yes you can!! (as long as you have access to the server console - you can use iLO as you asked - you can perform the following)
esxcfg-vswitch -L vmnic0 vSwitch0 (this command adds the vmnic0 to vSwitch0, which is the switch where the Service Console PortGroup exists)
you could assign whatever nic you have available (vmnic0, vmnic1, etc)
hope it helps, if so, provide points if helpful
Jose B Ruelas
Jose B Ruelas
http://aservir.wordpress.com