Hi. /31 on ethernet links

[Freddie Cash]

Reading the man page for ifconfig will show the "ptp" option for ifconfig,
that configures the interface as a point-to-point interface..  :)



On Fri, Oct 30, 2009 at 5:22 PM, Sebastian Hyrwall <sh at keff.org> wrote:

> Chuck Swiger skrev:
>
>> On Oct 30, 2009, at 4:46 PM, Sebastian Hyrwall wrote:
>>
>>> Is there any way to use /31's on ordinary ethernet links in 7.2?
>>> "ifconfig addr dest-addr" does not work either. It keeps setting the last ip
>>> as broadcast.
>>>
>>
>> A /31 subnet is only defined for point-to-point network links, per:
>>
>>  http://www.rfc-editor.org/rfc/rfc3021.txt
>>
>> Ordinary ethernet links have BROADCAST flag set instead of POINTOPOINT.
>>
>> Regards,
>>
> Well how do I set the POINTOPOINT flag and remove the BROADCAST-flag on
> ethernet links? Or are you implying that it does not belong on ethernet
> links :)
> Cause Cisco and Linux support /31 (ptp's) on ordinary ethernet links.
>
> Sincerely,
>
> Sebastian H
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-- 
Freddie Cash
fjwcash at gmail.com