Ports 623 & 624

[Nellios]

I have installed Mandrake 10.1 on a double Xeon that serves as:

a) Webserver
b) MailServer
c) Samba Server
d) dns server
e) Application Server (Java RMI)

I am running nmap localhost and all seem to be ok with my open ports.

When I try nmap with the static ip, I get this:

623 unknown filtered
624 unknown filtered

I have no idea what this is all about! As far as I know there is no known service using these ports and I do not use a firewall to filter them! Is there any possibility of introtion ? What should I do in this case?

[dylunio]

I'm not sure quite what is going on, but this list of ports says that the ports do:

asf-rmcp 623/tcp ASF Remote Management and Control Protocol
asf-rmcp 623/udp ASF Remote Management and Control Protocol