I'm need some help to solve a problem for a customer. Their primary Internet connection (from HQ) goes down a lot so they ordered Internet from the local cable company. HQ does not allow the alternate connection so it will be hidden. Here's how I thought I would solve the problem. Will this work?
Create two VLANs for the two ISPs and route between them using the L3 switch (3750). DHCP will have two scopes and will allocate IP addresses on the appropriate network. Each VLAN will need it's own default route to the respective gateway.
How do I set up a different default route for each VLAN?