Based on current generation from XG-Firewalls. Missed some SNMPv2 standard OID's for:
ipAddrTable: 1.3.6.1.2.1.4.20
ipRouteTable: 1.3.6.1.2.1.4.21

Normally this values an standard all over the world on SNMP-Devices, still in Sophos-SG-generation. Generally it's needed by automated creation of routing-plans and more by software solutions.

In the Moment the SNMP-Interface is nice, but not so usefull for production environment's. Secured OID's can be saved by implementing SNMPv3, but this alos not an available option on XG-firewall at the moment.