Watchguard template doesn't detect IfDesc

[sjackson0109]

All my 'network Interfaces are labelled $1. This is because the Watchguard Community Template

If I walk
1.3.6.1.2.1.2.2

I get this OID, for an indexed list of interface descriptions:
1.3.6.1.2.1.2.2.1.2

Guessing we might need to do some pre-processing steps; but i don't really know enough about what i'm doing.

Any tips/advice?

I REALLY would like to know which Physical/VLAN/VPN interface name has gone down and not 'device xxx interface $1 offline`. Without the interface label, the template is useless.