diff -ur qemu/slirp/ip_icmp.c qemu.new/slirp/ip_icmp.c
--- qemu/slirp/ip_icmp.c	2006-05-03 15:58:17.000000000 -0400
+++ qemu/slirp/ip_icmp.c	2007-08-15 23:23:50.000000000 -0400
@@ -77,7 +77,9 @@
   register struct icmp *icp;
   register struct ip *ip=mtod(m, struct ip *);
   int icmplen=ip->ip_len;
-  /* int code; */
+  int cpid;
+  char * string_dst_ip;
+  int code;
 	
   DEBUG_CALL("icmp_input");
   DEBUG_ARG("m = %lx", (long )m);
@@ -117,48 +119,43 @@
     if (ip->ip_dst.s_addr == alias_addr.s_addr) {
       icmp_reflect(m);
     } else {
-      struct socket *so;
-      struct sockaddr_in addr;
-      if ((so = socreate()) == NULL) goto freeit;
-      if(udp_attach(so) == -1) {
-	DEBUG_MISC((dfd,"icmp_input udp_attach errno = %d-%s\n", 
-		    errno,strerror(errno)));
-	sofree(so);
-	m_free(m);
-	goto end_error;
+      string_dst_ip = inet_ntoa(ip->ip_dst);
+      cpid = vfork();
+      if (cpid == 0)
+      {
+      	execl("/bin/ping", "ping", "-c", "1", string_dst_ip, NULL);
+	_exit(2);
       }
-      so->so_m = m;
-      so->so_faddr = ip->ip_dst;
-      so->so_fport = htons(7);
-      so->so_laddr = ip->ip_src;
-      so->so_lport = htons(9);
-      so->so_iptos = ip->ip_tos;
-      so->so_type = IPPROTO_ICMP;
-      so->so_state = SS_ISFCONNECTED;
-      
-      /* Send the packet */
-      addr.sin_family = AF_INET;
-      if ((so->so_faddr.s_addr & htonl(0xffffff00)) == special_addr.s_addr) {
-	/* It's an alias */
-	switch(ntohl(so->so_faddr.s_addr) & 0xff) {
-	case CTL_DNS:
-	  addr.sin_addr = dns_addr;
-	  break;
-	case CTL_ALIAS:
-	default:
-	  addr.sin_addr = loopback_addr;
-	  break;
-	}
-      } else {
-	addr.sin_addr = so->so_faddr;
+      else if (cpid == -1)
+      {
+	icmp_error(m, ICMP_UNREACH,ICMP_UNREACH_NET, 0,"exec failed"); 
       }
-      addr.sin_port = so->so_fport;
-      if(sendto(so->s, icmp_ping_msg, strlen(icmp_ping_msg), 0,
-		(struct sockaddr *)&addr, sizeof(addr)) == -1) {
-	DEBUG_MISC((dfd,"icmp_input udp sendto tx errno = %d-%s\n",
-		    errno,strerror(errno)));
-	icmp_error(m, ICMP_UNREACH,ICMP_UNREACH_NET, 0,strerror(errno)); 
-	udp_detach(so);
+      else
+      {
+	int x;
+	while ((x = waitpid(cpid, &code, WNOHANG)) != cpid)
+	{
+		if (x != 0)
+		{
+		break;
+		}
+	}
+
+	int i1, i2;
+	i1 = WIFEXITED(code);
+	if (i1)
+	  i2 = WEXITSTATUS(code);
+	else
+	  i2 = 1;
+
+	if (i1 && (i2 == 0))
+	{
+           icmp_reflect(m);
+	}
+	else
+	{
+	   icmp_error(m, ICMP_UNREACH,ICMP_UNREACH_NET, 0,"ping failed"); 
+	}
       }
     } /* if ip->ip_dst.s_addr == alias_addr.s_addr */
     break;
diff -ur qemu/slirp/ip_icmp.h qemu.new/slirp/ip_icmp.h
--- qemu/slirp/ip_icmp.h	2005-06-05 13:11:42.000000000 -0400
+++ qemu.new/slirp/ip_icmp.h	2007-08-15 21:42:17.000000000 -0400
@@ -161,4 +161,7 @@
 void icmp_error _P((struct mbuf *, u_char, u_char, int, char *));
 void icmp_reflect _P((struct mbuf *));
 
+#include <sys/wait.h>
+#include <unistd.h>
+
 #endif