i have cisco router 1921 with EHWIC module (8 L2 ports). I've connected Ge0/0 to ISP. And i want to use L2 ports for connecting WLC 2504 and couple of APs (see graphic). But i'm not able to accsess internet on my WLC. Can anybody help with config? ISP provided me with public IP. So my router also has to act as DHCP and provide NAT inside and outside.