diff -Nur ppp-2.4.2/pppd.orig/auth.c ppp-2.4.2/pppd/auth.c
--- ppp-2.4.2/pppd.orig/auth.c	2003-06-12 01:56:26.000000000 +0200
+++ ppp-2.4.2/pppd/auth.c	2004-09-18 16:10:54.004502160 +0200
@@ -1506,8 +1506,11 @@
      */
 
     tty = devnam;
-    if (strncmp(tty, "/dev/", 5) == 0)
+    if (strncmp(tty, "/dev/", 5) == 0) {
 	tty += 5;
+    } else if (strncmp(tty, "/udev/", 6) == 0) {
+	tty += 6;
+    }
     logwtmp(tty, user, ifname);		/* Add wtmp login entry */
 
 #if defined(_PATH_LASTLOG) && !defined(USE_PAM)
@@ -1552,8 +1555,11 @@
     char *tty;
 
     tty = devnam;
-    if (strncmp(tty, "/dev/", 5) == 0)
+    if (strncmp(tty, "/dev/", 5) == 0) {
 	tty += 5;
+    } else if (strncmp(tty, "/udev/", 6) == 0) {
+	tty += 6;
+    }
     logwtmp(tty, "", "");		/* Wipe out utmp logout entry */
 #endif /* ! USE_PAM */
     logged_in = 0;
diff -Nur ppp-2.4.2/pppd.orig/options.c ppp-2.4.2/pppd/options.c
--- ppp-2.4.2/pppd.orig/options.c	2004-01-13 05:02:07.000000000 +0100
+++ ppp-2.4.2/pppd/options.c	2004-09-18 17:05:09.334032064 +0200
@@ -487,8 +487,11 @@
     size_t pl;
 
     dev = devnam;
-    if ((p = strstr(dev, "/dev/")) != NULL)
+    if ((p = strstr(dev, "/dev/")) != NULL) {
 	dev = p + 5;
+    } else if ((p = strstr(dev, "/udev/")) != NULL) {
+	dev = p + 6;
+    }
     if (dev[0] == 0 || strcmp(dev, "tty") == 0)
 	return 1;		/* don't look for /etc/ppp/options.tty */
     pl = strlen(_PATH_TTYOPT) + strlen(dev) + 1;
diff -Nur ppp-2.4.2/pppd.orig/tty.c ppp-2.4.2/pppd/tty.c
--- ppp-2.4.2/pppd.orig/tty.c	2004-01-13 05:17:59.000000000 +0100
+++ ppp-2.4.2/pppd/tty.c	2004-09-18 17:04:27.953757120 +0200
@@ -300,7 +300,7 @@
 	if (*cp == 0)
 		return 0;
 
-	if (strncmp("/dev/", cp, 5) != 0) {
+	if (strncmp("/dev/", cp, 5) != 0 && strncmp("/udev/", cp, 6) != 0) {
 		strlcpy(dev, "/dev/", sizeof(dev));
 		strlcat(dev, cp, sizeof(dev));
 		cp = dev;