tion 3 15 Points) Consider the following Internet site. (2001.16.0/24 ( 220.127.116.11/24 (18.104.22.168/24 200 1.21.0/24 Route Advertisement 200 1.22.0/24 Internet R3 R1 Route Advertisement Advertisemen Advertisemel 200 1.23.0/24 Route R4 22.214.171.124/24 2001.19.0/24 The site has 8 class C IP addresses, from 126.96.36.199/24 to 188.8.131.52/24. To reduce the size of the routing tables, address summarization is used. Determine the routes that should be advertised by routers R1,R2 R3 and R4 in order to minimize the number of advertised routes. Over-summarization is not allowed.