Refer to the exhibit. Router RTA is the hub router for routers RTB and RTC. The Frame
Relay network is configured with EIGRP, and the entire network is in autonomous system 1.
However, router RTB and RTC are not receiving each other’s routes. What is the solution?
Select the best response.
A.
Configure the auto-summarycommand under router eigrp 1on router RTA.
B.
Issue the no ip split horizoncommand on router RTA.
C.
Configure sub interfaces on the spoke routers and assign different IP address subnets
for each sub interface.
D.
Check and change the access lists on router RTA.
E.
Issue the no ip split horizon eigrp 1command on router RTA.
F.
Configure a distribute list on router RTA that allows it to advertise all routes to the spoke
routers.
Explanation:
RTB and RTC cannot see each other because of the split horizon rule: “A router never
sends information about a route back in same direction which is original information came”.
To overcome this problem we can configure subinterfaces or disable split horizon with the
command “no ip split horizon eigrp 1″on RTA.