From owner-freebsd-bugs  Thu Oct 19 10:20: 5 2000
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Date: Thu, 19 Oct 2000 10:18:49 -0700 (PDT)
From: habeeb@cfl.rr.com
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Subject: misc/22129: problem with FreeBSD calculating checksum on UDP packets
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>Number:         22129
>Category:       misc
>Synopsis:       problem with FreeBSD calculating checksum on UDP packets
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Oct 19 10:20:00 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     David S.
>Release:        4.0 release
>Organization:
>Environment:
FreeBSD ubr-27.210.121.melbourne.cfl.rr.com 4.0-RELEASE FreeBSD
4.0-RELEASE #0: Mon Mar 20 22:50:22 GMT 2000 root@monster.cdrom.com:
/usr/src/sys/compile/GENERIC  i386
>Description:
It appears when I have been trying to create a raw UDP socket when I run
tcpdump -vvv it tells me my checksum is wrong.  I would assume this is
possibly a problem in FreeBSD or maybe something changed where tcpdump
isn't working properly?  I have tested multiple raw socket builders,
and nmap.  Which all have bad checksums so is said.
I would upgrade, but 'make' 'cc' crash, and my video card seems to crash
also.  I guess it is problems with my 486?  It is not a big problem, but
if you want to get into that it would help.
>How-To-Repeat:
Try any program that uses raw UDP sockets they all seem to fail.
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:


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