Router R1 has been configured for EIGRP. The configuration also includes an ACL with one
line–access-list 1 permit 10.100.32.0 0.0.15.255–and the EIGRP configuration includes the
distribute-list 1 in command. Which of the following routes could not be displayed in the
output of the show ip eigrp topology command as a result?
A.
10.10.32.0/19
B.
10.10.44.0/22
C.
10.10.40.96/27
D.
10.10.48.0/23
E.
10.10.60.0/30
Explanation:
The two listed commands correctly configure EIGRP route filtering such that prefixes
matched by the ACL’s permit clause will be alloweD. All other prefixes will be filtered due to
the implied deny all at the end of the ACL. The ACL permits numbers in the range
10.10.32.0–10.10.47.255, which leaves 1 0.10.48.0 and 10.10.60.0 unmatched by the permit
clause.
Note TYPE-O
10.100.32.0 0.0.15.255
you MEAN 10.10.32.0 0.0.15.255
A is aslo not valid
you type-o’d the cidr too.
10.10.32.0 0.0.15.255 = /20
would 10.10.32.0/19 be matched?
Other wise …you’d be sending out routes to 10.10.48.0 – 10.10.63.255 as well.
10.10.32.0/19 = 10.10.32.0 255.255.224.0
and it is matched by Acl 1 as described.