Which Cisco IOS statement would correctly match only the IP range from 172.30.64.0 through 172.30.127.255?

A) access-list 1 permit 172.30.64.0 0.0.63.255
B) access-list 1 permit 172.30.0.0 0.0.63.255
C) access-list 1 permit 172.30.64.0 0.0.127.255
D) access-list 1 permit 172.30.0.0 0.0.127.255


A
Explanation: A) The range from 172.30.64.0 through 172.30.127.255 relates to the 255.255.192.0 subnet mask. To match this using a wildcard mark, use the 0.0.63.255 mask; this results in the access-list 1 permit 172.30.64.0 0.0.63.255 statement.

Computer Science & Information Technology

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