Index: sys/boot/common/dev_net.c
===================================================================
--- sys/boot/common/dev_net.c
+++ sys/boot/common/dev_net.c
@@ -264,8 +264,29 @@
 	 * be initialized.  If any remain uninitialized, we will
 	 * use RARP and RPC/bootparam (the Sun way) to get them.
 	 */
-	if (try_bootp)
+	if (try_bootp) {
+#ifdef  SKIP_BOOTP_REQUEST
+		if (bootp_response != NULL) {
+			int rc;
+
+			rc = dhcp_try_rfc1048(bootp_response->bp_vend,
+			    bootp_response_size -
+			    offsetof(struct bootp, bp_vend));
+
+			if (rootip.s_addr == 0)
+				rootip = bootp_response->bp_siaddr;
+			if (gateip.s_addr == 0)
+				gateip = bootp_response->bp_giaddr;
+			if (myip.s_addr == 0)
+				myip = bootp_response->bp_yiaddr;
+
+			if (rc < 0)
+				bootp(sock);
+		}
+#else
 		bootp(sock);
+#endif
+	}
 	if (myip.s_addr != 0)
 		goto exit;
 #ifdef	NETIF_DEBUG
Index: sys/boot/i386/loader/Makefile
===================================================================
--- sys/boot/i386/loader/Makefile
+++ sys/boot/i386/loader/Makefile
@@ -12,6 +12,7 @@
 LOADER_NET_SUPPORT?=	yes
 LOADER_NFS_SUPPORT?=	yes
 LOADER_TFTP_SUPPORT?=	yes
+SKIP_BOOTP_REQUEST?=	no
 
 # architecture-specific loader code
 SRCS=		main.c conf.c vers.c
@@ -39,6 +40,10 @@
 CFLAGS+=	-DLOADER_NFS_SUPPORT
 .endif
 
+.if ${SKIP_BOOTP_REQUEST} == "yes"
+CFLAGS+=	-DSKIP_BOOTP_REQUEST
+.endif
+
 # Include bcache code.
 HAVE_BCACHE=	yes