PCI Ethernet Card With Five or Six Ports

PCI Ethernet Card With Five or Six Ports

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Subject Author Date
PCI Ethernet Card With Five or Six Ports Will 09-04-2006
Posted by Will on September 4, 2006, 4:24 pm
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I have an old firewall that is out of segments and has no additional slots
available. As a short-term fix, I would like to identify is there a make
and model or PCI ethernet card that supports five or more ports on the card?
We are already using four port cards.

--
Will



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Posted by Rick Jones on September 5, 2006, 2:35 pm
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> I have an old firewall that is out of segments and has no additional
> slots available. As a short-term fix, I would like to identify is
> there a make and model or PCI ethernet card that supports five or
> more ports on the card? We are already using four port cards.

While I cannot claim to have had a finger consistently on the pulse of
the Ethernet market, I'm pretty sure that four was the limit. Much
more than four ports and things might have started to get pretty tight
on the bulkhead.

Do you need physical ports, or could you start subdividing existing
physical ports with tagged VLANs? Or is the firewall too old for
that?

rick jones
--
Wisdom Teeth are impacted, people are affected by the effects of events.
these opinions are mine, all mine; HP might not want them anyway... :)
feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH...

Posted by Will on September 5, 2006, 9:07 pm
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> Do you need physical ports, or could you start subdividing existing
> physical ports with tagged VLANs? Or is the firewall too old for
> that?

VLANs are usually a hassle to configure, maintain, document, and there is
always the risk that someone did them wrong and you don't have the security
of separation you thought you had. I've also seen switches with bugs that
allow traffic to cross VLANs unintentionally.

--
Will




Posted by Manfred Kwiatkowski on September 6, 2006, 12:58 pm
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>> Do you need physical ports, or could you start subdividing existing
>> physical ports with tagged VLANs? Or is the firewall too old for
>> that?
>
>VLANs are usually a hassle to configure, maintain, document, and there is
>always the risk that someone did them wrong and you don't have the security
>of separation you thought you had. I've also seen switches with bugs that
>allow traffic to cross VLANs unintentionally.

A switch acting as a fanout of untagged ports is conceptually the
same as a multiport ethernet card. On the front you get seperated
ethernets an on the rear there runs some multiplexing software between
the cpu and some firmware you cannot check to 100%. It is just
an external ethernet card, that runs dot1q instead of a proprietary
protocol or e.g USB. BTW have you considered an USB-Ethernet
adapter if you put more confidence in that...?

--
Manfred Kwiatkowski kwiatkowski@zrz.tu-berlin.de

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other useful resources:
The Federal Communications Commission (FCC)
Telecommunications Industry Association
Electronic and Software Security Products and Services
International Telecommunication Union

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