--- quagga-0.99.14/vtysh/vtysh_user.c~	2009-06-19 17:26:00.000000000 +0200
+++ quagga-0.99.14/vtysh/vtysh_user.c	2009-08-04 10:28:14.000000000 +0200
@@ -52,7 +52,7 @@
   pam_handle_t *pamh = NULL;
 
   /* Start PAM. */
-  ret = pam_start(QUAGGA_PROGNAME, user, &conv, &pamh);
+  ret = pam_start("zebra", user, &conv, &pamh);
   /* printf ("ret %d\n", ret); */
 
   /* Is user really user? */