--- zzzz-none-000/linux-2.6.39.4/include/linux/sysctl.h	2011-08-03 19:43:28.000000000 +0000
+++ puma6-atom-6490-729/linux-2.6.39.4/include/linux/sysctl.h	2021-11-10 13:38:17.000000000 +0000
@@ -22,6 +22,7 @@
 #ifndef _LINUX_SYSCTL_H
 #define _LINUX_SYSCTL_H
 
+
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/compiler.h>
@@ -568,6 +569,7 @@
 	NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN=22,
 	NET_IPV6_PROXY_NDP=23,
 	NET_IPV6_ACCEPT_SOURCE_ROUTE=25,
+	NET_IPV6_RA_DEFRTR_TABLE=26,
 	__NET_IPV6_MAX
 };