Index: src/link.c
===================================================================
--- src/link.c	(revision 2480)
+++ src/link.c	(working copy)
@@ -1549,7 +1549,7 @@ LinkSetCommand(Context ctx, int ac, const char *const 
     	    name = ((intptr_t)arg == SET_MTU) ? "MTU" : "MRU";
     	    if (val < LCP_MIN_MRU)
 		Error("min %s is %d", name, LCP_MIN_MRU);
-    	    else if (l->type && (val > l->type->mru)) {
+    	    else if (l->type && (val > l->type->mtu)) {
 		Error("max %s on type \"%s\" links is %d",
 		    name, l->type->name, l->type->mru);
     	    } else if ((intptr_t)arg == SET_MTU)
Index: src/pppoe.c
===================================================================
--- src/pppoe.c	(revision 2482)
+++ src/pppoe.c	(working copy)
@@ -31,7 +31,7 @@
  * DEFINITIONS
  */
 
-#define PPPOE_MTU		1492	/* allow room for PPPoE overhead */
+#define PPPOE_MTU		(ETHER_MAX_LEN_JUMBO - 8)
 #define PPPOE_MRU		1492
 
 #define PPPOE_CONNECT_TIMEOUT	9