T01IPnnn - Internet Layer Messages

This chapter describes the messages issued by the Internet layer (IP, ICMP) routine. These include messages T01IP001 through T01IP999.

T01IPnnn

T01IP001D

Protocol number not supported, protocol = proto

Explanation    An IP datagram arrived for protocol proto, which is not found in the RAW IP protocol table.

Recommended Action    Determine if the protocol number should be supported. If so, examine the supporting application for problems.

T01IP002D

UDP port number not supported, port = port_num from remoteIP:rport.

Explanation    A UDP datagram arrived that is not found in the UDP Port table.

Syntax Description

port_num	Port from which unfound UDP datagram arrived.
rport	Remote port.
remoteIP	IP address of remote host.

Recommended Action    Determine if the port number should be supported. If so, examine the supporting application for problems.

T01IP003E

TCP port number not supported, port = port_num from remoteIP:rport.

Explanation    A TCP datagram arrived that is not found in the TCP Port table.

Syntax Description

port_num	Port from which unfound TCP datagram arrived.
rport	Remote port.
remoteIP	IP address of remote host.

Recommended Action    Determine if the port number should be supported. If so, examine the supporting application for problems.

T01IP010E

ICMP checksum error From remoteIP.

Explanation    An ICMP datagram arrived with a checksum error. The remote host IP address is represented by remoteIP.

Recommended Action    Examine the remote host for problems.

T01IP011E

ICMP message too short ( numb ), from remoteip.

Explanation    An ICMP datagram arrived that is too short. The length is represented by num: the remote host IP address is represented by remoteIP.

Recommended Action    Examine the remote host for problems.

T01IP012D

ICMP message session not found, from remoteIP.

Explanation    An ICMP datagram arrived for which the corresponding endpoint cannot be found. The remote host IP address is represented by remoteIP.

Recommended Action    Examine the remote host for problems.

T01IP013I

proto session lport,rport localIP,remoteIP rerouted from oldgwIP to newgwIP.

Explanation    an ICMP datagram arrived that resulted in re-routing a session.

Syntax Description

proto	Protocol number of the session.
lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.
oldgwIP	Old gateway IP address
newgwIP	New gateway IP address.

Recommended Action    Examine the network for routing problems.

T01IP014E

proto session lport,rport localip,remoteip, destination unreachable and     unable to reroute.

Explanation    An ICMP datagram arrived which indicated the destination was unreachable.

Syntax Description

proto	Protocol number of the session.
lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.

Recommended Action    The protocol of the session is represented by proto; local and remote port numbers are represented by lport and rport; local and remote IP addresses are represented by localIP and remoteIP. Examine the network for routing problems.

T01IP015T

ICMP type received for protocol proto, lport,rport localIP,remoteIP from senderIP.

Explanation    An ICMP datagram arrived.

Syntax Description

type	Type of ICMP datagram that arrived.
proto	Protocol number of the header.
lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.
senderIP	Sender IP address.

Recommended Action    Examine the network for routing problems.

T01IP016E

proto session lport,rport localIP,remoteIP, time-to-live exceeded from senderIP.

Explanation    An ICMP datagram arrived indicating the IP time-to-live field was exceeded.

Syntax Description

proto	Protocol number of the session.
lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.
senderIP	Sender IP address.

Recommended Action    Examine the network for routing problems. Possibly increase the default time-to-live.

T01IP017I

Redirect received for destIP, to newrouterIP, from oldrouterIP.

Explanation    An ICMP arrived specifying a redirect.

Syntax Description

destIP	IP address of destination gateway.
newrouterIP	IP address of new gateway
oldrouterIP	IP address of sending gateway.

T01IP018E

ICMP parm problem xxx received for localIP, to remoteIP, from senderIP.

Explanation    An ICMP datagram arrived specifying a parameter problem.

Syntax Description

xxx	Offset into the datagram in error.
localIP	Source address of the datagram in error.
remoteIP	Destination address of the datagram in error.
senderIP	Sending host IP address.

Recommended Action    Correct the field in error.

T01IP019E

ICMP type in error. from senderIP.

Explanation    An ICMP datagram arrived which was in error. The type of the ICMP datagram in error is represented by type; the IP address of the sending host is represented by senderIP.

Recommended Action    Examine the remote host to correct the field in error.

T01IP030E

Time to live exceeded on forwarded datagram. from localIP to remoteIP.

Explanation    A datagram arrived which was to be forwarded through Cisco IOS for S/390 with a time-to-live field of zero or one. The source and destination host IP addresses are represented by localIP and remoteIP.

Recommended Action    Examine the remote host to increase its time-to-live field.

T01IP031E

proto datagram lport,rport localIP,remoteIP, Unable To Route To Destination.

Explanation    A datagram arrived which was to be forwarded but a route could not be obtained.

Syntax Description

proto	Protocol number of the session.
lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.

Recommended Action    Examine the network for routing problems.

T01IP032I

Redirect sent to localIP, for remoteIP, new router newrouterIP.

Explanation    A datagram arrived which was to be forwarded and the route was for the same subnet.

Syntax Description

localIP	Source IP address.
remoteIP	Destination IP address.
newrouterIP	Gateway described in the redirect.

Recommended Action    Examine the network for routing problems.

T01IP040T

proto datagram lport,rport localIP,remoteIP, unable to forward to destination.

Explanation    A datagram arrived which was to be forwarded but forwarding has been disabled.

Syntax Description

proto	Protocol number of the session.
lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.

Recommended Action    Examine the network for routing problems.

T01IP041D

proto datagram lport,rport localIP,remoteIP, protocol not supported.

Explanation    A datagram arrived specifying a protocol which is not supported (no endpoint found).

Syntax Description

proto	Protocol number of the session.
lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.

Recommended Action    Examine the application which supports this protocol.

T01IP042D

UDP datagram lport,rport localIP,remoteIP, port not found.

Explanation    A UDP datagram arrived for a port which had no session.

Syntax Description

lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.

Recommended Action    Examine the application which supports this port.

T01IP043I

TCP datagram lport,rport localIP,remoteIP session not found.

Explanation    A TCP datagram arrived for which no session could be found.

Syntax Description

lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.

Recommended Action    Examine the application which supports this port.

T01IP044E

IP checksum error from remoteIP.

Explanation    An IP datagram arrived with a checksum error. The remote host IP address is represented by remoteIP.

Recommended Action    Examine the remote host for problems.

T01IP045E

IP datagram truncated for proto, IPid, lport,rport localIP,remoteIP.

Explanation    An IP datagram was received whose header indicated a length exceeding the size of the packet. Part of the data portion is apparently lost. The datagram is discarded.

Syntax Description

proto	Protocol number.
IPid	IP identifier number.
lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.

Recommended Action    Examine the remote host.

T01IP046E

IP datagram too short for proto, IPid, lport,rport localIP,remoteIP.

Explanation    An IP datagram was received whose length would not hold a complete IP header. The datagram was truncated by the network or badly formed by the remote host. The datagram is discarded.

Syntax Description

proto	Protocol number.
IPid	IP identifier number.
lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.

Recommended Action    Examine the remote host.

T01IP047E

IP datagram reassembly error for proto, IPid, lport,rport localIP,remoteIP.

Explanation    An IP datagram was received whose reassembly offset value would cause the total datagram length to exceed 65535, the maximum size for an IP datagram. The datagram is discarded.

Syntax Description

proto	Protocol number.
IPid	IP identifier number.
lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.

Recommended Action    Examine the remote host.

T01IP048E

IP datagram resource shortage for type, lport,rport localIP,remoteIP.

Explanation    An IP datagram was received which could not be processed due to a shortage of internal resources. The datagram is discarded.

Syntax Description

type	Resource type.
lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.

Recommended Action    Examine the resource type. It may be necessary to expand the buffer pool(s) with the POOLDEF statement in the TCPCFGxx configuration member, or it may be necessary to increase the region size for the Cisco IOS for S/390 region.

T01IP049E

IP datagram invalid source route for proto, IPid, lport,rport localIP,remoteIP

Explanation    An IP datagram was received whose IP header contained an invalid source route option. The datagram is discarded.

Syntax Description

proto	Protocol number of the session.
IPid	IP identifier number.
lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.

Recommended Action    Examine the remote host.

T01IP050I

IP datagram reassembly timeout for proto, IPid, lport,rport localIP,remoteIP.

Explanation    A datagram timed out during reassembly.

Syntax Description

proto	Protocol number.
IPid	IP identifier number.
lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.

Recommended Action    Examine the network for dropped packets.

T01IP051E

IP output no LNI segment for proto, IPid, localIP:lport remoteIP:rport.

Explanation    IP is attempting to build an IP header for a datagram, but found errors in the options passed from the higher layer.

Syntax Description

proto	Protocol number.
IPid	IP identifier number.
localIP	Source IP address.
lport	Source port number.
remoteIP	Destination IP address.
rport	Destination port number.

Recommended Action    This may indicate an internal error. Save all output and contact Customer Support.

T01IP052D

IP datagram follows:

Explanation    An error was encountered in an inbound IP datagram. The datagram is dumped following the message.

Recommended Action    This diagnostic message is preceded by an error or warning message. Follow the action for that message.

T01IP053E

IP output header will not fit for proto, IPid, localIP:lport remoteIP:rport.

T01IP054E

IP output options will not fit for proto, IPid, locapIP:lport remoteIP:rport.

T01IP055E

IP output bad source route list for proto, IPid, locapIP:lport remoteIP:rport.

T01IP056E

IP output option length is zero for proto, IPid, locapIP:lport remoteIP:rport.

Explanation    IP is attempting to build an IP header for a datagram, but found an error in the data or options passed from the higher layer.

Syntax Description

proto	Protocol number.
IPid	IP identifier number.
localIP	Source IP address.
lport	Source port number.
remoteIP	Destination IP address.
rport	Destination port number.

Recommended Action    This may indicate an internal error. Save all output and contact Customer Support.

T01IP057E

IP output MBUF shortage for proto, IPid, locapIP:lport remoteIP:rport.

Explanation    IP is unable to obtain MBUF storage to construct an output IP datagram.

Syntax Description

proto	Protocol number.
IPid	IP identifier number.
localIP	Source IP address.
lport	Source port number.
remoteIP	Destination IP address.
rport	Destination port number.

Recommended Action    Check the logs for other evidence of a storage shortage. It may be necessary to increase the region size for the TCP/IP job.

T01IP060W

IP host unreachable for proto, IPid, lport,rport localIP,remoteIP.

Explanation    A datagram could not be delivered by an LNI. ARP Timeout is the probable cause.

Syntax Description

proto	Protocol number.
IPid	IP identifier number.
lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.

Recommended Action    Examine the remote host.

T01IP070W

ICMP datagram lport,rport localIP,remoteIP, unable to route.

Explanation    An ICMP datagram was sent for which a route could not be obtained.

Syntax Description

lport	Source port number.
rport	Destination port number.
localIP	Source IP address.
remoteIP	Destination IP address.

Recommended Action    Examine the network for routing problems.

T01IP071E

IP header follows: hex_dump_format

Explanation    This message contains a dump of an input IP datagram header. It follows another IP error message, such as T01IP010E, T01IP011E, T01IP018E, or T01IP019E.

Recommended Action    See the accompanying error message description for appropriate action.