Subject: Off-by-one error with --dontfrag
Author: Christian Mock <cm@coretec.at>
Bugs-Debian: http://bugs.debian.org/537704
Last-Update: 2009-09-04

--- a/sendip_handler.c
+++ b/sendip_handler.c
@@ -19,7 +19,7 @@ void send_ip_handler(char *packet, unsig
 {
 	ip_optlen = ip_opt_build(ip_opt);
 
-	if (!opt_fragment && (size+ip_optlen+20 >= h_if_mtu))
+	if (!opt_fragment && (size+ip_optlen+20 > h_if_mtu))
 	{
 		/* auto-activate fragmentation */
 		virtual_mtu = h_if_mtu-20;