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Need some help with a newly setup RED

QMW_Brad
So i've just set up a new UTM & RED and they have synced and are connected.  The internet is working fine but I need to be able to add users on the RED network to the domain where the UTM is at Head office.

On the RED network I can only ping as far as the Internal UTM interface.

I've followed the RED setup guide and I believe that is setup as it should be.

So how do I get my RED network 192.168.4.0 to talk to my 192.168.7.0 and vice versa?

Thanks!


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  • 0
    Red Setup only goes as far as the red itself. You still have to manually add rules and so forth permitting traffic bewteen subnets.
  • 0
    Hi Drew thanks for your reply.  I understand that after doing some more reading, but what is required to get the two subnets talking?
  • 0
    Both subnets need to point to the UTM as default gateway (or at least know that the subnets are reacheable through the UTM).
    Then on the UTM you need te make a firewall rule:

    RED network => any => Internal    ALLOW
    Internal => any => RED network    ALLOW

    Or you could be more restrictive and not use ANY but only the ports/services really needed.

    Managing several Sophos firewalls both at work and at some home locations, dedicated to continuously improve IT-security and feeling well helping others with their IT-security challenges.

  • 0
    To clarify one point, The subnets behind the RED have to point to the RED as their default gateway or, if you use another router as the default gateway, you need to update the gateway's routing table to reflect the networks on the UTM side of the RED tunnel.
  • 0
    Moved this thread to the RED forum.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
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