From nobody@FreeBSD.ORG  Thu Jul 27 12:27:47 2000
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Date: Thu, 27 Jul 2000 12:27:47 -0700 (PDT)
From: larse@isi.edu
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Subject: 4.1-RC: UDP checksum problem
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>Number:         20227
>Category:       kern
>Synopsis:       4.1-RC: UDP checksum problem
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    jlemon
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jul 27 12:30:01 PDT 2000
>Closed-Date:    Fri Jun 15 14:32:48 PDT 2001
>Last-Modified:  Fri Jun 15 14:33:41 PDT 2001
>Originator:     Lars Eggert
>Release:        4.1-RC
>Organization:
USC/ISI
>Environment:
FreeBSD hbo.isi.edu 4.1-RC FreeBSD 4.1-RC #0: Mon Jul 24 16:24:30 PDT 2000     larse@hbo.isi.edu:/usr/obj/usr/src/sys/PRECISION  i386

>Description:
There seems to be a problem with the UDP checksum code. I've found that
multicast loopback packets are always dropped because of bad UDP 
checksum, but don't understand why.
>How-To-Repeat:

>Fix:
sysctl -w net.inet.udp.checksum=0

>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->jlemon 
Responsible-Changed-By: sheldonh 
Responsible-Changed-When: Fri Jul 28 01:58:43 PDT 2000 
Responsible-Changed-Why:  
Looks like Jonathan's arena. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=20227 
State-Changed-From-To: open->closed 
State-Changed-By: jlemon 
State-Changed-When: Fri Jun 15 14:32:48 PDT 2001 
State-Changed-Why:  
I believe this has been fixed in r1.78 of udp_usrreq.c, on 2000/11/01. 
Please let us know if this is not the case. 


http://www.FreeBSD.org/cgi/query-pr.cgi?pr=20227 
>Unformatted:
