[AGENT++] Unavailable variables

[Mads Møller Grønfeldt]

Hi,
 
If my agent get a request for a variable that isn't available at the moment( ie. a subsystem is down ), how do I indicate this to the requesting application? I guess I could use SNMP_ERROR_RESOURCE_UNAVAIL, but how do I "return" this as the answer to a get_request?
 
Secondly I am still having trouble adding a row to the snmpTargetAddr table, if I try to add a row using the Mib Explorer, I get Inconsistent value, wrong value, etc. Can someone please give me a walkthrough for dummies on how to add a row to this table, as I obviously doesn't get it?
 
Best regards
Mads