Refer to the exhibit. An engineer troubleshoots a connectivity problem that is impacting the communication from the users at segment 172.16.3.16 /28 to the server farm at 192.168.5.16/ 28. Which configuration resolves the issue on router R1?
After investigating a little bit more Im going with C. I have found this article that actually agrees with Pietjeplukgeluk. Any value greater than 15 will be considered infinite.
https://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routing-protocol-eigrp/8606-redist.html
The exhibit shows
R2:
router rip
redistribute ospf 1 metric 15
On R3 we see the R1 connected link 192.168.250.0 [120/15]
So we need to reduce the metric to 14, by the time it reaches R3 the metric will be 15. Mac metric rip = 16.
R3 is getting the R1 connected link through R2 redsitribution, presumably theres a ,link problem between R3 and R1.
Answer = C.
update: There is no like problem between R3 and R1. R2 did redistribution first, that's why there's no route.
Answer = C. Redistribute metric 14, it stays as metric 14 when arriving on R3 (I labbed it) and it gets metric 15 when arriving on R4.
The metric on R3 = 15.
When R2 and R1 redistributed with metric 15, the metric stayed as 15 when going to R3. It was 16 when arrived at R4. Max metric is 16. Therefore R4 has no ip route, and traceroute fails. When redistributing with metric 14, the route gets advertised as metric 14 to R3. Advertised as 15 to R4.
We see one route to the 192.168.56.16 network on R3, the route points to the neighbor that did the ospf to rip redistribution first.
If you see the metric in R3 it is [110/15], in R4 you do not get the route, in my opinion, C is wrong because if the metric is configured in 15 reducing it to 14 will not help to deliver the route.
we are redistributing with metric 15 currently. On next hop router it is metric 15 on R3. On R4 it gets metric 16 and poisoned out - max metric = 16. So we need to redistribute metric 14, it reaches ER3 with metric 14. The reason why the metric didn't increase from R1 to R3 is because R1 is advertising the route, it didn't originate the route.
My choice is C:
"RIP uses the hop count as a routing metric. RIP prevents routing loops by implementing a limit on the number of hops allowed in a path from the source to a destination. The maximum number of hops allowed for RIP is 15. This hop limit, however, also limits the size of networks that RIP can support."
https://community.cisco.com/t5/networking-knowledge-base/ripv2-routing-information-protocol/ta-p/3117425
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