diff --git a/include/configs/colibri_t30.h b/include/configs/colibri_t30.h
index f10fa16..25885d4 100644
--- a/include/configs/colibri_t30.h
+++ b/include/configs/colibri_t30.h
@@ -51,6 +51,9 @@
 
 /* General networking support */
 #define CONFIG_CMD_DHCP
+#define CONFIG_IP_DEFRAG
+#define CONFIG_TFTP_BLOCKSIZE		16384
+#define CONFIG_TFTP_TSIZE
 
 /* Miscellaneous commands */
 #define CONFIG_FAT_WRITE