I am having a problem configuring 802.1X and a cisco IP phone on a Cisco 2821 router with IOS c2800nm-adventerprisek9-mz.124-15.T5.
When i configure 802.1X without connecting the IP phone, the router accepts the config , but the phone does not work when i connect it.
When i connect the phone before configuring the 802.1X the router does not accept this config.
I am working with Voice and data vlan.
Does anybody know of a bug in the sofware or something?
The should support the features according to the feature navigator.
Thanks a lot in advance