Port 6002, 2002, 4002

Hi! I've found that on the Fa0/1 (WAN) address are opened port 2002, 4002, 6002 (eventually 9002 but now I don't remember) which are DIRECT telnet to the CUE! I haven't seen anything about these ports anywhere on the internet. I closed them with an access list on the interface but are they supposed to be open?
I've software 4.2(6). Ideas?

Thanks!

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