nanog mailing list archives
Re: using "reserved" IPv6 space
From: Owen DeLong <owen () delong com>
Date: Mon, 16 Jul 2012 23:36:54 -0700
On Jul 16, 2012, at 9:40 PM, Karl Auer wrote:
On Mon, 2012-07-16 at 23:38 -0400, Matt Addison wrote:Oliver <olipro () 8 c 9 b 0 7 4 0 1 0 0 2 ip6 arpa> wrote:Additionally, as an alternative to RAs, you can simply point default at the all-routers anycast address.Wouldn't this result in duplicate packets leaving your network if there were more than 1 router listening to 'all routers' and you (at the MAC layer) multicasted to those listeners?I think Oliver meant the subnet router anycast address. Anycast gets you to one-of-many. The routers work out which of them is currently getting the subnet router anycast traffic. If that router drops out for any reason, another of the routers available on the link takes over.
Reread the spec... It gets the packet to one or more of the routers and it may well lead to packet duplication. There may or may not be coordination between the routers. It isn't in the spec. Owen
Current thread:
- Re: using "reserved" IPv6 space, (continued)
- Re: using "reserved" IPv6 space Rajendra Chayapathi (rchayapa) (Jul 16)
- Re: using "reserved" IPv6 space Oliver (Jul 16)
- Re: using "reserved" IPv6 space Rajendra Chayapathi (rchayapa) (Jul 16)
- Re: using "reserved" IPv6 space Matt Addison (Jul 16)
- Re: using "reserved" IPv6 space Karl Auer (Jul 16)
- Re: using "reserved" IPv6 space Jimmy Hess (Jul 16)
- Re: using "reserved" IPv6 space Karl Auer (Jul 16)
- Re: using "reserved" IPv6 space Jimmy Hess (Jul 16)
- Re: using "reserved" IPv6 space Owen DeLong (Jul 16)
- Re: using "reserved" IPv6 space Karl Auer (Jul 16)
- Re: using "reserved" IPv6 space Owen DeLong (Jul 16)
- Re: using "reserved" IPv6 space Karl Auer (Jul 17)
- Re: using "reserved" IPv6 space Matt Addison (Jul 17)
- Re: using "reserved" IPv6 space Doug Barton (Jul 17)
- Re: using "reserved" IPv6 space Owen DeLong (Jul 16)
- Re: using "reserved" IPv6 space Oliver (Jul 17)
- Re: using "reserved" IPv6 space Jimmy Hess (Jul 16)
- Re: using "reserved" IPv6 space -Hammer- (Jul 17)
- Re: using "reserved" IPv6 space Saku Ytti (Jul 17)
- Re: using "reserved" IPv6 space -Hammer- (Jul 17)
- Re: using "reserved" IPv6 space Doug Barton (Jul 17)