--- a/networking/udhcp/common.c
+++ b/networking/udhcp/common.c
@@ -64,6 +64,7 @@ const struct dhcp_optflag dhcp_optflags[
 #endif
 	{ OPTION_STRING                           , 0xd1 }, /* DHCP_PXE_CONF_FILE */
 	{ OPTION_6RD                              , 0xd4 }, /* DHCP_6RD           */
+	{ OPTION_6RD                              , 0x96 }, /* DHCP_6RD (Comcast) */
 	{ OPTION_STATIC_ROUTES | OPTION_LIST      , 0xf9 }, /* DHCP_MS_STATIC_ROUTES */
 	{ OPTION_STRING                           , 0xfc }, /* DHCP_WPAD          */
 
@@ -131,6 +132,7 @@ const char dhcp_option_strings[] ALIGN1 
 #endif
 	"pxeconffile" "\0" /* DHCP_PXE_CONF_FILE  */
 	"ip6rd" "\0"       /* DHCP_6RD            */
+	"ip6rd" "\0"       /* DHCP_6RD (Comcast)  */
 	"msstaticroutes""\0"/* DHCP_MS_STATIC_ROUTES */
 	"wpad" "\0"        /* DHCP_WPAD           */
 	;