http://www.rfc-editor.org/rfc/rfc2851.txt
RFC 2851: Textual Conventions for Internet Network Addresses, M. Daniele, B. Haberman, S. Routhier, J. Schoenwaelder2000-06-01T23:00:00-00:00This MIB module defines textual conventions to represent commonly used Internet network layer addressing information. [STANDARDS-TRACK]