VLNa Routing

[SeanHaynes]

Morning all - I work for a company that has a few sites up and down the country. We share network resources with our sister companies from within the same group.

At one of our sites one of our sister company has installed their own router linked into their MPLS cloud. I now need to separate their traffic from ours and point it to their routers.

The site uses the HPE 1920G switches which are web based - I have in mind just to VLAN off their traffic. 

There is already a global static route that points to our router, will this prevent their VLAN traffic accessing their routers? Do I need to add anymore static entires?

Many thanks.