Traffic filtering on HP Procurve

Traffic filtering on HP Procurve

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Subject Author Date
Traffic filtering on HP Procurve ~matteo 11-22-2007
Posted by ~matteo on November 22, 2007, 10:54 am
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Hi all, I have an HP Procurve 4104gl that's the central node of the
enterprise network. There's a department in my enterprise which is
somehow independent, and basically they do what they want. I don't
care too much about what they do, apart from their dhcp server, which
I don't want "my" users to use (I want to configure my own one). How
can I drop dhcp packets passing by that port on the switch?

Thanks in advance.

Pure Networks
Posted by anoop on November 22, 2007, 12:14 pm
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> Hi all, I have an HP Procurve 4104gl that's the central node of the
> enterprise network. There's a department in my enterprise which is
> somehow independent, and basically they do what they want. I don't
> care too much about what they do, apart from their dhcp server, which
> I don't want "my" users to use (I want to configure my own one). How
> can I drop dhcp packets passing by that port on the switch?

Based on my reading of the data sheet, I'm not sure the 4104 has
the capability to do what you are looking for. You could try asking
your question on http://www.tek-tips.com/threadminder.cfm?pid=777
which is a forum focused on Procurve.

Anoop

Posted by anoop on November 22, 2007, 12:20 pm
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>
> > Hi all, I have an HP Procurve 4104gl that's the central node of the
> > enterprise network. There's a department in my enterprise which is
> > somehow independent, and basically they do what they want. I don't
> > care too much about what they do, apart from their dhcp server, which
> > I don't want "my" users to use (I want to configure my own one). How
> > can I drop dhcp packets passing by that port on the switch?
>
> Based on my reading of the data sheet, I'm not sure the 4104 has
> the capability to do what you are looking for. You could try asking
> your question onhttp://www.tek-tips.com/threadminder.cfm?pid=777
> which is a forum focused on Procurve.

One possibility for providing the isolation is to put the indepedent
department on its own VLAN and route between that department
and everyone else. This assumes that the department communicates
with everyone else using only IP.

Anoop

Posted by glen herrmannsfeldt on November 23, 2007, 5:32 am
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~matteo wrote:

> Hi all, I have an HP Procurve 4104gl that's the central node of the
> enterprise network. There's a department in my enterprise which is
> somehow independent, and basically they do what they want. I don't
> care too much about what they do, apart from their dhcp server, which
> I don't want "my" users to use (I want to configure my own one). How
> can I drop dhcp packets passing by that port on the switch?

This sounds like what should really be separate subnets.
You want a router between the two nets, not a switch.
Routers won't pass DCHP requests unless DHCP forwarding
is turned on.

-- glen


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