Refer to the exhibit. After redistribution is enabled between the routing protocols; PC2, PC3, and PC4 cannot reach PC1. Which action can the engineer take to solve so all the PCs are reachable?

The correct answer is A. Filter the prefix 10.1.1.0/24 when redistributed from OSPF to EIGRMP. It seems there is a loop is because of mutual redistributions among RIP, OSPF and EIGRMP domains. So we should filter out the prefix 10.1.1.0/24 when redistributed from OSPF to EIGRMP (the second redistribution point) to prevent routing loop.

Layer 3 Technologies

Question

Refer to the exhibit. After redistribution is enabled between the routing protocols; PC2, PC3, and PC4 cannot reach PC1. Which action can the engineer take to solve so all the PCs are reachable?

Options

AFilter the prefix 10.1.1.0/24 when redistributed from OSPF to EIGRMP.
BSet the administrative distance 100 under the process on R2.
CFilter the prefix 10.1.1.0/24 when redistributed from RIP to EIGRMP.
DRedistribute the directly connected interfaces on R2.

How the community answered

(57 responses)

A
58% (33)
B
12% (7)
C
23% (13)
D
7% (4)

Explanation

It seems there is a loop is because of mutual redistributions among RIP, OSPF and EIGRMP domains. So we should filter out the prefix 10.1.1.0/24 when redistributed from OSPF to EIGRMP (the second redistribution point) to prevent routing loop.

Topics

#Routing Protocols#Redistribution#Routing Loops#Route Filtering

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