Figure 27 Introduction of CIDR and Route Aggregation

If you borrow six bits from the fourth octet and leave two bits for the host portion, the result is as follows:

In this case, the serial line addresses are 131.108.2.0 and 255.255.255.252, and the host addresses are 131.108.2.1 and 131.108.2.2. You cannot assign addresses of 131.108.2.0 and 131.108.2.3 as the host address because they become the broadcast address for this subnet. This way, you then can reach 131.108.2.252.255.255.252.0 with the host addresses of 131.108.2.253 and 131.108.2.254. Similarly, you cannot assign host addresses of 131.108.2.252 and 131.108.2.255 because they are the broadcast address for this subnet.

Was this article helpful?

0 0

Post a comment