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:
- NO - This interface is not started automatically.
- YES - This interface is started automatically.
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.
- NA - not applicable for IPv6 interfaces
- Add interface - an add interface request was processed
- Change interface - a change interface request was processed
- Start interface - a start interface request was processed
- End interface - an end interface request was processed
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:
- *IPI - This interface is used by Internet Protocol (IP) over Internetwork Packet Exchange (IPX). Note: As of OS/400 V5R2, IP over IPX is no longer supported.
- *IPS - This interface is used by Internet Protocol (IP) over SNA.
- *LOOPBACK - This is a loopback interface. Processing associated with a loopback interface does not extend to a physical line.
- *VIRTUALIP - The virtual interface is a circuitless interface. It is used in conjunction with the associated local interface (LCLIFC) when adding standard interfaces.
- *OPC - This interface is attached to the optical bus (OptiConnect).
Line Type Type of line used by an interface. The following link protocols are supported:
- Other - One of: IPI - An Internet Protocol (IP) over Internetwork Pack Exchange (IPX) interface. IPS - An Internet Protocol (IP) over SNA interface. PPPoE - Point-to-Point over Ethernet protocol. Note: As of OS/400 V5R2, IP over IPX is no longer supported.
- None - Line is not defined. This is used for the following interfaces: *LOOPBACK, *VIRTUALIP, *OPC. There is no line type value for these interfaces.
- Error - This value is displayed if any system errors other than those for *NOTFND are received while trying to determine the link type for an interface.
- Not_Found - Not found. This value is displayed if the line description object for this interface cannot be found.
- ELAN - Ethernet local area network protocol.
- TRLAN - Token-ring local area network protocol.
- FR - Frame relay network protocol.
- ASYNC - Asynchronous communications protocol.
- PPP - Point-to-point Protocol.
- WLS - Wireless local area network protocol.
- X.25 - X.25 protocol.
- DDI - Distributed Data Interface protocol.
- TDLC - Twinaxial Datalink Control. Used for TCP/IP over Twinax.
- L2TP - Layer Two Tunneling Protocol. (Virtual PPP)
- IPv6_Tunneling - Any kind of IPv6 over IPv4 tunnel.
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:
- NONE - No association has been made between this interface and another local interface.
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.
- Inactive - The interface has not been started. The interface is not active.
- Active - The interface has been started and is running.
- Starting - The system is processing the request to start this interface.
- Ending - The system is processing the request to end this interface.
- RCYPND - An error with the physical line associated with this interface was detected by the system. The line description associated with this interface is in the recovery pending (RCYPND) state.
- RCYCNL - A hardware failure has occurred and the line description associated with this interface is in the recovery canceled (RCYCNL) state.
- Failed - The line description associated with this interface has entered the failed state.
- Failed(TCP) - An error was detected in the IBM TCP/IP Vertical Licensed Internal Code.
- DOD - Point-to-Point Dial-on-Demand.
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:
- Broadcast_capable
- Non-broadcast_capable
- Unnumbered_network
For IPv6 the valid interfaces types are:
- Unicast
- Multicast
- Anycast