diff -ruN ppp-2.4.3-orig/pppd/plugins/rp-pppoe/plugin.c ppp-2.4.3-3/pppd/plugins/rp-pppoe/plugin.c
--- ppp-2.4.3-orig/pppd/plugins/rp-pppoe/plugin.c	2004-11-04 11:07:37.000000000 +0100
+++ ppp-2.4.3-3/pppd/plugins/rp-pppoe/plugin.c	2004-12-16 01:07:22.000000000 +0100
@@ -286,7 +286,7 @@
 	/* Strip off "nic-" */
 	cmd += 4;
     } else if (strlen(cmd) < 4
-	       || (strncmp(cmd, "eth", 3) && strncmp(cmd, "nas", 3)
+	       || (strncmp(cmd, "eth", 3) && strncmp(cmd, "nas", 3) && strncmp(cmd, "vlan", 4) && strncmp(cmd, "ath", 3)
 		   && strncmp(cmd, "tap", 3) && strncmp(cmd, "br", 2))) {
 	return 0;
     }