hostname: Ensure it's not clobbered by SLAAC

Because it cannot carry a hostname and user could be forcing it.

diff --git a/hooks/30-hostname.in b/hooks/30-hostname.in
index 579c73d3c22f85a49db8431e8b48a25423748774..b515e4c13789d56100262cd7ed9e7f32f287b764 100644 (file)
--- a/hooks/30-hostname.in
+++ b/hooks/30-hostname.in
@@ -153,6 +153,6 @@ BOUND6|RENEW6|REBIND6|REBOOT6|INFORM6)
        ;;
 esac
 
-if $if_up; then
+if $if_up && [ "$reason" != ROUTERADVERT ]; then
        set_hostname
 fi