Use generic netfilter sysctl for conntrack size.

Signed-off-by: Maximilian Wilhelm <max@rfc2324.org>

sysctl/router.conf

@@ -42,7 +42,7 @@ net.ipv4.netfilter.ip_conntrack_tcp_be_liberal = 1
 
 #
 # Increase conntrack table size (default 32k)
-net.ipv4.netfilter.ip_conntrack_max = 16777216
+net.netfilter.nf_conntrack_max = 16777216
 
 
 #