Re: Can I subnet my network like this ?

From: Jan Grant (Jan.Grant_at_bristol.ac.uk)
Date: 07/30/03

  • Next message: Steve Ames: "Re: Can I subnet my network like this ?"
    Date: Wed, 30 Jul 2003 13:59:31 +0100 (BST)
    To: Supote Leelasupphakorn <pjn0211@yahoo.com>
    
    

    On Wed, 30 Jul 2003, [iso-8859-1] Supote Leelasupphakorn wrote:

    > Hi, all
    >
    > I would like to verify my knowledge
    > by building the network like below but not
    > sure whether it's impossible for subnetting
    > like this - say, from Gateway no2, is divided
    > to 172.16.0.0/16 and 172.17.0.0/16 subnet.

    There should be no problems doing what you suggest.

    > I heard that it isn't recommend or
    > impossible (not sure again) to use FIRST or
    > LAST subnet in the allocated IP address pool,
    > is it?

    This is no longer the case. It stems from (a misunderstanding of?) the
    "all zeros" or "all ones" network treatment (and by extension, subnets),
    but I don't think any kit behaves like that in these CIDR days. In any
    case, 172.16/16 and 172.17/16 are (were) both "full class B" ranges so
    anything broken enough to care ought to behave properly anyway.

    -- 
    jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/
    Tel +44(0)117 9287088 Fax +44 (0)117 9287112 http://ioctl.org/jan/
    Random act of violence against bread: whole pint.
      -- extract from the "Hawk the Slayer" drinking game
    _______________________________________________
    freebsd-net@freebsd.org mailing list
    http://lists.freebsd.org/mailman/listinfo/freebsd-net
    To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
    

  • Next message: Steve Ames: "Re: Can I subnet my network like this ?"

    Relevant Pages

    • Re: Can I subnet my network like this ?
      ... > I would like to verify my knowledge ... > sure whether it's impossible for subnetting ... "all zeros" or "all ones" network treatment, ... but I don't think any kit behaves like that in these CIDR days. ...
      (freebsd-isp)
    • Re: Can I subnet my network like this ?
      ... > I would like to verify my knowledge ... > sure whether it's impossible for subnetting ... "all zeros" or "all ones" network treatment, ... but I don't think any kit behaves like that in these CIDR days. ...
      (freebsd-questions)
    • Re: 291 IP Addressing Help
      ... My problem is that I cannot see, understand, the uses for subnetting. ... then I keep on trying to make sense of it all on my home network ... IP addressing and that was my lowest. ... I can go to get extra material to help me study for the exam again by ...
      (microsoft.public.cert.exam.mcsa)
    • Re: subnetting
      ... subnetting the network. ... agree that vlan subnetting has it's advantages(i.e reducing broadcast ... on a 400 node network. ...
      (comp.dcom.sys.cisco)
    • Re: subnetting (helps security)
      ... I am studying subnetting and I have a few question, ... I will take as an example the network address, ... If I borrow 1 bit the result is: ... 16 combinations or 2 to the power of 4 ...
      (alt.computer.security)