From nobody@FreeBSD.org  Thu Feb 10 10:33:17 2005
Return-Path: <nobody@FreeBSD.org>
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 0BDF616A4CE
	for <freebsd-gnats-submit@FreeBSD.org>; Thu, 10 Feb 2005 10:33:17 +0000 (GMT)
Received: from www.freebsd.org (www.freebsd.org [216.136.204.117])
	by mx1.FreeBSD.org (Postfix) with ESMTP id E642743D4C
	for <freebsd-gnats-submit@FreeBSD.org>; Thu, 10 Feb 2005 10:33:16 +0000 (GMT)
	(envelope-from nobody@FreeBSD.org)
Received: from www.freebsd.org (localhost [127.0.0.1])
	by www.freebsd.org (8.13.1/8.13.1) with ESMTP id j1AAXG4W091880
	for <freebsd-gnats-submit@FreeBSD.org>; Thu, 10 Feb 2005 10:33:16 GMT
	(envelope-from nobody@www.freebsd.org)
Received: (from nobody@localhost)
	by www.freebsd.org (8.13.1/8.13.1/Submit) id j1AAXG4m091879;
	Thu, 10 Feb 2005 10:33:16 GMT
	(envelope-from nobody)
Message-Id: <200502101033.j1AAXG4m091879@www.freebsd.org>
Date: Thu, 10 Feb 2005 10:33:16 GMT
From: subhajit <subhajit.pal@gmail.com>
To: freebsd-gnats-submit@FreeBSD.org
Subject: IPV6  impementation
X-Send-Pr-Version: www-2.3

>Number:         77341
>Category:       kern
>Synopsis:       [ip6] problems with IPV6 implementation
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-net
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Feb 10 10:40:12 GMT 2005
>Closed-Date:    
>Last-Modified:  Thu Mar 26 15:58:09 UTC 2009
>Originator:     subhajit
>Release:        5.3
>Organization:
IXIA CM
>Environment:
FreeBSD IxSubhajit2.ixiacom.com 5.3-RELEASE FreeBSD 5.3-RELEASE #0: Fri Nov  5 04:19:18 UTC 2004     root@harlow.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
  
>Description:
      Had Following problem in IPV6 imlementation 

 | Linux |-<eth1>------------------<rl0>-| FREE BSD |

Sent an ping6 request from Linux to FreeBSD

Got Ping Echo Reply

Now deleted the interface IPV6 adrress from the FREEBSD Cache by 

# ndp -d <ipb6AddressOfLinuxEth1>%rl0

Then send continuous ping request ( Echo request from linux , eth1 ) to FreeBSD

FreeBSD not sending any neighbor soliciation message.

Finally no Ping Reply back msg from FREEBSD to Linux.

Conclusion : FreeBSD is not initiating Neighbor solicition message in response to ICMPV6 Echo request if Neighbor cache is empty.
>How-To-Repeat:
            Had Following problem in IPV6 imlementation 

 | Linux |-<eth1>------------------<rl0>-| FREE BSD |

Sent an ping6 request from Linux to FreeBSD

Got Ping Echo Reply

Now deleted the interface IPV6 adrress from the FREEBSD Cache by 

# ndp -d <ipb6AddressOfLinuxEth1>%rl0

Then send continuous ping request ( Echo request from linux , eth1 ) to FreeBSD

FreeBSD not sending any neighbor soliciation message.

Finally no Ping Reply back msg from FREEBSD to Linux.

Conclusion : FreeBSD is not initiating Neighbor solicition message in response to ICMPV6 Echo request if Neighbor cache is empty.
>Fix:
>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->freebsd-net 
Responsible-Changed-By: brucec 
Responsible-Changed-When: Thu Mar 26 15:57:51 UTC 2009 
Responsible-Changed-Why:  
Over to maintainer(s). 

http://www.freebsd.org/cgi/query-pr.cgi?pr=77341 
>Unformatted:
