gateways: drop IPv4 Routes learned via GRE

freifunk-berlin · Dec 2, 2024 · 478274b · 478274b
1 parent cda548f
commit 478274b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/roles/cfg_openwrt/templates/gateway/bird.conf.j2 b/roles/cfg_openwrt/templates/gateway/bird.conf.j2
@@ -97,7 +97,7 @@ protocol babel babel_mesh {
 	};
 	ipv4 {
 		table v4_main;
-		import all;
+		import where ifname !~ "gre4-*"; # Drop IPv4 routes learned via GRE, which remains a rather dirty hack for IPv6
 		export where source = RTS_BABEL || net = 0.0.0.0/0; # Readvertise Babel routes and advertise default route
 	};