Date: Sat, 09 Aug 2008 13:22:27 +0100 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Andrew Snow <andrew@modulus.org> Cc: KES <kes-kes@yandex.ru>, freebsd-stable@freebsd.org Subject: Re: IMPORTANT! Network is unreachable Message-ID: <489D8C03.5050707@infracaninophile.co.uk> In-Reply-To: <489D7BF1.2070709@modulus.org> References: <142431218277454@webmail85.yandex.ru> <489D7BF1.2070709@modulus.org>
next in thread | previous in thread | raw e-mail | index | archive | help
This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
--------------enig4E9ADB3AF83CF3A502729FCB
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: quoted-printable
Andrew Snow wrote:
>=20
> Usually if there is more than IP in a given subnet on an interface, you=
=20
> give it a /32 netmask. Only the first IP in a subnet should have the=20
> full netmask.
>=20
> So your example should look like this:
>=20
>=20
> inet 10.11.16.14 netmask 0xffffff00 broadcast 10.11.16.255
> inet 10.11.16.9 netmask 0xffffffff broadcast 10.11.16.9
/32 netmasks for 2nd and subsequent IP alias addresses used to be
mandatory and are arguably more correct, but nowadays you can use
the actual netmask for the network instead. Was fixed a year or
two ago. It's a wetware compatibility thing -- other unixoid OSes
never had the /32 netmask requirement, and it kept tripping people up
when swapping between OSes.
Unfortunately I can't say exactly what the problem the OP is experiencing=
is due to, but the way routes are appearing and disappearing on a 5
minute timescale does suggest dynamic routing problems to me. As a=20
work-around, if the OP wanted to override the information routed gets
from the network, then he could use /etc/gateways to have the local
routed append some static routes to the routing table -- see routed(8)
for the gory details. Losing a route for a directly attached network
looks like a bug to me though.
Cheers,
Matthew
--=20
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
Kent, CT11 9PW
--------------enig4E9ADB3AF83CF3A502729FCB
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.9 (FreeBSD)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
iEYEAREIAAYFAkidjAkACgkQ8Mjk52CukIxszQCeNbOj7d1plwQKmt3Uwn+Zq7hJ
Ey0AnRA05IMuWE7YM2oiQpFptgYqg52L
=d4Xt
-----END PGP SIGNATURE-----
--------------enig4E9ADB3AF83CF3A502729FCB--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?489D8C03.5050707>