I would like to block following address range on my router ext int.
22.214.171.124 - 126.96.36.199.
Will the mask be 0.15.255.255.
Should I follow access-list 101 deny ip 188.8.131.52 0.15.255.255 any.And add access group 101 to int.
Correct if I am wrong mask..
for below range.
184.108.40.206 - 220.127.116.11
It should go like this 0.7.255.255?
You are correct
18.104.22.168 - 22.214.171.124 = 0.15.255.255
126.96.36.199 - 188.8.131.52 = 0.7.255.255
Make sure you put this deny before any entries that may match any of the address's with a permit.