diff --git a/package/gluon-core/files/lib/gluon/upgrade/core/initial/011-gluon-network b/package/gluon-core/files/lib/gluon/upgrade/core/initial/011-gluon-network
index a82183a80ab558aba19e26c06518ef14144e6097..8220b00e85f3b67f1f416789fd4a4b80d8711074 100755
--- a/package/gluon-core/files/lib/gluon/upgrade/core/initial/011-gluon-network
+++ b/package/gluon-core/files/lib/gluon/upgrade/core/initial/011-gluon-network
@@ -26,3 +26,6 @@ tl-wdr4300) # fix up duplicate mac addresses
 esac
 
 uci_commit network
+
+echo 'net.ipv6.conf.all.accept_ra=0' >> /etc/sysctl.conf
+echo 'net.ipv6.conf.default.accept_ra=0' >> /etc/sysctl.conf