How to Configure a Route summarization or super netting

Route summarization or supernetting is process of reducing number of routes on a router by summarizing similar networks into single subnet. For example, the four networks below have a range of IP addresses from 10.0.0.1 to 10.0.3.255. 10.0.0.0/24 10.0.1.0/24 10.0.2.0/24 10.0.3.0/24 Instead of creating a route for each network on non directly connected router, you can summarize it as single network 10.0.0.0/22 which also gives same IP address range.