Date: Wed, 27 Aug 2014 19:55:36 +0100 From: Jonathan Price <freebsd@jonathanprice.org> To: Kevin Oberman <rkoberman@gmail.com> Cc: freebsd-net@freebsd.org Subject: Re: Should I be using ipv6_activate_all_interfaces or ip6addrctl_policy="ipv6_prefer" Message-ID: <53FE29A8.1000909@jonathanprice.org> In-Reply-To: <CAN6yY1vU_aQKhhoKXGPSRQJSPSvz-mqeh3GFkkCg50irbpk-3A@mail.gmail.com> References: <88a42e1006e3fac7508a9419e342f1b2@mail.jonathanprice.org> <2173103.SJdXL7NPLT@overcee.wemm.org> <53FD7B34.1050408@jonathanprice.org> <CAN6yY1uxft_3cTkWV8NTnOai-928DnS3uW-XyD3BwcCvjBKeQw@mail.gmail.com> <2c1d74944371a4be730ff1b666489467@mail.jonathanprice.org> <CAN6yY1vU_aQKhhoKXGPSRQJSPSvz-mqeh3GFkkCg50irbpk-3A@mail.gmail.com>
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> I was over-simplifying and, as you state, any interface explicitly > configured for IPv6 will have IPv6 disabled. Those with explicit IPv6 > configuration will not be disabled. > > Most end-user systems are NOT configured with an address. In most cases > SLAAC (and, perhaps DHCPv6) along with things like NDP and RTSOL do > allof hte configuration. If ipv6_activate_)all_interfaces is NO, only > explicitly configured interfaces will run IPv6. If it i YES, any > interface with no explicit configuration will auto-configure and run IPv6. > > The system I am typing this on is entirely auto-configured as are almost > all Windows systems running 7 or 8. (Maybe Vista, too. Don't recall.) > -- > R. Kevin Oberman, Network Engineer, Retired > E-mail: rkoberman@gmail.com <mailto:rkoberman@gmail.com> Ah, thanks, that makes sense. Would that mean that a line such as 'ifconfig_IF="DHCP"' would not count the interface as being explicitly configured? I haven't looked into SLAAC or DHCPv6 configuration yet, so I'm not sure if either of those require a line like the one above. I couldn't word that particularly well. Basically, my question is, does any "ifconfig_IF_..." line count IF as being explicitly configured, or is it just interfaces with statically assigned addresses? Thanks, Jonathan.
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