[CentOS] Possible to have EthX acting like the ipaddress of the attached device (aka bridge) having no ipaddress?

Hi

I have a Centos 6.X router/firewall/gateway for a /29 network all connected to one ETHX that has a switch behind it.

This setup works very well but does NOT allow me to QOS one of the devices (a VOIP phone, many lines) as for "tc" to work I need a device, not ipaddress.

I thought to connect the VOIP phone directly to the router, but in doing so I need that interface to ACT like the IPADDRESS of the VOIP box, meaning the ethernet interface has no ipaddress acting like a bridge:

Internet | --------------------------- | router ip | | BRIDGE base of /29 --------------------------- | | | ------------- | | | | _____________ | | | | | | ---------------- | phone system | ----------------

That way I can use "tc" to prioritize the traffic for the phone system

If there are other ways to do this, please suggest.

thanks Jobst