Date: Tue, 12 Aug 2008 21:51:34 +0530 From: =?unknown-8bit?B?4KSG4KS24KWA4KS3IOCktuClgeCkleCljeCk?= =?unknown-8bit?Q?=B2?= Ashish Shukla <wahjava.ml@gmail.com> To: freebsd-stable@freebsd.org Subject: Re: neighbor discovery problem Message-ID: <20080812162134.GA2652@chateau.d.lf> In-Reply-To: <E1KSswq-000AcK-Bz@dilbert.ticketswitch.com> References: <6338C16505B9465ED4A9CA76@andromede.in.absolight.net> <E1KSswq-000AcK-Bz@dilbert.ticketswitch.com>
next in thread | previous in thread | raw e-mail | index | archive | help
--3MwIy2ne0vdjdPXF Content-Type: text/plain; charset=unknown-8bit; format=flowed Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In <E1KSswq-000AcK-Bz@dilbert.ticketswitch.com>, Pete French wrote: >> The network is pretty simple, >> >> gateway : >> em0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 >> options=3Db<RXCSUM,TXCSUM,VLAN_MTU> >> inet6 fe80::207:e9ff:fe0e:dead%em0 prefixlen 64 scopeid 0x1=20 >> inet6 2a01:678:1:443:: prefixlen 64=20 >> inet6 2a01:678:100:: prefixlen 48=20 > >Hmmm, are machine numbers of all zeroes legal in IPv6 ? I would >configure those as '2a01:678:1:443::1' and '2a01:678:100::1' if >I were you. All zeroes as a machine number is certainly a no-no in >IPv4, and I wouldn't use it in IPv6 either. I have no idea if it's >actually a problem, but it gives me a bad feeling.... Yes, it is legal, and such address, with subnet prefix + all zeroes in the= =20 host identifier (or interface identifier) is known as subnet-router anycast= =20 address. For further information, check out RFC 4291, Section 2.6.1[1]. References: [1] - http://tools.ietf.org/html/rfc4291#section-2.6.1 Ashish Shukla --=20 =B7-- =B7- =B7=B7=B7=B7 =B7--- =B7- =B7=B7=B7- =B7- =B7--=B7-=B7 --=B7 -- = =B7- =B7=B7 =B7-=B7=B7 =B7-=B7-=B7- -=B7-=B7 --- -- --3MwIy2ne0vdjdPXF Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) iEYEARECAAYFAkihuI4ACgkQHy+EEHYuXnRSzwCeMKaqabepIVh8ndktFkKD5/gC C4oAoOxqiZ2YbqZndt7qA92sNdR+BfbC =uJ35 -----END PGP SIGNATURE----- --3MwIy2ne0vdjdPXF--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20080812162134.GA2652>