TCP/IP Tutorial and Technical Overview - IBM Redbooks

Again, the columns above are defined as follows:
Destination The route described by the report.
Gateway The gateway (if any) used to reach this route.
Flags Attributes of the route. Possible values include:
G: The route uses a gateway.
U: The interface over which the route travels is up.
H: Only a single host can be reached through this
route.
D: The route was dynamically created.
M: The route’s table entry was modified by an ICMP
redirect message.
!: The route is a reject route; datagrams will be
dropped.
Refcnt The number of connections using this route.
Interface The interface used by the route.
17.3 RFCs relevant to this chapter
The following RFCs provide detailed information about the management
protocols and architectures presented throughout this chapter:
► RFC 0793 – Transmission Control Protocol (September 1981)
► RFC 1028 – Simple Gateway Monitoring Protocol (November 1987) Historic
► RFC 1052 – IAB recommendations for the development of Internet network
management standards (April 1988)
► RFC 1085 – ISO presentation services on top of TCP/IP based internets
(December 1988)
► RFC 1095 – Common Management Information Services and Protocol over
TCP/IP (CMOT) (April 1989)
► RFC 1155 – Structure and identification of management information for
TCP/IP-based internets (May 1990)
► RFC 1156 – Management Information Base for network management of
TCP/IP-based internets (May 1990)
► RFC 1157 – Simple Network Management Protocol (SNMP) (May 1990)
► RFC 1189 – Common Management Information Services and Protocol for the
Internet (CMOT and CMIP) (October 1990)
Chapter 17. Network management 651