diffServMacAceSourceIpAddr — Multiple manufacturers; see the original MIB MIB copies (LibreNMS/Observium Community), Edgecore official enterprise switch MIBs, Edgecore MIB copies (Observium Community)
If the diffServMacAceEtherTypeOp is equal(2), diffServMacAceEtherTypeBitmask is 'FFFF'h, and diffServMacAceMinEtherType is '0800'h, this specified source IP address. The packet's source address is AND-ed with the value of diffServMacAceSourceIpAddrBitmask and then compared against the value of this object.