=== modified file 'grub-core/net/ip.c'
--- grub-core/net/ip.c	2012-02-09 22:43:43 +0000
+++ grub-core/net/ip.c	2012-04-29 04:13:32 +0000
@@ -240,7 +240,7 @@
 	FOR_NET_NETWORK_LEVEL_INTERFACES (inf)
 	  if (inf->card == card
 	      && inf->address.type == GRUB_NET_NETWORK_LEVEL_PROTOCOL_DHCP_RECV
-	      && grub_net_hwaddr_cmp (&inf->hwaddress, hwaddress) == 0)
+	      && inf->hwaddress.type == GRUB_NET_LINK_LEVEL_PROTOCOL_ETHERNET)
 	    {
 	      if (udph->chksum)
 		{
@@ -266,7 +266,11 @@
 	      err = grub_netbuff_pull (nb, sizeof (*udph));
 	      if (err)
 		return err;
-	      grub_net_process_dhcp (nb, inf->card);
+	      struct grub_net_bootp_packet *dhcp =
+		(struct grub_net_bootp_packet *) nb->data;
+	      if (grub_memcmp(inf->hwaddress.mac, &dhcp->mac_addr,
+			      sizeof(inf->hwaddress.mac)) == 0)
+		grub_net_process_dhcp (nb, inf->card);
 	      grub_netbuff_free (nb);
 	      return GRUB_ERR_NONE;
 	    }