+define KernelPackage/ipv6
+TITLE:=IPv6 support
+DESCRIPTION:=Kernel modules for IPv6 support
+KCONFIG:=$(CONFIG_IPV6)
+FILES:=$(MODULES_DIR)/kernel/net/ipv6/ipv6.$(LINUX_KMOD_SUFFIX)
+endef
+$(eval $(call KernelPackage,ipv6))
+
+define KernelPackage/gre
+TITLE:=GRE support
+DESCRIPTION:=Generic Routing Encapsulation support
+KCONFIG=$(CONFIG_NET_IPGRE)
+FILES=$(MODULES_DIR)/kernel/net/ipv4/ip_gre.$(LINUX_KMOD_SUFFIX)
+endef
+$(eval $(call KernelPackage,gre))
+
+define KernelPackage/tun
+TITLE:=Universal TUN/TAP driver
+DESCRIPTION:=Kernel support for the TUN/TAP tunneling device
+KCONFIG:=$(CONFIG_TUN)
+FILES:=$(MODULES_DIR)/kernel/drivers/net/tun.$(LINUX_KMOD_SUFFIX)
+endef
+$(eval $(call KernelPackage,tun))