How do I construct the access-list to match prefix/prefix-length? Not only prefix. I am reading the CCNP routing study guide (642-802) and autor says by implementing an extended ACL (source address should match the prefix and destination address should match the prefix length).
But offset-list EIGRP router command do not allow extended access-list in parameters!!!!
I am testing using GNS3 with IOS Version 12.4(17a).