diff -r -U4 ppp-2.4.4/pppd/main.c ppp-2.4.4+ifname/pppd/main.c
--- ppp-2.4.4/pppd/main.c	2006-06-04 04:52:50.000000000 +0100
+++ ppp-2.4.4+ifname/pppd/main.c	2009-11-01 11:36:48.000000000 +0000
@@ -735,10 +735,13 @@
 void
 set_ifunit(iskey)
     int iskey;
 {
-    info("Using interface %s%d", PPP_DRV_NAME, ifunit);
-    slprintf(ifname, sizeof(ifname), "%s%d", PPP_DRV_NAME, ifunit);
+    if (use_ifname[0] == 0)
+	slprintf(ifname, sizeof(ifname), "%s%d", PPP_DRV_NAME, ifunit);
+    else
+	slprintf(ifname, sizeof(ifname), "%s", use_ifname);
+    info("Using interface %s", ifname);
     script_setenv("IFNAME", ifname, iskey);
     if (iskey) {
 	create_pidfile(getpid());	/* write pid to file */
 	create_linkpidfile(getpid());
diff -r -U4 ppp-2.4.4/pppd/options.c ppp-2.4.4+ifname/pppd/options.c
--- ppp-2.4.4/pppd/options.c	2006-06-18 12:26:00.000000000 +0100
+++ ppp-2.4.4+ifname/pppd/options.c	2009-11-01 11:01:11.000000000 +0000
@@ -109,8 +109,9 @@
 int	log_to_fd = 1;		/* send log messages to this fd too */
 bool	log_default = 1;	/* log_to_fd is default (stdout) */
 int	maxfail = 10;		/* max # of unsuccessful connection attempts */
 char	linkname[MAXPATHLEN];	/* logical name for link */
+char	use_ifname[IFNAMSIZ];	/* physical name for PPP link */
 bool	tune_kernel;		/* may alter kernel settings */
 int	connect_delay = 1000;	/* wait this many ms after connect script */
 int	req_unit = -1;		/* requested interface unit */
 bool	multilink = 0;		/* Enable multilink operation */
@@ -253,8 +254,11 @@
 
     { "linkname", o_string, linkname,
       "Set logical name for link",
       OPT_PRIO | OPT_PRIV | OPT_STATIC, NULL, MAXPATHLEN },
+    { "ifname", o_string, use_ifname,
+      "Set physical name for PPP interface",
+      OPT_PRIO | OPT_PRIV | OPT_STATIC, NULL, IFNAMSIZ },
 
     { "maxfail", o_int, &maxfail,
       "Maximum number of unsuccessful connection attempts to allow",
       OPT_PRIO },
diff -r -U4 ppp-2.4.4/pppd/pppd.h ppp-2.4.4+ifname/pppd/pppd.h
--- ppp-2.4.4/pppd/pppd.h	2005-08-26 00:59:34.000000000 +0100
+++ ppp-2.4.4+ifname/pppd/pppd.h	2009-11-01 11:19:10.000000000 +0000
@@ -54,8 +54,9 @@
 #include <sys/param.h>		/* for MAXPATHLEN and BSD4_4, if defined */
 #include <sys/types.h>		/* for u_int32_t, if defined */
 #include <sys/time.h>		/* for struct timeval */
 #include <net/ppp_defs.h>
+#include <linux/if.h>
 #include "patchlevel.h"
 
 #if defined(__STDC__)
 #include <stdarg.h>
@@ -307,8 +308,9 @@
 extern char	*record_file;	/* File to record chars sent/received */
 extern bool	sync_serial;	/* Device is synchronous serial device */
 extern int	maxfail;	/* Max # of unsuccessful connection attempts */
 extern char	linkname[MAXPATHLEN]; /* logical name for link */
+extern char	use_ifname[IFNAMSIZ]; /* physical name for PPP interface */
 extern bool	tune_kernel;	/* May alter kernel settings as necessary */
 extern int	connect_delay;	/* Time to delay after connect script */
 extern int	max_data_rate;	/* max bytes/sec through charshunt */
 extern int	req_unit;	/* interface unit number to use */
diff -r -U4 ppp-2.4.4/pppd/sys-linux.c ppp-2.4.4+ifname/pppd/sys-linux.c
--- ppp-2.4.4/pppd/sys-linux.c	2005-08-26 23:44:35.000000000 +0100
+++ ppp-2.4.4+ifname/pppd/sys-linux.c	2009-11-01 11:33:02.000000000 +0000
@@ -167,8 +167,12 @@
 
 /* We can get an EIO error on an ioctl if the modem has hung up */
 #define ok_error(num) ((num)==EIO)
 
+#if !defined(PPP_DRV_NAME)
+#define PPP_DRV_NAME	"ppp"
+#endif /* !defined(PPP_DRV_NAME) */
+
 static int tty_disc = N_TTY;	/* The TTY discipline */
 static int ppp_disc = N_PPP;	/* The PPP discpline */
 static int initfdflags = -1;	/* Initial file descriptor flags for fd */
 static int ppp_fd = -1;		/* fd which is set to PPP discipline */
@@ -612,9 +616,10 @@
  * Assumes new_style_driver.
  */
 static int make_ppp_unit()
 {
-	int x, flags;
+	struct ifreq ifr;
+	int x, flags, s;
 
 	if (ppp_dev_fd >= 0) {
 		dbglog("in make_ppp_unit, already had /dev/ppp open?");
 		close(ppp_dev_fd);
@@ -635,8 +640,34 @@
 		x = ioctl(ppp_dev_fd, PPPIOCNEWUNIT, &ifunit);
 	}
 	if (x < 0)
 		error("Couldn't create new ppp unit: %m");
+
+	if (use_ifname[0] != 0) {
+		s = socket(PF_INET, SOCK_DGRAM, 0);
+		if (s < 0)
+			s = socket(PF_PACKET, SOCK_DGRAM, 0);
+		if (s < 0)
+			s = socket(PF_INET6, SOCK_DGRAM, 0);
+		if (s < 0)
+			s = socket(PF_UNIX, SOCK_DGRAM, 0);
+		if (s >= 0) {
+			slprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "%s%d", PPP_DRV_NAME, ifunit);
+			slprintf(ifr.ifr_newname, sizeof(ifr.ifr_newname), "%s", use_ifname);
+			x = ioctl(s, SIOCSIFNAME, &ifr);
+			close(s);
+		} else {
+			x = s;
+		}
+		if (x < 0) {
+			error("Couldn't rename %s to %s", ifr.ifr_name, ifr.ifr_newname);
+			close(ppp_dev_fd);
+			ppp_dev_fd = -1;
+		} else {
+			info("Renamed %s to %s", ifr.ifr_name, ifr.ifr_newname);
+		}
+	}
+
 	return x;
 }
 
 /*
diff -r -U4 ppp-2.4.4/pppstats/pppstats.c ppp-2.4.4+ifname/pppstats/pppstats.c
--- ppp-2.4.4/pppstats/pppstats.c	2002-11-09 11:24:43.000000000 +0000
+++ ppp-2.4.4+ifname/pppstats/pppstats.c	2009-11-01 15:24:31.000000000 +0000
@@ -505,12 +505,14 @@
 	usage();
     if (argc > 0)
 	interface = argv[0];
 
+/*
     if (sscanf(interface, PPP_DRV_NAME "%d", &unit) != 1) {
 	fprintf(stderr, "%s: invalid interface '%s' specified\n",
 		progname, interface);
     }
+*/
 
 #ifndef STREAMS
     {
 	struct ifreq ifr;