I feel like I'm a disgrace to my CCNA and the LONG years of studying. I'm having a problem with my VLAN communication. What i'm trying to do is setup a VoIP lab at home. I currently have a cisco 2621XM with my voice ports. My sub-interface for voice configured and the IP helper-address command configured. I've already have my DHCP scopes on my Domain Controller.
I've configured my 2950 VLAN's and IP's. the Data VLAN is on the default VLAN number and my voice is on VLAN 20. My subnet for data is 10.0.1.0 and Voice 10.1.1.x. My encapsulation on my trunked port is ISL and I understand the 2950 switch default (once trunked to the router) 802.1q is already set.
I'm stuck and getting flustrated. Can someone please guide me in the right path?
Also I know my switch is not a layer three switch, but can someone tell me why my Voice VLAN shuts down or my Data VLAN shuts down on my 2950 when I try and enable either one?