What single access list statement matches all of the following networks?

192.168.16.0

192.168.17.0

192.168.18.0

192.168.19.0

  • access-list 10 permit 192.168.16.0 0.0.3.255
  • access-list 10 permit 192.168.16.0 0.0.0.255
  • access-list 10 permit 192.168.16.0 0.0.15.255
  • access-list 10 permit 192.168.0.0 0.0.15.255
    Answers Explanation & Hints:
    The ACL statement access-list 10 permit 192.168.16.0 0.0.3.255 will match all four network prefixes. All four prefixes have the same 22 high order bits. These 22 high order bits are matched by the network prefix and wildcard mask of 192.168.16.0 0.0.3.255.