The ucd/net templates work fine for memory/cpu/load and the normal interfaces as well as SSL tunnels (home users using the openVPN software) show up when you run the SNMP interface query, but the ipSec tunnels that have been established for site to site traffic aren't showing up.
I've previously mapped ipsec tunnels on linux devices and they would show up on an snmpwalk as an interface, but not with the Sophos.
If anyone has time, I'd love some help getting these tunnels mapped for traffic. I'll be glad to even buy you a case of beer for your efforts
Attached is the SNMPwalk from one of the devices.