is learned via IBGP or EBGP?
A.
By the Metric
B.
By the Next Hop
C.
By the Admin Distance
D.
By the code “B” or “B Ex”
Explanation:
admin distance. Distance of EBGP is 20, Distance of IBGP is 200.