CIDR Archives

Classless IP Addresses

Posted June 16, 2009August 29, 2009 JayLeave a commentPosted in CCNA (ICND2), Maintenance

So as we have seen in the post Class-full IP addresses, IP addresses are usually put into Class A,B or C. We have also seen that in 1990 CIDR was invented which allowed us to use Classless addresses for routing, and also saving of address spaces. So what is class-less then? If we have […]

CIDR – Classless Inter Domain Routing

Posted June 15, 2009August 29, 2009 Jay2 CommentsPosted in CCNA (ICND2), Maintenance, Networking 101, Routing

CIDR was invented in 1990, and was the change that allowed routers to use classless addresses to route traffic instead of class-full addresses. This helped a huge amount as before its invention, routers could only route traffic based on full classes. If we look at Class A address for example, there are only 126 of […]

AO!P

Anything Over IP

Tag: CIDR

Classless IP Addresses

CIDR – Classless Inter Domain Routing