Index: modules/proxy/proxy_util.c
===================================================================
--- modules/proxy/proxy_util.c	(revision 662381)
+++ modules/proxy/proxy_util.c	(working copy)
@@ -2275,7 +2275,7 @@
     apr_status_t rv;
     int connected = 0;
     int loglevel;
-    apr_sockaddr_t *backend_addr = conn->addr;
+    apr_sockaddr_t *backend_addr = conn->addr, *local_addr;
     apr_socket_t *newsock;
     void *sconf = s->module_config;
     proxy_server_conf *conf =
@@ -2349,6 +2349,36 @@
                      "proxy: %s: fam %d socket created to connect to %s",
                      proxy_function, backend_addr->family, worker->hostname);
 
+        if (conf->bindopt_set) {
+            const int idx = conf->bind_idx;
+            const int range = conf->bind_range;
+            const int start = conf->bind_port;
+            for(int i = 0; i < range; ++i) { /* loop until we can bind correctly*/
+                int port = start + ((idx + i) % range);
+                ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "proxy: %s: trying to bind to %s:%u",
+                        proxy_function, conf->bind_addr,port, NULL);
+
+                local_addr = conf->bind_addr;
+                local_addr->sa.sin.sin_port = htons(port);
+                local_addr->port = port;
+
+                if ((rv = apr_socket_bind(newsock, local_addr)) == APR_SUCCESS) {
+                    ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "proxy: %s: bound to %s:%u",
+                            proxy_function, conf->bind_addr, local_addr->port, NULL);
+                    conf->bind_idx = i + 1;
+                    break;
+                } else {
+                    ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, "proxy: %s: not bound to %s%u",
+                            proxy_function, conf->bind_addr, local_addr->port, NULL);
+                }
+            }
+            if (rv != APR_SUCCESS) {
+                ap_log_error(APLOG_MARK, APLOG_ERR, 0, s, "proxy: %s: can not bind to %s:%u+%u",
+                        proxy_function,conf->bind_addr, conf->bind_port, conf->bind_range, NULL);
+                return DECLINED;
+            }
+        }
+
         /* make the connection out of the socket */
         rv = apr_socket_connect(newsock, backend_addr);
 
Index: modules/proxy/mod_proxy.c
===================================================================
--- modules/proxy/mod_proxy.c	(revision 662381)
+++ modules/proxy/mod_proxy.c	(working copy)
@@ -1066,6 +1066,8 @@
     ps->timeout_set = 0;
     ps->badopt = bad_error;
     ps->badopt_set = 0;
+    ps->bindopt_set = 0;
+    ps->bind_idx = 0;
     ps->pool = p;
 
     return ps;
@@ -1109,6 +1111,7 @@
     ps->badopt_set = overrides->badopt_set || base->badopt_set;
     ps->proxy_status = (overrides->proxy_status_set == 0) ? base->proxy_status : overrides->proxy_status;
     ps->proxy_status_set = overrides->proxy_status_set || base->proxy_status_set;
+    ps->bindopt_set = overrides->bindopt_set || base->bindopt_set;
     ps->pool = p;
     return ps;
 }
@@ -1706,6 +1709,54 @@
     return NULL;
 }
 
+static const char*
+    set_proxy_bindaddr(cmd_parms *parms, void *dummy, const char *addr)
+{
+    char *range, *host, *scope_id;
+    apr_port_t port;
+    int r = 0;
+
+    proxy_server_conf *psf =
+    ap_get_module_config(parms->server->module_config, &proxy_module);
+
+    range = ap_strrchr((char*)addr, '+');
+    if (range) {
+        *range++ = 0;
+        r = atoi(range);
+    }
+
+    /* We dont accept a single port with out a range as it would be same
+     * as a single threaded single process http-client
+     *
+     * We do not allow ip:0+0 or ip:0 as it can be specified more clearly
+     * as just ip.
+     *
+     * we dont accept a range with out a port either.
+     */
+    if((apr_parse_addr_port(&host, &scope_id, &port, addr, parms->pool)
+                != APR_SUCCESS)
+            || scope_id               /* we dont know how to use scope_id */
+            || (!port && range)       /* only a combo [port+range] is valid */
+            || (port && !range)
+            || ((port + r) < 0)       /* or an invalid portnumber (p+r) */
+            || ((port + r) > 65534)
+      )
+        return "ProxyBindAddress:  Invalid address -"
+               " format is <addr>[:<port>+<range>]";
+
+    /* Preparse the address */
+    apr_sockaddr_info_get(&(psf->bind_addr), host, APR_UNSPEC, 0, 0, parms->pool);
+
+    psf->bind_port = port;
+    /* If there didn't exist a port then there was no range either. so we have the
+     * starting value 0 for r when no port was specified.*/
+    psf->bind_range = r + 1;
+    psf->bind_idx = 0;
+    psf->bindopt_set = 1;
+
+    return NULL;
+}
+
 static const char *add_member(cmd_parms *cmd, void *dummy, const char *arg)
 {
     server_rec *s = cmd->server;
@@ -2088,6 +2139,8 @@
      "A balancer or worker name with list of params"),
     AP_INIT_TAKE1("ProxyFtpDirCharset", set_ftp_directory_charset, NULL,
      RSRC_CONF|ACCESS_CONF, "Define the character set for proxied FTP listings"),
+    AP_INIT_TAKE1("ProxyBindAddress", set_proxy_bindaddr, NULL, RSRC_CONF,
+     "Set the source address for a proxied connection. "),
     {NULL}
 };
 
Index: modules/proxy/mod_proxy.h
===================================================================
--- modules/proxy/mod_proxy.h	(revision 662381)
+++ modules/proxy/mod_proxy.h	(working copy)
@@ -190,6 +190,12 @@
         status_full
     } proxy_status;             /* Status display options */
     char proxy_status_set;
+    /*bind to local ports*/
+    apr_sockaddr_t *bind_addr;
+    apr_port_t bind_port;
+    apr_port_t bind_range;             /* restrict the source ports used by mod_proxy */
+    int bind_idx;
+    char bindopt_set;
     apr_pool_t *pool;           /* Pool used for allocating this struct */
 } proxy_server_conf;