diff -u -r squid-2.5.STABLE3.virgin/src/comm.c squid-2.5.STABLE3/src/comm.c
--- squid-2.5.STABLE3.virgin/src/comm.c	Mon Apr  1 01:03:38 2002
+++ squid-2.5.STABLE3/src/comm.c	Wed Jun 18 17:59:37 2003
@@ -64,6 +64,9 @@
 #ifdef TCP_NODELAY
 static void commSetTcpNoDelay(int);
 #endif
+#ifdef SO_BINDANY
+static void commSetBindAny(int);
+#endif
 static void commSetTcpRcvbuf(int, int);
 static PF commConnectFree;
 static PF commConnectHandle;
@@ -218,6 +221,10 @@
 	commSetNoLinger(new_socket);
 	if (opt_reuseaddr)
 	    commSetReuseAddr(new_socket);
+#ifdef SO_BINDANY
+	if (opt_bindany)
+	    commSetBindAny(new_socket);
+#endif
     }
     if (addr.s_addr != no_addr.s_addr) {
 	if (commBind(new_socket, addr, port) != COMM_OK) {
@@ -783,6 +790,16 @@
 	debug(50, 1) ("commSetTcpRcvbuf: FD %d, SIZE %d: %s\n",
 	    fd, size, xstrerror());
 }
+
+#ifdef SO_BINDANY
+static void
+commSetBindAny(int fd)
+{
+    int on = 1;
+    if (setsockopt(fd, SOL_SOCKET, SO_BINDANY, (char *) &on, sizeof(on)) < 0)
+	debug(50, 1) ("commSetBindAny: FD %d: %s\n", fd, xstrerror());
+}
+#endif
 
 int
 commSetNonBlocking(int fd)
diff -u -r squid-2.5.STABLE3.virgin/src/globals.h squid-2.5.STABLE3/src/globals.h
--- squid-2.5.STABLE3.virgin/src/globals.h	Mon Jan 13 18:01:13 2003
+++ squid-2.5.STABLE3/src/globals.h	Wed Jun 18 18:00:25 2003
@@ -77,6 +77,7 @@
 extern int debugLevels[MAX_DEBUG_SECTIONS];
 extern int do_mallinfo;		/* 0 */
 extern int opt_reuseaddr;	/* 1 */
+extern int opt_bindany;		/* 1 */
 extern int icmp_sock;		/* -1 */
 extern int neighbors_do_private_keys;	/* 1 */
 extern int opt_accel_uses_host;	/* 0 */
diff -u -r squid-2.5.STABLE3.virgin/src/main.c squid-2.5.STABLE3/src/main.c
--- squid-2.5.STABLE3.virgin/src/main.c	Mon May  5 20:24:14 2003
+++ squid-2.5.STABLE3/src/main.c	Wed Jun 18 18:01:03 2003
@@ -115,8 +115,11 @@
     extern char *optarg;
     int c;
 
-    while ((c = getopt(argc, argv, "CDFNRSVYXa:d:f:hk:m::su:vz?")) != -1) {
+    while ((c = getopt(argc, argv, "BCDFNRSVYXa:d:f:hk:m::su:vz?")) != -1) {
 	switch (c) {
+	case 'B':
+	    opt_bindany = 0;
+	    break;
 	case 'C':
 	    opt_catch_signals = 0;
 	    break;