In Oracle Solaris, the ipadm command replaces ifconfig as the primary means for configuring IP interfaces. It also replaces the ndd command for configuring properties of the following TCP/IP protocols:
Address Resolution Protocol (ARP)
Stream Control Transmission Protocol (SCTP)
Internet Control Messaging Protocol (ICMP)
Upper layer protocols such as TCP and the User Datagram Protocol (UDP)
See the ipadm(8) man page.