Router ID on IPv6-Only

Saku Ytti saku at
Thu Sep 8 07:07:02 UTC 2022

On Thu, 8 Sept 2022 at 10:01, Bjørn Mork <bjorn at> wrote:

> Why would you do it differently than for dual-stack routers, except that
> you skip the step where you configure the ID as a loopback address?

Because you may not have an option, if you're IPv6 only, vendors (e.g.
junos) may expect you to punch it manually. Of course most of us punch
it manually as loopback0 IPv4 to have more control over outcome.
Question is legitimate and represents change where previously used
mechanisms do not apply, therefore OP is right to ask 'well what
should I do now'.


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