+diff --git a/networking/udhcp/common.h b/networking/udhcp/common.h
+index f8f18ff..56cd8b0 100644
+--- a/networking/udhcp/common.h
++++ b/networking/udhcp/common.h
+@@ -88,6 +88,7 @@ enum {
+ OPTION_S32,
+ OPTION_BIN,
+ OPTION_STATIC_ROUTES,
++ OPTION_6RD,
+ #if ENABLE_FEATURE_UDHCP_RFC3397
+ OPTION_DNS_STRING, /* RFC1035 compressed domain name list */
+ OPTION_SIP_SERVERS,
+diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
+index 78aabed..993326f 100644