how can my e450 be booted without a keyboard or console?

there is no frame buffer or no console connextions from term a or b, the worst, no keyboard attached. after i power it up, the running led will blink but its ip address cannot be pingable. after power down and a sun's keyboard is attached and power up again, everything is normal. but the keyboard was stolen from my collegue, i have 2 return it back him. how can i boot up my e450 without a keyboard,console connexion or frame buffer? many thanks!!!

[465 byte] By [richx] at [2007-11-25 23:21:14]