Re: Several IPv6 routers and default gateway choice

2019-09-11 Thread Victor Sudakov
Hiroki Sato wrote: > va> > va> Can any IPv6 unicast or link-local address be configured as an > anycast > va> > va> address of a router? > va> > > va> > Yes. There is no restriction about address scope. > va> > > va> > You might want to read RFC 4291, which defines Subnet-Router anycast > va> >

Re: Several IPv6 routers and default gateway choice

2019-09-11 Thread Hiroki Sato
Victor Sudakov wrote in <20190906035608.ga45...@admin.sibptus.ru>: va> Hiroki Sato wrote: va> > va> Can any IPv6 unicast or link-local address be configured as an anycast va> > va> address of a router? va> > va> > Yes. There is no restriction about address scope. va> > va> > You might want t

Re: Several IPv6 routers and default gateway choice

2019-09-06 Thread Victor Sudakov
Kevin Oberman wrote: > > RFC2526 is dim, I think it's because of this RFC the last usable address > > on a subnet ends in ff7f instead of . 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 > deprec

Re: Several IPv6 routers and default gateway choice

2019-09-06 Thread Kevin Oberman
On Thu, Sep 5, 2019 at 8:56 PM Victor Sudakov 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 defin

Re: Several IPv6 routers and default gateway choice

2019-09-05 Thread Victor Sudakov
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

Re: Several IPv6 routers and default gateway choice

2019-09-01 Thread Hiroki Sato
Victor Sudakov wrote in <20190901141047.ga56...@admin.sibptus.ru>: va> Hiroki Sato wrote: va> > Another way to realize failover is to use a common anycast address on va> > multiple routers. For example, a router is always able to have va> > fe80::/64 as an anycast address like this: va> > va

Re: Several IPv6 routers and default gateway choice

2019-09-01 Thread Victor Sudakov
Hiroki Sato wrote: > va> > va> If a FreeBSD host receives router advertisements from several IPv6 > va> routers, on a LAN segment, which would be chosen as the default gateway? > > One reachable router will be selected based on the default router > preference value in RA, which is defined in RFC

Re: Several IPv6 routers and default gateway choice

2019-08-29 Thread Hiroki Sato
Victor Sudakov wrote in <20190830021228.ga66...@admin.sibptus.ru>: va> Dear Colleagues, va> va> If a FreeBSD host receives router advertisements from several IPv6 va> routers, on a LAN segment, which would be chosen as the default gateway? One reachable router will be selected based on the de

Several IPv6 routers and default gateway choice

2019-08-29 Thread Victor Sudakov
Dear Colleagues, If a FreeBSD host receives router advertisements from several IPv6 routers, on a LAN segment, which would be chosen as the default gateway? Can this be used for failover? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN 2:5005/49@fidonet http://vas.tomsk.ru/ signature.asc Descriptio