Router ID on IPv6-Only

Randy Bush randy at
Thu Sep 8 15:13:33 UTC 2022

> During some IPv6 numbering discussions at work today, someone had a
> question that I hadn't really considered before. How to choose 32-bit
> router IDs for IPv6-only routers.

arbitrary 32 bit number unique in the autonomous system.  even in an
ipv4 world it does not need to match any configured interface address.


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