Refer to the exhibits. Router B should advertise the network connected to the E0/0/0
interface to router A and block all other network advertisements. The IP routing table on
router A indicates that it is not receiving this prefix from router B.
What is the probable cause of the problem? Select the best response.
RouterB#show ip eigrp neighbors
IP-EIUGRP neighbors for process 1
H Address Interface Hold Uptime SRTTRTO Q Seq Type
(sec) (ms)Cnt Num
0 10.255.1.1 Se0/0 138 00:15:26 26582 0 3
RouterB#
RouterB#debug ip eigrp
IP-EIUGRP Route Events debugging is on
02:17:54: IP-EIUGRP: 192.168.3.16/28 – denied by distribute list
02:17:54: IP-EIUGRP: 192.168.3.32/28 – denied by distribute list
02:17:54: IP-EIUGRP: 10.255.1.0/30 – denied by distribute list
02:17:54: IP-EIUGRP: 192.168.3.0/24 – denied by distribute list
02:17:54: IP-EIUGRP: 10.0.0.0/8 – denied by distribute list
A.
An access list on router B is causing the 192.168.3.16/28 network to be denied.
B.
An access list on router B is causing the 192.168.3.32/28 network to be denied.
C.
The distribute list on router B is referencing a numbered access list that does not exist on
router B.
D.
The distribute list on router B is referencing the wrong interface.
Explanation:
This is an unclear question. The question says “Router B should advertise the network
connected to the E0/0/0 interface to router A and block all other network advertisements.
The IP routing table on router A indicates that it is not receiving this prefix from router B.”
That means the network 192.168.3.16/28 (including the IP 192.168.3.21/28) is not received
on router A -> A is the most suitable answer.
Note: Distribute list are used to filter routing updates and they are based on access lists.