+extern void ip6_address_encode (const ip6_address_t * in,
+ vl_api_ip6_address_t out);
+extern void ip6_address_decode (const vl_api_ip6_address_t in,
+ ip6_address_t * out);
+extern void ip4_address_encode (const ip4_address_t * in,
+ vl_api_ip4_address_t out);
+extern void ip4_address_decode (const vl_api_ip4_address_t in,
+ ip4_address_t * out);