Hello Friends, I wanted to know whether we could configure mac-address based client-address sets in isa.if not what prevents the configuration in isa. Also i have observed that a squid proxy has this facility (of mac-address based acl) and also that the responses from the squid proxy is very fast compared to isa..even when we have only ONE TEST USER. can anybody advice me please?? thank you PS: I will still remain as passionate as ever for MS-products...it's just that i sometimes debate with my unix collegues often wrt MS products. __________________________________ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com