[CentOS] IPv6 routing preference with multiple default gateways

Sun Oct 17 21:10:41 UTC 2021
Kenneth Porter <shiva at sewingwitch.com>

Ugh. It looks like I need to read through the neighbor discovery RFC to 
understand how this works:


I did discover that the radvd.conf page includes an entry for 
AdvDefaultPreference low|medium|high so I can at least set the preference 
of the backup C7 box to low.