We lately migrated our Lan with state of the art switches. 4507 CORES, 3750 DISTRIBUTION,2960G ACCESS. we used vlans which worked perfectly but vlans couldn't see each other till i enabled the ip routing. now i can't offer remote assistance except for my vlan??!! i tried to make an access list in the cores which would allow me to open all ports but still the remote assistance is not applicable. please note that we didn't change any thing in our domain controllers and active directory. PLEASE HELP ME FAST??!!