Problem:
A router has just received the following new IP addresses: 57.6.96.0/21, 57.6.104.0/21, 57.6.112.0/21, and 57.6.120.0/21. If all of them use the same outgoing line, can they be done aggregated? If so, to what? If not, why not?
Additional Information:
This question is from Computer Science, Networking and it explains about aggregation of IP addresses in the same outgoing line.