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Date: Tue, 8 Jul 2014 15:25:31 +0200
From: Kurt Jaeger <lists@opsec.eu>
To: Bob Healey <healer@rpi.edu>
Subject: Re: Interactions with mxge, pf, nfsd, and the kernel
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Hi!

> I've been running one of these machines without pf, and it has ceased 
> responding on all interfaces (mxge and bce).
> The console still works fine

Is a tcpdump on one of the interfaces seeing any traffic ? arp ? multicast ?

Is a tcpdump seeing any outgoing packets if you send them ?

If you plug in a cross cable to some other host, does it see
bytes on the interface if you try to send traffic ?

Does

ifconfig <if> down
ifconfig <if> up

help ? Is the switch still seeing a link ? Does it change if you
ifconfig down ?

Does it change if you unplug and re-plug the cable ?

-- 
pi@opsec.eu            +49 171 3101372                         6 years to go !