I am a little confused. I have got two 3Com 5500G-EI 24 Port Switches, stacked together, building my network backbone. Attached to them I have got a total of sixteen 3Com 4500 switches. On the 5500 I have created three VLANs, assigned IP addresses and add the ports I wanted. Now I will assign some ACL's to my VLAN (Not to the ports inside the VLAN). According to the manual very easy.
packet-filter inbound ip-group 3000
System View: return to User View with Ctrl+Z.
 packet-filter vlan 10 inbound ip-group 3000
That's it! But my switch tells me ... Nope .... Unknown command!
Anybody an idea why or knows the rigth command for that?