Date: Tue, 26 Aug 2014 17:40:27 -0700 From: Peter Wemm <peter@wemm.org> To: freebsd-net@freebsd.org Cc: freebsd@jonathanprice.org Subject: Re: Should I be using ipv6_activate_all_interfaces or ip6addrctl_policy="ipv6_prefer" Message-ID: <2173103.SJdXL7NPLT@overcee.wemm.org> In-Reply-To: <88a42e1006e3fac7508a9419e342f1b2@mail.jonathanprice.org> References: <88a42e1006e3fac7508a9419e342f1b2@mail.jonathanprice.org>
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--nextPart17931494.YGa4yGzs8L Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="us-ascii" On Tuesday 26 August 2014 10:40:27 freebsd@jonathanprice.org wrote: > Hello, >=20 > I am configuring a server with IPv4 and IPv6 addresses and have notic= ed that > FreeBSD seems to be preferring IPv4, such as when establishing SSH > connections. >=20 > After reading through /etc/defaults/rc.conf, and later /etc/rc.d/ip6a= ddrctl > I have come to the conclusion that I have two ways to tell FreeBSD to= > prefer IPv6: >=20 > 1) Add ipv6_activate_all_interfaces to /etc/rc.conf > 2) Add ip6addrctl_policy=3D"ipv6_prefer" to /etc/rc.conf >=20 > Could anybody with a little more knowledge on the matter explain to m= e which > of the two options is more preferential? They both do different things. The activate knob is to enable ipv6 on an interface. To oversimplify i= t, if=20 you configure an address on an interface, it is "enabled". However, th= is=20 switch enables this on all the rest of the interfaces, even the ones yo= u=20 didn't configure. ip6addrctl* affects things like hostname lookups to sort the addresses = returned=20 to the caller. They are different things entirely. I think you are expecting the beha= vior=20 that ip6_prefer policy gives you. That's what we use in the freebsd.or= g=20 cluster to have it use ipv6 where possible. =2D-=20 Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com; KI= 6FJV UTF-8: for when a ' or ... just won\342\200\231t do\342\200\246 --nextPart17931494.YGa4yGzs8L Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAABAgAGBQJT/Sj/AAoJEDXWlwnsgJ4ErZ0IAKqJz4CEMdURIooA25k1YV5e vDCVO/6zSnMG6i7NbbcEXDvxONnkIkd0v57yLAidx5KZjd5SezbGsJAoCas8GxOc jOKkdkwAAGeX4TkoroQRFIhaCY6f0AeR9ZIc/6Ei7a9yMHyqsNe8C60goTZy4yXX gLxB5Oob8JtGVYMasQpckBLwzXfWibhW8MFdDIEKxo3UsLhnS6wAQZWnOAfYQ6f0 dp9SudFLQr3SZR5sl7Vi1Ebc5f7aVG/aufNxPfVhOSOKa8PNgloKdFsb6adveuSL K/iALInwn0qFbKBadBARWmlZwaNExYXNLseA4dWW5ZbSRyYKRcjw2jZmpNiPhwQ= =+AgE -----END PGP SIGNATURE----- --nextPart17931494.YGa4yGzs8L--
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