Block unspecified and multicast addresses on the outside

diff --git a/cookbooks/networking/templates/default/nftables.conf.erb b/cookbooks/networking/templates/default/nftables.conf.erb
index 13e070569bb0681ccabb8d133511259b79cdb30f..f32339e9bf9d598d97e06e2f5e436e90dfa91bb8 100644 (file)
--- a/cookbooks/networking/templates/default/nftables.conf.erb
+++ b/cookbooks/networking/templates/default/nftables.conf.erb
@@ -2,8 +2,8 @@
 
 define external-interfaces = { <%= @interfaces.sort.uniq.join(", ") %> }
 
-define ip-private-addresses = { 10.0.0.0/8, 127.0.0.0/8, 169.254.0.0/16, 172.16.0.0/12, 192.0.2.0/24, 192.168.0.0/16 }
-define ip6-private-addresses = { 2001:db8::/32, fc00::/7 }
+define ip-private-addresses = { 0.0.0.0, 10.0.0.0/8, 127.0.0.0/8, 169.254.0.0/16, 172.16.0.0/12, 192.0.2.0/24, 192.168.0.0/16, 224.0.0.0/4 }
+define ip6-private-addresses = { 2001:db8::/32, fc00::/7, ff00::/8 }
 
 table inet filter {
   set ip-osm-addresses {