jwhiteuwc@gmail.com wrote:

(snip)

> What I'm looking to do is send the IP phone traffic down our T1
> connection.

> Send the computer/Data traffic down our cable modem connection.
> Basically looking to use our T1 for VoIP traffic and our cable modem
> for Data only without rewiring the entire building.

> Being that the computers are plugged into the phones, I'm thinking it's
> MAC based VLANS.

Easier to do at layer 3 by putting them on different IP subnets (on the
same cable). Routers on the T1 and cable modem will select only the
appropriate IP addresses.

comp.protocols.tcp-ip added.

-- glen

Thanks for the suggestion.

So would this be the setup?

VoIP phones:
192.168.0.x mask: 255.255.255.0
Gateway 192.168.0.1

Computers: 192.168.1.x Mask: 255.255.255.0
Gateway: 192.168.1.1

Here's the question:

Will both routers be plugged into the same switch and traffic will just
be sent down the correct router and gateway specified by the device?

How about using DHCP, wouldn't this pose a problem? I would have to do
static mappings or reservations for everything, right? I can't have 2
DHCP servers on the same LAN, right?

Any other replies?

jwhiteuwc wrote:
> Thanks for the suggestion.
>
> So would this be the setup?
>
> VoIP phones:
> 192.168.0.x mask: 255.255.255.0
> Gateway 192.168.0.1
>
> Computers: 192.168.1.x Mask: 255.255.255.0
> Gateway: 192.168.1.1
>
> Here's the question:
>
> Will both routers be plugged into the same switch and traffic will just
> be sent down the correct router and gateway specified by the device?

Why use two routers at all? One router with 2 inetfaces (or 3 for 2 lans
plus internet) Or use one router with just 1 interface that supports
tagged vlans natively. Plug that one interface into the switch, and set
it up as tagged...

Yes, you could have everything plugged into that one switch. So long as
you make sure the vlan port mappings are set correctly on it.

>
> How about using DHCP, wouldn't this pose a problem?

No, why?

> I would have to do
> static mappings or reservations for everything, right?\

No. Why would you?

> I can't have 2
> DHCP servers on the same LAN, right?
>
Correct. But the above example is 2 lans. You can do it with just one
DHCP server with a connection to each lan, or two seperate servers, or
one server and a forwarder. But they key concept is that when you break
it up at layer 3 as above, it is now > 1 lan (in this case, it is now 2
lans)