Is it possible to use multiple subnets using static routing through a RED10 connected to a UTM backend? I have a RED10 up in manual split mode routing a single subnet just fine, but it doesn't seem to work for additional subnets.
Basically, my network setup is like this:
Local network (RED10):
VLAN1 - 192.168.x.0/24
VLAN2 - 192.168.y.0/24
VLAN3 - 192.168.z.0/24
Remote network (UTM):
VLAN1 - 10.10.a.0/24
Everything works fine for the for VLAN1 to VLAN1 using a static route. I can also see connection attempts coming into the UTM for VLAN2 and VLAN3, but there is no response going back out. The firewall on the UTM is set to allow VLAN1, 2 and 3 (local) to VLAN1 (remote), and VLAN1 (remote) to VLAN1, 2 and 3 (local).
In addition, I have create a masquerading role for VLAN1, 2 and 3 going to a WAN on the UTM (shouldn't matter for my issue).
I am suspicious that the RED10 might only allow one subnet at a time. Can somebody confirm that? Any workaround? I really wish Sophos would make a few more enhancements to the REDs. It's a great concept that many other firewall manufacturers don't offer...
Thank you!
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