I've installed a WSUS server on one subnet and I have workstations on another. My UTM is in between the two subnets. A third UTM interface connects to the internet. The workstations are failing to communicate with the WSUS server and the think the problem is some NATting that's going on in the UTM. The workstations show up on the WSUS server, but they all show the external IP of the UTM, rather than the internal IP of the workstations.
I don't have any specific SNAT entries for the workstations.
I do have a SNAT entry from the workstation subnet to IPv4 that uses this exact IP. My understanding is that's only applied to internet bound traffic.
I also have a masquerading rule from Any to the Internet interface. This also uses the same IP.
Any ideas where I've gone wrong?
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