I have metro ethernet handoffs at each of my offices. HQ and 4 remote sites. I also have 3COM 2250 L2 switches at each location. How do I need to connect HQ to all the remote sites? I do not have routers at the remotes but do have a Cisco 2600 at HQ which is the default gateway. I plugged the HQ ethernet cable into the 3com switch at HQ and then the cable at one remote office to test. The ISP provider Optimum Lightpath could see to way broadcast traffic, but I was unable to ping from one end to another? What am I missing. I was told the connectivity can be done without routers as long as I have layer 2 switches.