diff --git a/include/kvm/uip.h b/include/kvm/uip.h
index 8333004..c414267 100644
--- a/include/kvm/uip.h
+++ b/include/kvm/uip.h
@@ -29,6 +29,12 @@
 #define UIP_TCP_FLAG_ACK	16
 #define UIP_TCP_FLAG_URG	32
 
+#define UIP_DHCP_VENDOR_SPECIFIC_LEN	312
+#define UIP_DHCP_MACPAD_LEN		10
+#define UIP_DHCP_HOSTNAME_LEN		64
+#define UIP_DHCP_FILENAME_LEN		128
+#define UIP_DHCP_MAGIC_COOKIE_LEN	4
+#define UIP_DHCP_OPTION_LEN		(UIP_DHCP_VENDOR_SPECIFIC_LEN - UIP_DHCP_MAGIC_COOKIE_LEN)
 /*
  * IP package maxium len == 64 KBytes
  * IP header == 20 Bytes
@@ -126,6 +132,27 @@ struct uip_pseudo_hdr {
 	u16 len;
 } __attribute__((packed));
 
+struct uip_dhcp {
+	struct uip_udp udp;
+	u8 msg_type;
+	u8 hardware_type;
+	u8 hardware_len;
+	u8 hops;
+	u32 id;
+	u16 time;
+	u16 flg;
+	u32 client_ip;
+	u32 your_ip;
+	u32 server_ip;
+	u32 agent_ip;
+	struct uip_eth_addr client_mac;
+	u8 pad[UIP_DHCP_MACPAD_LEN];
+	u8 server_hostname[UIP_DHCP_HOSTNAME_LEN];
+	u8 boot_filename[UIP_DHCP_FILENAME_LEN];
+	u32 magic_cookie;
+	u8 option[UIP_DHCP_OPTION_LEN];
+} __attribute__((packed));
+
 struct uip_info {
 	struct list_head udp_socket_head;
 	struct list_head tcp_socket_head;