What's new on the 127.0.0/24 block in 7?

[Chris H.]

Quoting "Chris H." <chris#@1command.com>:

> Quoting Lowell Gilbert <freebsd-stable-local at be-well.ilk.org>:
>
>> "Chris H." <chris#@1command.com> writes:
>>
>>> Yes, adding an entry in /etc/rc.conf that provides 254 IP's now
>>> reveals:
>>> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
>>>        inet6 ::1 prefixlen 128        inet6 fe80::1%lo0 prefixlen 64
>>> scopeid 0x3        inet 127.0.0.1 netmask 0xffffff00
>>>
>>> as opposed to: 0xffffffff.
>>
>> Let's peel this issue back to the basics.
>>
>> This does *not* have 254 IP addresses on that interface.  The
>> interface still has only one address on that interface.  There are 254
>> other addresses on the subnet, but only one of them belongs to your
>> machine.  If you want the machine to answer to 127.0.0.2, you still
>> need to add it separately.
>
> Yes. Of course. In the same way one might add /any/ address to their
> "working pool" - eg;
> ifconfig_lo0="inet 127.0.0.1  netmask 255.255.255.224"
> which could/might be followed by
> ifconfig_lo0_alias0="inet 127.0.0.2 netmask 255.255.255.255"
> etc...
> 127.0.0.0 - NET
> 127.0.0.255 - BCAST
<strike>127.0.0.255 - BCAST</strike>
127.0.0.31 - BCAST
>
> In spite of the way I announced/described all this,
> I'm actually familiar with the whole thing.

Then why did you claim 255 addresses on a /27 in
your post.

> My only
> interest was in determining why the netmask defaulted
> to 0xffffffff (255.255.255.255) on the lo0 interface
> in my 7-RC3 install. While all of my RELENG_6 servers
> happily provided 0xff000000. After much examination,
> and research, I could find no apparent reason. So
> decided to ask here.
>
> Thank you for taking the time to respond.
>
> --Chris H
>
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>
>
>
> -- 
> panic: kernel trap (ignored)
>
>
>
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-- 
panic: kernel trap (ignored)