I'm using a 3com 4200 switch connected to a Cisco 2621 router. I have VLAN subinterfaces that I created on the router, using VID's of 100, and 200. Those vlan's work with the 3com, however I need to allow VLAN1 for management purposes since the 3com will not allow an IP in any other vlan. I have created the subinterface on the router and tagged vlan1 to my trunk port on the 3com. It will not pass ip traffic. What is odd is that if I'm on the 3com switch and I ping the vlan 1 interface on the router, I see the proper ARP entry on the router for the 3com switch, however the ping will not pass. The only difference is that the subint on the cisco router states that "encapsulation dot1q 1 native" where my other interfaces have no "native" remark. Anything I'm missing here????
