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A company is using 3 routers, R1 and R2 are working fine however there neither router can access R3. What is the problem?

R1: ! router eigrp 100 network network no auto-summary !

R2: ! router eigrp 100 network network no auto-summary !

R3: ! router eigrp 700 network network no auto-summary !

Multicast addresses were not added to the Network statement, EIGRP requires multicast addresses.

The AS numbers are incorrect, R3 must be in the same AS as R1 and R2.

R3 has the incorrect AS number, it needs to be in AS 300.

Replace the router as there is a hardware fault.

no auto-summary command in EIGRP configuration is incorrect.

R3 has a faulty cable, Replace the cable and R3 will become available.



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