hyperlink settings

Does anyone know the hyperlink settings to look at an AIX5L box?

If you mean the ASMI interface through the HMC ports the default settings are:
Port - IP - netmask
HMC1 - 192.168.2.146 - 255.255.255.0
HMC2 - 192.168.3.146 - 255.255.255.0

Accessible from any other valid host address of the 192.168.2/24 or 192.168.3/24 net.