On Thu, Sep 5, 2019 at 8:56 PM Victor Sudakov <v...@mpeks.tomsk.su> wrote:
> Hiroki Sato wrote: > > va> Can any IPv6 unicast or link-local address be configured as an > anycast > > va> address of a router? > > > > Yes. There is no restriction about address scope. > > > > You might want to read RFC 4291, which defines Subnet-Router anycast > > address, and RFC 2526, which defines the other reserved IPv6 subnet > > anycast addresses. In general, the former one can be used for > > routing purpose. > > Interestingly, RFC4291 says that "All routers are required to support > the Subnet-Router anycast addresses for the subnets to which they have > interfaces." In practice, I don't observe this. A FreeBSD router does > not configure such an address automatically, for example. > > RFC2526 is dim, I think it's because of this RFC the last usable address > on a subnet ends in ff7f instead of ffff. I wonder if anyone anywhere > uses those subnet anycast addresses. > I have to look it up on the status page, but I thought 2526 had been deprecated back before I retired. I thought I discovered this while setting up anycast for our DNS servers. I'll look when I get back from walking our dog. (Priorities change when you retire.) _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
