1've never had to work on setting up acl's before so i'm looking for some help. i downloaded some info to help me out but a post here couldnt hurt either.

i have a 3com 7758 core switch. (for now, its getting replaced with a cisco nexus this summer). i created a guest wireless vlan on my Meru controllers. all is working great. i'm using the captive portal. my problem is the guest users can browse my network. i'm looking to add acl's to allow these guest networks to only get internet traffic. of course they need dhcp and dns as well from my servers.

i'm totally new to acl's and not sure commands to do this. do i just run these acl's on the port that connects to my Meru controller or just run them on this 7758 and it works by IP?

i would appreciate any help.

thanks
andrew