--- zzzz-none-000/linux-2.6.39.4/net/netfilter/Kconfig	2011-08-03 19:43:28.000000000 +0000
+++ puma6-arm-6490-729/linux-2.6.39.4/net/netfilter/Kconfig	2021-11-10 13:23:11.000000000 +0000
@@ -290,6 +290,16 @@
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
+config NF_CONNTRACK_RTSP
+	tristate "RTSP protocol support"
+	depends on NF_CONNTRACK
+	help
+	  Support the RTSP protocol.  This allows UDP transports to be setup
+	  properly, including RTP and RDT.
+
+	  If you want to compile it as a module, say 'M' here and read
+	  Documentation/modules.txt.  If unsure, say 'Y'.
+
 config NF_CT_NETLINK
 	tristate 'Connection tracking netlink interface'
 	select NETFILTER_NETLINK