Using /126 for IPv6 router links

TJ trejrco at gmail.com
Wed Jan 27 12:22:43 CST 2010


> -----Original Message-----
> From: Grzegorz Janoszka [mailto:Grzegorz at Janoszka.pl]
> Sent: Wednesday, January 27, 2010 12:10
> To: nanog at nanog.org
> Subject: Re: Using /126 for IPv6 router links
> 
> On 27-1-2010 2:16, Steve Bertrand wrote:
> >   ip address x.x.x.x 255.255.255.252
> >   ipv6 address 2607:F118:x:x::/64 eui-64
> >   ipv6 nd suppress-ra
> >   ipv6 ospf 1 area 0.0.0.0
> > I've found that this setup, in conjunction with iBGP peering between
> > loopback /128's works well.
> 
> When OSPFv3 goes down and you are trying to debug, what IPv6 will you
> ping to check if the second side is accessible?

FWIW, I like to use static, meaningfully-assigned Link Locals ... regardless
of the link type.


/TJ







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