diff --git a/site.conf b/site.conf
index 86094ea..f0f733e 100644
--- a/site.conf
+++ b/site.conf
@@ -25,7 +25,7 @@
 	site_code = 'ffhb',
 	domain_seed = '9c689a5be0e7610716aa9952d3c186345bd8d72dfa8950977e255e26ea24d978',
 
-	prefix6 = '2a06:8782:ffbb:baf0::/64',
+	prefix6 = 'fd00:42:100::/64',
 
 	timezone = 'CET-1CEST,M3.5.0,M10.5.0/3', -- Europe/Berlin
 	ntp_servers = {
@@ -64,7 +64,7 @@
 			'node.ffhb.de',
 			'node.bremen.freifunk.net',
 		},
-		ip6 = '2a06:8782:ffbb:baf0::127',
+		ip6 = 'fd00:42:100::127',
 		mac = '16:41:95:40:f7:dc',
 	},