Refer to the exhibit. Which subnet is redistributed from EIGRP to OSPF routing protocols?
Refer to the exhibit. Which subnet is redistributed from EIGRP to OSPF routing protocols?
Based on the configuration on router R3, it redistributes EIGRP routes to OSPF using a route-map named OSPF-TAG-1. The first prefix-list, OSPF-TAG-PRF, explicitly denies all subnets in the range 10.1.0.0/16 to 10.1.255.0/16. The second prefix-list, OSPF-TAG-PRF-1, permits all subnets in the range 10.2.0.0/18 to 10.2.63.255/18. The route-map OSPF-TAG-1 has an implicit deny at the end, which means only the subnets explicitly permitted by the second prefix-list are redistributed. Among the given options, only the subnet 10.2.2.0/24 falls within the range permitted by the second prefix-list and matches the permit statement of the route-map, making it the correct answer.
Tested on GNS3. It's stupid as hell and I feel dumber for doing it, but A is definitely the answer.
Route-maps will not match on deny ACLs or deny statement prefix-lists. They will ignore them. Sequence 5 of the route map is entirely ignored.
I agree. Prefixes from network 10.1.0.0/16 with length /16-24 are not evaluated in seq 5, but are denied by implicit deny-all at the end of the route-map.
C is the one correct
What about A?
Bit confused why every has A given the logic shown for matching answer A 10.2.3.0/26 would also match?!
On second thought le 24 is /0-24 thus /26 is greater
A is right, permit statement in second route-map and permit int prefix-list with network length <=24, implicit deny at the end of r-map
wrong question both prefix lists are permitting
That's true (deny in first acl and deny in route-map => permit). This question is strange...
No. Deny in the ACL or Prefix list mean that entry is not affected by the route map. Deny means let the route pass. Permit means route map is permitted to take action on that entry.
Even if both are permitting there's a catch all class map(implicit deny) at the end and it will match that and be denied.
A is correct ip prefix-list OSPF-TAG-PRF-1 seq 5 permit 10.2.0.0/18 le 24 the only one match it is 10.2.2.0/24
The correct answer is: A
I'm with A, too
A is correct here
I'm with A. Given answer. It is the only route that match an route-map permit statement because it matches the second prefix-list
The given answer is correct
Its clearly A
The given answer is correct