VLAN and PC GAteway Sanity Check

Just wanted to ask a question for a quick sanity check .... I'm at the point I've over thought it so I'm doubting the basics.

I have a bunch of users (USERS A 10.0.0.x / 24) that connect to a MPLS router ( via a Layer 2+ switch on a default VLAN.
Their default Gateway on the NIC's (Static and DHCP) is set to

I wanted to add another bunch of users (USERS B 10.1.1.x /24) that connect to another VLAN (VLAN 3) on the same switch that are totally independent and go out via another broadband router.

My plan was to leave half the switch (TOP) as default with the MPLS and users connected to these ports with these users still keeping the
same default gateway etc.

Create a new VLAN on the bottom half of the switch (VLAN 3) and connect the users and broadband to the bottom ports and set their
default gateway to the IP Address of the Broadband router ( /24)

Both VLANS would not have any static routes added.

Can you see and problems ?


At a later date change the users from default VLAN to a new VLAN 2
Mongo PeckAsked:
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No problem at all.
Each VLAN has its own default gateway, and are unable to communicate with each other (as long as you don't create interface VLAN on switch (in the case ip routing is enabled on switch)  for new VLAN). If that's what you want, that's it.

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