TCP/IP Logical Interface Attributes

Use the i5/OS TCP/IP interface attributes to monitor the status and details for the logical TCP/IP interfaces, both IPv4 and IPv6 TCP/IP versions. i5/OS TCP/IP interface attributes are sampled attributes in the operational areas of communications and configuration.

Note: TCP/IP must be active on the monitored system; otherwise an error message will be issued.


Automatically Started Indicates whether the interface is started automatically when the TCP/IP stack is activated. Valid entries are as follows:

Change Date The date of the most recent change to this interface in the dynamic tables used by the TCP/IP protocol stack. It is returned as 8 characters in the form YYYYMMDD, where YYYY is the year, MM is the month, and DD is the day.

Change Time The time of the most recent change to this interface in the dynamic tables used by the TCP/IP protocol stack. It is returned as 6 characters in the form HHMMSS, where HH is the hour, MM is the minutes, and SS is the seconds.

Change Status The status of the most recent change to this interface in the dynamic tables used by the TCP/IP protocol stack.

Host Address Host portion of the internet address. It is in dotted decimal notation for IP version 4, as determined by the subnet mask specified for this interface. For IP version 6 it is in address format, as determined by the prefix length configured for this interface. This is an alphanumeric string of up to 48 characters.

Internet Address The internet address, in dotted decimal notation, of the interface. This is an alphanumeric string of up to 48 characters.

Line Description Name of the communications line description that identifies the physical network associated with an interface. This is an alphanumeric string of up to 12 bytes. The following are special values:

Line Type Type of line used by an interface. The following link protocols are supported:

Note: As of i5/OS V5R4, TRLAN, FR, ASYNC, PPP, WLS, X.25, DDI, TDLC, L2TP and IPv6 Tunneling Line values are no longer supported.

Local Interface The internet address, in dotted decimal notation, of the local interface that has been associated with this interface. This is an alphanumeric string of up to 16 characters. The following is a special value:

Network Address Internet address, in dotted decimal notation, of the IP network or subnetwork to which the interface is attached. This is an alphanumeric string of up to 16 characters.

Network Name The complete 24 character name of the network that this interface is a part of. This is an alphanumeric string of up to 24 characters.

ORIGINNODE The host name of the monitored system. Valid entries are alphanumeric strings with a maximum length of 64 characters.

Status Current status of this logical interface.

Subnet Mask The subnet mask for the network, subnet, and host address fields of the internet address, in dotted decimal notation, that defines the subnetwork for an interface. This is an alphanumeric string of up to 16 characters.

Type The valid interface types for IPv4 interfaces are:

For IPv6 the valid interfaces types are: