The value of tNetworkIngIPCritSrcIpPrefixList specifies the IP prefix list used as match criterion for the source ip address. The value specified for this object must correspond to a prefix list defined in tQosPrefixListTable. If the value of this object is empty then the values of the objects tNetworkIngIPCritSrcIpAddr and tNetworkIngIPCritSrcIpMask or tNetworkIngIPCritSrcIpFullMask are used as source ip address match criterion. When this object is set to a non-empty value then the objects tNetworkIngIPCritSrcIpAddr, tNetworkIngIPCritSrcIpMask and tNetworkIngIPCritSrcIpFullMask are reset to their default values by the system. Vice versa, when a new (non-default) value is provided for the objects tNetworkIngIPCritSrcIpAddr and tNetworkIngIPCritSrcIpMask or tNetworkIngIPCritSrcIpFullMask then this object is reset to its default (empty) value by the system. An attempt to set tNetworkIngIPCritSrcIpPrefixList to a non-default value in combination with setting any of tNetworkIngIPCritSrcIpAddr and tNetworkIngIPCritSrcIpMask or tNetworkIngIPCritSrcIpFullMask to (a) non-default value(s) is rejected by the system.