>Number: 153244
>Category: kern
>Synopsis: em(4) failes to send UDP to port 0xffff
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Dec 17 10:20:06 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator: Daniel Braniss
>Release: FreeBSD 8.1-STABLE amd64
>Organization:
>Environment:
System:FreeBSD pampa 8.2-PRERELEASE FreeBSD 8.2-PRERELEASE #12 r4245: Fri Dec
10 09:12:57 IST 2010 da...@rnd:/home/obj/rnd/r+d/stable/8/sys/HUJI amd64
>Description:
with TXCSUM on, the em failes to send a UDP packet to port (short)-1
(0xffff)
>How-To-Repeat:
nc -u some-host 65535
and watch via wireshark
>Fix:
workaround: ifconfig em0 -txcsum
>Release-Note:
>Audit-Trail:
>Unformatted:
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