Not 100% right but close. How to finish this project?

Office 1 was mpls to main site 192.168.6.0/24 gateway is 6.1 Office 2 was vpn to main site 192.168.43.0/24 gateway was 43.10

Ran feed between offices and connected the sites. Each site has an asa and used those switch ports for the feed.

Now both offices are running through the mpls. I had the vendor add a secondary IP to the mpls ont. So the mpls is 192.168.6.1 and 192.168.43.1 (gateways for each office)

The offices can ping each other, which is fine, but I'm worried about dchp bleeding. I need office 2 to remain on it's lan and the same for office 1.

What can I do to ensure this doesn't happen. I'm def not familiar with vlans and I can't re-ip either office easily.

Everything is working and I can see the main office but I don't want DHCP leaking. Any suggestions? I have access to both asas.