diff -urN linux-2.6.10-vanilla/net/ipv4/udp.c linux-2.6.10/net/ipv4/udp.c
--- linux-2.6.10-vanilla/net/ipv4/udp.c	2004-12-26 17:17:09.000000000 +0100
+++ linux-2.6.10/net/ipv4/udp.c	2004-12-29 02:57:26.000000000 +0100
@@ -1165,7 +1165,7 @@
 		goto csum_error;
 
 	UDP_INC_STATS_BH(UDP_MIB_NOPORTS);
-	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
+//	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_PORT_UNREACH, 0);
 
 	/*
 	 * Hmm.  We got an UDP packet to a port to which we
diff -urN linux-2.6.10-vanilla/net/ipv6/udp.c linux-2.6.10/net/ipv6/udp.c
--- linux-2.6.10-vanilla/net/ipv6/udp.c	2004-12-26 17:17:10.000000000 +0100
+++ linux-2.6.10/net/ipv6/udp.c	2004-12-29 02:57:48.000000000 +0100
@@ -523,7 +523,7 @@
 			goto discard;
 		UDP6_INC_STATS_BH(UDP_MIB_NOPORTS);
 
-		icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0, dev);
+//		icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0, dev);
 
 		kfree_skb(skb);
 		return(0);