On Thu, Jul 29, 2010 at 8:27 PM, Simon Hobson <span dir="ltr"><<a href="mailto:dhcp1@thehobsons.co.uk">dhcp1@thehobsons.co.uk</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im">Phusion wrote:<br>
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<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Up to this point, I've been programming each IP phone with a static IP<br>
address and entering the data.<br>
<br>
Phone: 192.168.101.x<br>
Call Server: 192.168.101.10<br>
Call Server Port: 1719<br>
Router: 192.168.101.1<br>
Mask: 255.255.255.0<br>
File Server: 192.168.1.34<br>
802.1Q: On<br>
VLAN ID: 101<br>
VLAN Test: 300<br>
<br>
Now, that we are using IP phones more it would be easier if the phones<br>
would get DHCP leases. I will also look to see where the DHCP server<br>
is plugged in respect to the power-over-ethernet switch and IP phones.<br>
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Hmm, I'm a bit slow off the mark today ...<br>
<br>
It's not something I've done - we haven't bothered segregating our small installation of IP telephony stuff (we have an Asterisk box and a few Grandstream and Aastra phones at work). I think what needs to happen is for the phone to boot on the default VLAN and get a config. Part of the config will be the VLAN it should be on, and on receiving that the phone should then switch VLAN and ask for a new address/config.<br>
<br>
If you think about it, if you are dynamically configuring the phones like this, it doesn't know the VLAN it should be on until it's at least partially configured.<br></blockquote><div><br></div><div>Do you have phones with switched ethernet ports so that the setup</div>
<div>is</div><div><br></div><div>PC ---> phone -----> (PoE) switch</div><div> </div><div>which is what we have with Mitel 5212/5234 phones, and Cisco</div><div>2950 switches with PoE injectors.</div><div><br></div><div>
I can't remember the Cisco config -- but there's some magic setup</div><div>so that the phone traffic is tagged and automagically assigned to </div><div>a "voice VLAN". Then the phones appear to be sitting in a physically</div>
<div>separate network & the DHCP config just treats the phones like</div><div>they're in a separate network. </div></div>-- <br>Soren Aalto<br>Director: ICT<br>University of Zululand<br>