swaminathan
12-18-2010, 01:37 PM
Hi
Please explain which criteria differentiate a classful addressing from classless ip addressing!
151.78.1.1/25 ip address is a classless ip address or classful ip address?
I found an interesting discussion in this link http://www.techexams.net/forums/ccna-ccent/15813-classeless-vs-vlsm-vs-cidr.html
In this discussion, I found the statement as follows:
This is incorrect, i can have a classful routing protocol with an address
151.78.1.1/25, in this case i must use /25 throughout my network when using a 151.78.x.x network address.
So I need which factor either the first few bits of an ip address or the subnet mask decides it's type classful or classless?
Thanks
Swaminathan
Please explain which criteria differentiate a classful addressing from classless ip addressing!
151.78.1.1/25 ip address is a classless ip address or classful ip address?
I found an interesting discussion in this link http://www.techexams.net/forums/ccna-ccent/15813-classeless-vs-vlsm-vs-cidr.html
In this discussion, I found the statement as follows:
This is incorrect, i can have a classful routing protocol with an address
151.78.1.1/25, in this case i must use /25 throughout my network when using a 151.78.x.x network address.
So I need which factor either the first few bits of an ip address or the subnet mask decides it's type classful or classless?
Thanks
Swaminathan