CCNP 350-401 ENCOR Question 172 DISCUSSION
« Back to Main MenuRefer to the exhibit. R1 is able to ping the R3 fa0/1 interface. Why do the extended pings fail?
A. R2 and R3 do not have an OSPF adjacency
B. The DF bit has been set
C. R3 is missing a return route to 10.99.69.0/30
D. The maximum packet size accepted by the command is 1476 bytes
Refer to the exhibit. R1 is able to ping the R3 fa0/1 interface. Why do the extended pings fail?
A. R2 and R3 do not have an OSPF adjacency
B. The DF bit has been set
C. R3 is missing a return route to 10.99.69.0/30
D. The maximum packet size accepted by the command is 1476 bytes
Correct Answer: B
R1 sends the ping with a packet size of 1500 and the DF bit set (=R1 is not allowed to fragment the ping). R2 only accepts packets with the size of 1492. Therefor the ping gets discarded from R2.
To solve this, dont set the DF bit or lower the packet size