--- /dev/null
+--- 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 */
+ ;