Subject: Re: My e1000e GBE card is eating all port 623 pks

From: Brice Goglin <[email-masked]>
Date: Wed, 25 Apr 2012 11:57:47 +0200

On 25/04/2012 11:06, Joakim Tjernlund wrote:
> Jesse Brandeburg<[email-masked]>  wrote on 2012/04/24 23:51:28:
>> On Sat, 21 Apr 2012 15:31:09 +0200
>> Joakim Tjernlund<[email-masked]>  wrote:
>>
>>> Looks like port 623 is some mgmt protocol and our e1000e boards are eating these
>>> pkgs and this trips NIS, finger and yptest hangs for a long time before timing out and
>>> moving on.
>>>
>>> Is there a way to tell the network stack not to eat port 623 pkgs or
>>> have NIS not to use port 623?
>> I think you might be looking for something like portreserve
>> (see man portreserve)
> Seen portreserve on the web(gentoo does not have it) but it seems like a workaround.
> Should not eating port 623 be something one should turn on? Now it is default on
> and I cannot find a way to turn it off.
>

It might be related to IPMI (UDP/623 iirc). Try looking in your BIOS 
and/or network firmware config at boot, there might be things to disable 
there.

Brice