Date: Mon, 19 May 1997 18:36:06 +0200 From: j@uriah.heep.sax.de (J Wunsch) To: freebsd-current@FreeBSD.ORG (FreeBSD-current users) Cc: wollman@khavrinen.lcs.mit.edu (Garrett Wollman) Subject: Re: All zeros still recognized as broadcast?? Message-ID: <19970519183606.JC27358@uriah.heep.sax.de> In-Reply-To: <199705191619.MAA20016@khavrinen.lcs.mit.edu>; from Garrett Wollman on May 19, 1997 12:19:19 -0400 References: <19970519170904.LV61260@uriah.heep.sax.de> <199705191619.MAA20016@khavrinen.lcs.mit.edu>
next in thread | previous in thread | raw e-mail | index | archive | help
As Garrett Wollman wrote:
> The all-zeros address really means ``this host'' or ``I don't know'',
> but for our purposes treating it as a broadcast address gives useful
> enough behavior.
But i thought this was only for 0.0.0.0? So the unability to use my
own net number as an ethernet IP address is set in stone once and
forever?
> > Also, i can't get rid of this bogus cloned route. A route delete
> > gives me ``Not in table''.
>
> ifconfig .... delete ....
This was the second i tried after the `route delete' attempt, and it
didn't work either.
I meanwhile reconfigured the interface to 192.168.0.1, so look:
uriah # netstat -rn
Routing tables
Internet:
Destination Gateway Flags Refs Use Netif Expire
127.0.0.1 127.0.0.1 UH 4 1601 lo0
192.168.0.0 0:a0:24:55:7a:c3 UHLWb 0 4 lo0 =>
192.168 link#1 UC 0 0
192.168.0.1 0:a0:24:55:7a:c3 UHLW 0 101 lo0
uriah # ifconfig vx0 delete
uriah # netstat -rn
Routing tables
Internet:
Destination Gateway Flags Refs Use Netif Expire
127.0.0.1 127.0.0.1 UH 4 1601 lo0
192.168.0.0 0:a0:24:55:7a:c3 UHLWb 0 4 lo0 =>
192.168 link#1 UC 0 0
192.168.0.1 0:a0:24:55:7a:c3 UHLW 0 101 lo0
uriah # route delete 192.168.0.1
delete host 192.168.0.1
uriah # route delete 192.168.0.0
writing to routing socket: No such process
delete net 192.168.0.0: not in table
uriah # netstat -rn
Routing tables
Internet:
Destination Gateway Flags Refs Use Netif Expire
127.0.0.1 127.0.0.1 UH 4 1605 lo0
192.168.0.0 0:a0:24:55:7a:c3 UHLWb 0 4 lo0 =>
192.168 link#1 UC 0 0
Interesting enough:
uriah # arp -d 192.168.0.0
192.168.0.0 (192.168.0.0) deleted
...worked! The one thing i can't get rid of, even after taking all
interfaces down etc. is:
uriah # netstat -rn
Routing tables
Internet:
Destination Gateway Flags Refs Use Netif Expire
192.168 link#1 UC 0 0
Probably related is:
uriah # ifconfig vx0
vx0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
ether 00:a0:24:55:7a:c3
uriah # ifconfig vx0 192.168.0.1
ifconfig: ioctl (SIOCAIFADDR): File exists
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
uriah # ifconfig vx0
vx0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255
ether 00:a0:24:55:7a:c3
So what gives? This is probably similar to an annoying but benign
message i've reported here recently. Whenever i activate my SLIP
interfaces after dialing out, i get the same ``File exists''. This is
with the same scripts that used to work for several years now. It
started to happen after i upgraded my system to a post-Lite2 version.
Something must have really been changed there.
--
cheers, J"org
joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19970519183606.JC27358>