Current setup is a Bonded T on a Cisco 2610 with mutilple static ip's. Cisco 2610 has a single ethernet port to a Watchguard Firewall appliance that uses one of static ip's and a single LAN behind it. Need to add an Edgewater 4500 router to the Cisco 2610 for Voip network that will use a different static ip and not be connected to the existing Lan or Firewall. As a 'Best Practice' should I add a switch in front of the Firewall and create Vlans for the two networks or should I get a Cisco 2611 Router that has two ethernet ports? Looking more at the security and performace issues/benefits of which way to go.