llc packet problem

hi guys,
I am trying to implement a ping using LLC. I send a raw packet to the othe side and ethereal picks it up and decodes it properly.
Basically i am sending a TEST command in my LLC packet. However, I get no response. Whats wrong? I tried it on diff NICs and diff OSes but no luck. I thought all NICs had to implement the ability to respond to a TEST command.

Anyone got any ideas?

thanx
prometheus
[438 byte] By [prometheus_ds] at [2007-11-18 20:30:16]