Subnet mask

KarimbruxellesKarimbruxelles Posts: 7Users Awaiting Email Confirmation ■□□□□□□□□□
Hi,
I'm still really confuse with the subnet mask
What I don't understand is why some Network admin use the 3rd byte from the subnet instead of 2nd byte (look at the 24icon_cool.gif it should be at the 2nd byte or?

eg:

62.161.99.115
255.255.248.0


Thanks for your help

Comments

  • EdTheLadEdTheLad Posts: 2,112Member ■■■■□□□□□□
    Hi,
    I'm still really confuse with the subnet mask
    What I don't understand is why some Network admin use the 3rd byte from the subnet instead of 2nd byte (look at the 24icon_cool.gif it should be at the 2nd byte or?

    eg:

    62.161.99.115
    255.255.248.0


    Thanks for your help

    Why dont you read a book?This forum is full of info regarding subneting.
    The mask is important when deciding how many hosts you want to support on your network.
    Networking, sometimes i love it, mostly i hate it.Its all about the $$$$
  • nothing_ptnothing_pt Posts: 44Member ■■□□□□□□□□
    Hi,
    I'm still really confuse with the subnet mask
    What I don't understand is why some Network admin use the 3rd byte from the subnet instead of 2nd byte (look at the 24icon_cool.gif it should be at the 2nd byte or?

    eg:

    62.161.99.115
    255.255.248.0


    Thanks for your help

    By the way the 2nd byte is used as well. That is a Class A address with 13 bits borrowed from the host portion, allowing for 8190 subnets with 2046 hosts each. That's the purpose of subnetting, a better use of address space and improve future scalability.
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