Strange error message in log. what does it mean and how do i stop it

odhcp6c[3402]: Failed to send SOLICIT message to ff02::1:2 (Network unreachable)

i'm assuming it's something to do with dhcp ipv6. the ipv6 doesn't match any connected to it.

there's no noticable impact on performance but this log message seems fo take a lot o space in my log. how do i fix whatever is causing this warning? i don't want to change the log level, i want to fix whatever the problem is.

Thank you