Re: subnetting C class into /26 /25 /26, why can this be done?

From: Martin Hermanowski (martin_at_mh57.de)
Date: 08/27/03

  • Next message: Robert Watson: "Re: mbuf usage for an idle machine"
    Date: Wed, 27 Aug 2003 16:35:30 +0200
    To: Christoffer Pio <cp@cvt.dk>
    
    
    

    On Wed, Aug 27, 2003 at 04:04:26PM +0200, Christoffer Pio wrote:
    > Is it not possible to subnet a C class into 3 nets, like
    >
    > 0-63

    x.x.x.0/26

    > 64-191 <-- Offending network (?)

    x.x.x.64/26 + x.x.x.128/26

    This cannot be written as a /25, and there is no netmask that would
    match.

    > 192-255

    x.x.x.192/26

    > If so, why is this?

    LLAP, Martin

    
    



  • Next message: Robert Watson: "Re: mbuf usage for an idle machine"

    Relevant Pages

    • update(2): boot-image from network-boot server does not apply netmask on V440, doesnt contact gatewa
      ... Rebooting with command: boot ... for ARP/RARP packet Timeout waiting for ARP/RARP packet 4000 ... but then sets an incorrect netmask and thus fails to proceed ... the local subnet to find the Ethernet address of him. ...
      (SunManagers)
    • Re: 2 Nics and default route
      ... >> kernel figures out which interface to use to get to it. ... >> If for some reason you want the cards addressed in the same subnet, ... >> be done by artificially restricting the netmask, ... All machines in the subnet should have the same netmask set and you ...
      (comp.unix.bsd.openbsd.misc)
    • update(3): boot-image from network-boot server does not apply netmask on V440, doesnt contact gatewa
      ... the netmask from the boot-server is not taken: ... RPC-BOOTP FROM BOOT-SERVER ON LOCAL SUBNET, ... Subject: update: boot-image from network-boot server does not apply ...
      (SunManagers)
    • Re: Linux router w/3 nics - need help with routing
      ... netmask and broadcast, or if one leads only to the default gw, it ... under eth0 with 192.168.0.0/24 network is wrong). ... that one to a more limited subnet of your main subnet. ... > then install the route I want. ...
      (comp.os.linux.networking)
    • Re: Subnetting/Routing
      ... >>NITPICKING over netmask number's adds nothing to solve the original ... Which was the Whole point of my original post. ... > the subnet problems. ... Years of schooling to learn a few simple rules.. ...
      (comp.os.linux.networking)