Results 1 to 3 of 3

Thread: Cidr

  1. #1


    Hi Guys, wat is meant by CIDR......then its use............

  2. #2
    Junior Member
    Join Date
    Apr 2007

    Re: Cidr

    CIDR stands for classless inter-domain routing.
    Previously IP addresses were managed by organisations on the basis of classes.
    There are mainly four classes of IP addresses (Class A-D)
    Each class specifies number of hosts that can be present on the network. Class B was the most used one. e.g.
    Class # Network Bits # Hosts Bits Subnet mask
    Class B 16 bits 16 bits

    A class B address means maximum number of 2^16=655535 host addresses for each N/w address. But the Classes used meant wastage of IP addresses.

    Therefore CIDR was introduced in which network bits can be assigned values according to usage e.g. means that network address is and hosts range from BGP/OSPF/ISIS supports CIDR.

    Last edited by pisces_sangha; 05-26-2007 at 10:29 AM. Reason: addtional information added

  3. #3
    Junior Member
    Join Date
    Jan 2008

    Re: Cidr

    CIDR means classless Inter Domain Routing

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
About us
Applying for a job can be a stressful and frustrating experience, especially for someone who has never done it before. Considering that you are competing for the position with a at least a dozen other applicants, it is imperative that you thoroughly prepare for the job interview, in order to stand a good chance of getting hired. That's where GeekInterview can help.