From 85c101d73c3654e014a60f6f1e5bcddaeb74d18b Mon Sep 17 00:00:00 2001
From: Sascha Wildner <saw@online.de>
Date: Wed, 16 Oct 2013 06:15:50 +0200
Subject: [PATCH] ppp(8): Fix a logic error.

MPPE only accepts protocol numbers 0x21 through 0xfa.

Confirmed-by: FreeBSD
---
 usr.sbin/ppp/mppe.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr.sbin/ppp/mppe.c b/usr.sbin/ppp/mppe.c
index a991ae61e1..41b98e5e44 100644
--- a/usr.sbin/ppp/mppe.c
+++ b/usr.sbin/ppp/mppe.c
@@ -168,7 +168,7 @@ MPPEOutput(void *v, struct ccp *ccp, struct link *l __unused, int pri __unused,
   dictinit = 0;
 
   log_Printf(LogDEBUG, "MPPE: Output: Proto %02x (%d bytes)\n", *proto, ilen);
-  if (*proto < 0x21 && *proto > 0xFA) {
+  if (*proto < 0x21 || *proto > 0xFA) {
     log_Printf(LogDEBUG, "MPPE: Output: Not encrypting\n");
     ccp->compout += ilen;
     ccp->uncompout += ilen;
-- 
2.41.0