I work for a school board. One of our schools has purchased an extra
connection to the internet separate from our main feed into our system.
They still want to use our firewall to protect them. They need to keep
their internet separate but need to be able to access resources on our wan.

I'm new to Bordermanager and Ip routing in general. From what I understand,
routing seems to need to know "where to go" not "where it comes from". If a
request comes from this one school how can it be routed to their internet
connection and then come back into that same connection and back to the
school.

If this is possible, as much detail as possible on setup would be
appreciated.

S. Friske