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6
6-21
GFK-1004B
Chapter 6 Troubleshooting
Table 6-10. Exception Log Event Codes - Continued
Log Event
Code Possible Cause and Resolution
Event “11”
IP events
This event is logged by the Internet Protocol (IP) layer.
Entry 3 of any IP exception is a code uniquely identifying the software component
of IP which reported the exception.
Entry 2 identifies the type of error:
1 “Config’d gateway addr bad; can’t talk off local net”
Configured default gateway address does not have same network ID as the
Interface’s IP address. During initialization, the netid part of the “Gateway
Address” (configured for this station) was found to be different from the netid
part of the “IP Address” (configured for this station). Since the gateway must
be on the same local network as this station, there is an error in configuration;
this error must be corrected using the Logicmaster 90 Configurator or (if
LM90 Config Mode is “MMS-Ethernet”) the GSM.
How to determine the netid: When a Subnet Mask is configured, the station’s
netid is found by ANDing the Subnet Mask with the IP Address. Likewise,
the gateway’s netid is found by ANDing the Subnet Mask with the Gateway
Address. When a Subnet Mask has not been configured (equals 0.0.0.0), the
netid of the station and netid of the gateway are determined by the address
class. For further information on IP addressing, see Appendix G of GFK-1084.
2 “Config’d gateway addr bad; can’t talk off local net”
An outgoing IP datagram was addressed to a host that is not on the local
network, and a default gateway is not defined. 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.
The user should verify that the IP address of the remote host is correct. If
correct, then the Gateway Address must be configured using the Logicmaster
90 Configurator or (if LM90 Config Mode is “MMS-Ethernet”) the GSM.
Refer to Appendix G of GFK-1084 for more information on IP addressing.
3 “LAN system-software fault; resuming”
Internal error: An IP request to send an ICMP Destination Unreachable
message failed. Entry 4 indicates 3, the code for a Destination Unreachable
ICMP message. Entries 5 & 6 contain the IP address bytes of the node to
which the ICMP message would have been sent displayed as two
hexadecimal words. For example, 3.0.0.1 would be shown as 0300H 0001H.
4 “LAN system-software fault; resuming”
Internal error: An attempt to set a timer with STIMreq failed. Entry 4 contains
the time interval requested.
5 “Local request to send was rejected; discarded request”
An attempt to send an Ethernet frame with EDATreq failed. Possible Ethernet
cable problems. Check that the LAN LED is ON or Blinking. Entry 4 contains
the value used for the Ethernet protocol type field.