Using x.x.x.0 and x.x.x.255 host addresses in supernets.
Jon Lewis
jlewis at lewis.org
Tue Jan 8 14:50:13 UTC 2008
On Tue, 8 Jan 2008, Joe Provo wrote:
> Yes. Efficient address utilization is a Good Thing.
>
>> I realize that technically they are valid addresses, but does anyone
>> assign a node or server which is a member of a /22 with a x.x.x.0
>> and x.x.x.255?
>
> Great for router interfaces, loops, etc where you don't care that
> broken or archaic systems cannot reach them, and where the humans
> interacting with them should have no issues.
Until you assign a .255/32 to a router loopback interface and then find
that you can't get to it because some silly router between you and it
thinks '.255? that's a broadcast address.'
Been there...had to change the loopback IP.
----------------------------------------------------------------------
Jon Lewis | I route
Senior Network Engineer | therefore you are
Atlantic Net |
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