The value of the object tlsIgmpSnpgCfgQuerySrcAddress specifies,
together with the value of object tlsIgmpSnpgCfgQuerySrcAddrType,
the source IP address used when generating IGMP queries.
The value of this object is only used when the value of
tlsIgmpSnpgCfgQuerySrcAddrType is 'querySrcAddr (1)'.