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Date:      Thu, 17 Aug 2006 13:27:05 +0200
From:      des@des.no (Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?=)
To:        Dinesh Nair <dinesh@alphaque.com>
Cc:        pyunyh@gmail.com, freebsd-hackers@freebsd.org, freebsd-hardware@freebsd.org
Subject:   Re: Unable to get RealTek 8139C+ to work with re(4) under FreeBSD 6.1
Message-ID:  <86sljvli0m.fsf@xps.des.no>
In-Reply-To: <44E4073C.9010008@alphaque.com> (Dinesh Nair's message of "Thu, 17 Aug 2006 14:05:48 %2B0800")
References:  <44E040CF.9080205@alphaque.com> <44E05598.20004@alphaque.com> <20060816123731.GE45370@cdnetworks.co.kr> <44E4073C.9010008@alphaque.com>

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Dinesh Nair <dinesh@alphaque.com> writes:
> i never got re(4) working, and the patch i'm currently using forces
> the use of rl(4) instead of using re(4). using rl(4) still shows
> media as none, but it works the way it should with packets going in
> and out. i've yet to try dag-erling's suggestion of disabling rx and
> tx checksums. i'll also try with the patch you sent it to see if
> that works.

If you can receive but not transmit (as I understood from other posts
in the thread, though you never answered my question about tcpdump),
disabling tx checksum offloading should be the *first* thing to try,
especially as there is a known bug in some RealTek chipsets which will
cause tx checksums to be computed incorrectly for short packets (such
as ICMP echo replies, or TCP handshake frames).

DES
--=20
Dag-Erling Sm=F8rgrav - des@des.no



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