-diff -urN linux-2.6.19.old/net/ipv4/netfilter/Kconfig linux-2.6.19.dev/net/ipv4/netfilter/Kconfig
---- linux-2.6.19.old/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:39.000000000 +0100
-+++ linux-2.6.19.dev/net/ipv4/netfilter/Kconfig 2006-12-14 03:13:39.000000000 +0100
-@@ -248,6 +248,12 @@
-
- To compile it as a module, choose M here. If unsure, say N.
+diff -urN linux-2.6.21.1.old/net/ipv4/netfilter/Kconfig linux-2.6.21.1.dev/net/ipv4/netfilter/Kconfig
+--- linux-2.6.21.1.old/net/ipv4/netfilter/Kconfig 2007-05-26 20:17:47.626407992 +0200
++++ linux-2.6.21.1.dev/net/ipv4/netfilter/Kconfig 2007-05-26 20:21:54.587864144 +0200
+@@ -263,6 +263,12 @@
+ help
+ Say Y to get lots of debugging output.