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Date:      Wed, 17 Sep 2014 00:12:23 +0200
From:      "O. Hartmann" <ohartman@zedat.fu-berlin.de>
To:        Adrian Chadd <adrian@freebsd.org>
Cc:        Kevin Oberman <rkoberman@gmail.com>, FreeBSD CURRENT <freebsd-current@freebsd.org>, FreeBSD Questions <freebsd-questions@freebsd.org>
Subject:   Re: 11.0-CURRENT and Lenovo ThinkPad E540: No LAN, no WiFI
Message-ID:  <20140917001223.526d9560.ohartman@zedat.fu-berlin.de>
In-Reply-To: <CAJ-Vmomkqzf+DZpg15gEyv5ZY3ePNu-0h4n1PqJX9uO8VpA5-g@mail.gmail.com>
References:  <20140915233833.5bdd0725.ohartman@zedat.fu-berlin.de> <CAN6yY1vP-CCOy8aWp8m1z2ijkRH5pm-UeXKf9i-QKf4jesCKUA@mail.gmail.com> <CAJ-Vmomyd6yPWOdWO-GUe_ZxFpyE-FZbsdEVBGhcMUr64_o5gg@mail.gmail.com> <20140916131854.46acc5fb.ohartman@zedat.fu-berlin.de> <CAJ-Vmomkqzf+DZpg15gEyv5ZY3ePNu-0h4n1PqJX9uO8VpA5-g@mail.gmail.com>

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Am Tue, 16 Sep 2014 08:40:25 -0700
Adrian Chadd <adrian@freebsd.org> schrieb:

> Ah, jumbo frames. Maybe you got lucky and some ethernet drivers
> default to accepting larger frames even if the MTU is 1500.
>=20
>=20
> -a


It is not the jumbo frame that makes this specific NIC work, I have to set =
the mtu
explicitely to make it work.

To make this notebook work in different departments, I need to use DHCP. At=
 the moment I
have to set the mtu manually, disbaling and reenabling the NIC (ifconfig re=
0 down,
ifconfig re0 mtu xxxx, ifconfig re0 up).

This seems to be strange. After that, the NIC seems to work as expected and=
 the Laptop
has connection.

Oliver

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