Strange IOS as DHCP Client behevior
> 10.2.2.140 0063.6973.636f.2d30. Dec 20 2014 11:44 AM
> Do you have idea why MAC is so weird ? Rest clients – Eg. Linux or Window
> boxes MACs is displayed correctly.
It’s not a MAC address, it’s a client identifier. And IOS by default
chooses a text string as client identifier. In your case it’s:
> Anything to configure at Cisco clients to have proper MAC in binding
> database ?
The above example is completely proper. I’m not aware of any method for
making IOS not use a client identifier, but you can change the
identifier it sends via e.g. “ip dhcp client client-id …” interface