diff -uprk.orig ppp-20031003.orig/pppd/ipcp.c ppp-20031003/pppd/ipcp.c

--- ppp-20031003.orig/pppd/ipcp.c	2003-12-03 12:46:43 +0300

+++ ppp-20031003/pppd/ipcp.c	2003-12-04 17:06:10 +0300

@@ -202,6 +202,15 @@ static option_t ipcp_option_list[] = {

       "disable defaultroute option", OPT_ALIAS | OPT_A2CLR,

       &ipcp_wantoptions[0].default_route },

+    { "cleardefaultroute", o_bool, &ipcp_wantoptions[0].clear_default_route,

+      "Clear default route before assignment", OPT_ENABLE|1, &ipcp_allowoptions[0].clear_default_route },

+    { "nocleardefaultroute", o_bool, &ipcp_allowoptions[0].clear_default_route,

+      "disable cleardefaultroute option", OPT_A2CLR,

+      &ipcp_wantoptions[0].clear_default_route },

+    { "-cleardefaultroute", o_bool, &ipcp_allowoptions[0].clear_default_route,

+      "disable cleardefaultroute option", OPT_ALIAS | OPT_A2CLR,

+      &ipcp_wantoptions[0].clear_default_route },

+

     { "proxyarp", o_bool, &ipcp_wantoptions[0].proxy_arp,

       "Add proxy ARP entry", OPT_ENABLE|1, &ipcp_allowoptions[0].proxy_arp },

     { "noproxyarp", o_bool, &ipcp_allowoptions[0].proxy_arp,

@@ -600,6 +609,7 @@ ipcp_init(unit)

      */

     ao->proxy_arp = 1;

     ao->default_route = 1;

+    ao->clear_default_route = 1;

 }

@@ -1798,9 +1808,12 @@ ipcp_up(f)

 	sifnpmode(f->unit, PPP_IP, NPMODE_PASS);

 	/* assign a default route through the interface if required */

-	if (ipcp_wantoptions[f->unit].default_route) 

+	if (ipcp_wantoptions[f->unit].default_route) {

+	    if (ipcp_wantoptions[f->unit].clear_default_route) 

+		cifdefaultroute(f->unit, 0, 0);

 	    if (sifdefaultroute(f->unit, go->ouraddr, ho->hisaddr))

 		default_route_set[f->unit] = 1;

+	}

 	/* Make a proxy ARP entry if requested. */

 	if (ipcp_wantoptions[f->unit].proxy_arp)

diff -uprk.orig ppp-20031003.orig/pppd/ipcp.h ppp-20031003/pppd/ipcp.h

--- ppp-20031003.orig/pppd/ipcp.h	2002-12-05 02:05:09 +0300

+++ ppp-20031003/pppd/ipcp.h	2003-12-04 17:04:20 +0300

@@ -70,6 +70,7 @@ typedef struct ipcp_options {

     bool old_addrs;		/* Use old (IP-Addresses) option? */

     bool req_addr;		/* Ask peer to send IP address? */

     bool default_route;		/* Assign default route through interface? */

+    bool clear_default_route;	/* Clear default route through interface before assignment? */

     bool proxy_arp;		/* Make proxy ARP entry for peer? */

     bool neg_vj;		/* Van Jacobson Compression? */

     bool old_vj;		/* use old (short) form of VJ option? */

diff -uprk.orig ppp-20031003.orig/pppd/sys-linux.c ppp-20031003/pppd/sys-linux.c

--- ppp-20031003.orig/pppd/sys-linux.c	2003-05-01 16:45:13 +0400

+++ ppp-20031003/pppd/sys-linux.c	2003-12-04 17:04:20 +0300

@@ -1628,6 +1628,13 @@ int cifdefaultroute (int unit, u_int32_t

     default_route_gateway = 0;

+    if (!gateway) {

+	if (defaultroute_exists(&rt))

+	    gateway = SIN_ADDR(rt.rt_gateway);

+	else

+	    return 0;

+    }

+

     memset (&rt, '\0', sizeof (rt));

     SET_SA_FAMILY (rt.rt_dst,     AF_INET);

     SET_SA_FAMILY (rt.rt_gateway, AF_INET);