asterisk users - Apr 2007 - 100 users - voip lan security and qos ?

i have a customer that needs to plug the phones into the pc's
using the pass-through rj45 available on most sip phones

the question they are asking me is how to keep the data network
separate from / secure from the voip network

i understand they can set up vlans but i am hazy on a few details

1
since the phones are plugged into the pc's how will the phones
be segmented into their own vlan ?

2
assuming the phone sends out a tos bit, how can we confirm
that the customer's switch can read the tos bit and correctly
prioritize it ?

3
to prioritize voip in the router (coming from the switch)
we are looking at the wrtg54L and have
found these 2 juicy websites
http://openwrt.org
and
http://www.dd-wrt.com/dd-wrtv2/index.php

has anyone downloaded and flashed the "voip" firmware ?
does it give worthwhile advantages over the default firmware ?
does the wrtg54L have any advantages over other routers ?

any other advice to offer ?

thank you so much in advance

_________________________________________________________________
Exercise your brain! Try Flexicon. 
http://games.msn.com/en/flexicon/default.htm?icid=flexicon_hmemailtaglineapril07

If you are using a cisco switch (2950, 3560, CE500, 4000, 6500, or 3750)
then you will be able to setup the phone and have the computer daisy
chained to it.

I have a similar setup on mine. Here's how I configure my switch ports
in order to achieve the desired effect:

switchport access vlan 5
switchport voice vlan 6
auto qos voip cisco-phone

This is assuming your data VLAN is configured as VLAN 5, and your VoIP
VLAN is on VLAN 6. This will allow the phone to create a trunk port and
facilitate both end nodes through one switch port.

HTH

- sf

A_ Navone wrote:
> i have a customer that needs to plug the phones into the pc's
> using the pass-through rj45 available on most sip phones
> 
> the question they are asking me is how to keep the data network
> separate from / secure from the voip network
> 
> i understand they can set up vlans but i am hazy on a few details
> 
> 1
> since the phones are plugged into the pc's how will the phones
> be segmented into their own vlan ?
> 
> 2
> assuming the phone sends out a tos bit, how can we confirm
> that the customer's switch can read the tos bit and correctly
> prioritize it ?
> 
> 3
> to prioritize voip in the router (coming from the switch)
> we are looking at the wrtg54L and have
> found these 2 juicy websites
> http://openwrt.org
> and
> http://www.dd-wrt.com/dd-wrtv2/index.php
> 
> has anyone downloaded and flashed the "voip" firmware ?
> does it give worthwhile advantages over the default firmware ?
> does the wrtg54L have any advantages over other routers ?
> 
> any other advice to offer ?
> 
> thank you so much in advance
> 
> _________________________________________________________________
> Exercise your brain! Try Flexicon.
>
http://games.msn.com/en/flexicon/default.htm?icid=flexicon_hmemailtaglineapril07
> 
> 
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