The NSP supports IPv4 or IPv6 communication with external clients, and internally among NSP components, in single- and multiple-interface deployments. The managed NEs can communicate with the NSP using IPv4, IPv6, or both concurrently.

Some restrictions may apply in a multi-interface deployment; see NSP cluster multi-interface configuration for information.

Note: The use of compressed IPv6 addresses, for example, 2001:E7A3::6502:0DA8, is fully supported.

Note: See the NSP Planning Guide for information about an IPv4 interface and an IPv6 interface on the same device.