Re: [CentOS] IPv6 routing preference with multiple default gateways

2021-10-17 Thread Kenneth Porter
Ugh. It looks like I need to read through the neighbor discovery RFC to understand how this works: https://datatracker.ietf.org/doc/html/rfc4861 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 backu

[CentOS] IPv6 routing preference with multiple default gateways

2021-10-17 Thread Kenneth Porter
I've got a primary and backup CentOS 7 gateway, each with two interfaces, connected to my LAN and my fiber gateway. The default gateway (the fiber box) is set explicitly in ifcfg-eno2 with IPV6_DEFAULTGW. Using "ip -6 route show" I see two defaults, the static one and the one advertised from my