If I am using a 1800 series router with two wan interfaces and 8 port 10/100 switch. I know i can setup VLANs on the interfaces. Is it possible to route traffic between the vlans and wan interfaces ?
Yes you can do it. All you need is to configure the switch port in respective vlan and configure ip addr under respective SVI interface. Use the SVI interface address as the default gateway for all the host in ur LAN.