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6-26 TCP/IP Ethernet Communications User’s Manual – January 1996
GFK-1004B
Table 6-10. Exception Log Event Codes - Continued
Log Event
Code Possible Cause and Resolution
Event “18”
ICMP events
Entry 3 of any Internet Control Message Protocol (ICMP) exception is a code
uniquely identifying the software component of ICMP which reported the excep-
tion.
Entry 2 (hexadecimal) codes are as follows:
2 “Can’t locate remote node; discarded request”
A remote IP entity returned a “Destination Unreachable ICMP message.” It
was unable to route the message to the destination. Entry 4 indicates the
ICMP message code field value present in the message. (See an ICMP
reference document for a description of field code values.) Entries 5 & 6
contain the IP address bytes of the unreachable destination displayed as two
hexadecimal words. For example, 3.0.0.1 would be shown as 0300H 0001H.
Verify that the local and remote nodes are both connected and that both
applications are specifying proper IP addresses.
6 “Local request to send was rejected; discarded request”
A call to icmp_out failed. Possible Ethernet cable problems. Check that the
LAN LED is ON or Blinking. Entry 4 contains a message type code for Echo
Response (0). Entries 5 & 6 contain the IP address bytes of the node to which
we are responding displayed as two hexadecimal words. For example, 3.0.0.1
would be shown as 0300H 0001H.
8 “LAN data memor y exhausted-check par ms; resuming”
A call to BuffAlloc failed.
9 “Local request to send was rejected; discarded request”
Internal error: An attempt to send an IP datagram with ipsend failed. Possible
Ethernet cable problems. Check that the LAN LED is ON or Blinking. Entry
4 contains the length of the datagram. Entries 5 & 6 contain the IP address
bytes of the destination IP address of the datagram displayed as two
hexadecimal words. For example, 3.0.0.1 would be shown as 0300H 0001H.