We have a GX440 using an IPSec VPN. We also have IP Filtering (Trusted IPs) applied. In older versions of the firmware, our LAN devices would communicate while the VPN + Filter are applied. Since version 4.4.6 (GX440) and 4.9.002 (GX450) we can no longer see the LAN devices attached to the unit with VPN + IP filter applied. If we remove filtering, we can see the devices again.
I’ve even tried applying the LAN devices to the Trusted IP list and it no longer works.