diff -u ppp/bundle.c ppp_new/bundle.c
--- ppp/bundle.c	Wed Apr 24 20:21:18 2002
+++ ppp_new/bundle.c	Thu Jul 18 11:56:06 2002
@@ -1869,6 +1869,9 @@
 
   tun_configure(bundle);
 
+  /* XXX */
+  bundle->iface->mtu = 1454;
+
   route_UpdateMTU(bundle);
 }
 
diff -u ppp/hdlc.h ppp_new/hdlc.h
--- ppp/hdlc.h	Wed Apr 24 20:21:23 2002
+++ ppp_new/hdlc.h	Thu Jul 18 11:55:24 2002
@@ -43,7 +43,7 @@
 #define INITFCS 0xffff		/* Initial value for FCS computation */
 #define GOODFCS 0xf0b8		/* Good FCS value */
 
-#define	DEF_MRU		1500
+#define	DEF_MRU		1454
 #define	MAX_MRU		2048
 #define	MIN_MRU		296