Interpreting Error Message

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1. Unknown Host

2. Unreachable Host

3. Not a Switch

4. Not a Router

5. MAC not available in cache

6. No response to SNMP queries

7. Specified OID not implemented

8. Unable to perform SNMP Set

9. Community with read/write permission required

10. Not able to retrieve complete data from the MIB

11. Not able to retrieve MAC Address of the Switch

12. Not a Table OID

13. Operation Timed Out

14. Not a CISCO Router

15. Wrong CLI Authentication Parameters

16. Not a Cisco Device

17. No Access Lists Available

18. Unrecognised OID

19. Invalid OID

20. Unable to bind to Port

21. Old Password is incorrect

22. Unable to send mail

23. User already exists

24. TCP Reset tool supports only switches and routers

25. No TCP connection established in the device

26. Could not reset the connection

27. Not a DHCP server

28. DHCP Scope Monitor only supports windows NT and 2000 DHCP servers

29. The DHCP server already exist in the list

30. The Community already exist in the list

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Unknown Host

Message Summary

The IP Address or the Host Name does not exist in the network

Cause

1. Failure in ping action and DNS service ( i.e. the DNS Server could not resolve the IP Address or the Host Name specified)

Unreachable Host

Message Summary

The IP Address or the Host Name is not alive in the network.

Cause

1. The IP Address or the Host Name specified is switched off.

2. The IP Address or the Host Name specified is behind a Firewall.

Not a Switch

Message Summary

The referred IP Address or the Host Name is not a Switch.

Not a Router

Message Summary

The Router name specified is not that of a Router.

Cause

1. The input is not a switch.

Note: If the router has the OID .1.3.6.1.2.1.4.1 and  "ip forwarding" set to "true(1)"  the device is considered as a  router.

MAC not available in cache

Message Summary

The MAC Address entered is not available in the OpUtils server cache.

No Response to SNMP Queries

Message Summary

The IP Address or the Host Name is not SNMP enabled.

Cause

1. The IP Address or the Host Name specified is not an SNMP device

2. The  IP Address or the Host Name specified does not respond using the SNMP parameters available under SNMP Settings.

Action:

1.  To install SNMP read the section Installing SNMP.

2. To change SNMP Settings click My Home-> Settings-> SNMP.

Specified OID is not Implemented

Message Summary

The required OID is not implemented by the SNMP agent running in the device specified.

Unable to perform SNMP SET

Message Summary

The Server is not able to perform the SNMP SET operations on the specified host.

Cause

1. Unable to set the input parameters on the Target Host Name due to

2. invalid input parameters or

3. network traffic

Action:

1. To change SNMP Settings click My Home-> Settings-> SNMP.

Community with read/write permission required

Message Summary

The entered community string does not have the Write permission to perform the SET operation on the target host.

Not able to retrieve complete data from the MIB

Message Summary

The required information could not be retrieved from the MIB implemented in the input device.  

Not able to retrieve MAC Address of the Switch

Message Summary

The MAC Address of the given switch cannot be retrieved from the MIB through SNMP. Mapping the switch ports will not be possible without the MAC Address of the switch. 

Not a Table OID

Message Summary

When the specified OID is not a Table OID. Specify a valid table OID or browse to select a table OID of a MIB.

Operation Timed Out

Message Summary

Server wait time period (Server Timeout value)  to get the response or result from the target host has expired.

Not a CISCO Router

Message Summary

The Router specified does not belong to the CISCO Router series.

Wrong CLI Authentication Parameters

Message Summary

Unable to login to the Router with the given CLI parameters

Cause

1. CLI system prompt or the password prompt or the password specified for CLI authentication is incorrect.

Action :

To change CLI password prompt or the system prompt click My Home-> Settings-> CLI

Not a Cisco Device

The input device is not a Cisco device.

No Access Lists Available

No access lists available for the given Cisco device.

Cause

1. No data is available for the device being queried.

Action :

Check whether the input device is a Cisco device.

Unrecognised OID

Message Summary

The OID does not exist in any of the loaded MIBs.

Cause

1. The OID does not exist either in the MIBs bundled with OpUtils or in the MIB's database.

Invalid OID

Message Summary

The  OID specified is not valid.

Cause :

1. The Syntax is a displaystring OR

2. The OID Type is of type table or table entry OR

3. The OID Type is scalar and if the index value specified is not 0.

Note: The above error message occurs only for SNMP Graph Tool, as the OID specified cannot be plotted in a graph.

Unable to bind to Port

The message appears for the following tools

1. Trap Receiver

2. Config File Viewer

3. SNMP Trap Settings

Trap Receiver

The message appears

1. If OpUtils is not started as root AND the Port specified for receiving traps is less than 1024 (in Linux)

2. The port is already occupied

Action : To start Trap Service  in port less than 1024, start OpUtils as root. Or else start Trap Service in port greater than 1024. To re-configure trap settings login as admin and click My Home->SNMP Trap Settings and change the Port number.

Config File Viewer

The message appears if OpUtils is not started as root or when port 69 is occupied. (TFTP Service is started by Oputils in Port 69)

Action : Start OpUtils as root or free the port

SNMP Trap Settings

The message appears if

1. If OpUtils is not started as root AND the Port specified for receiving traps is less than 1024 (in Linux)

Old Password is incorrect

Message Summary

The Password entered in the "Old Password" field is incorrect.

Action : Enter the password correctly.

Unable to send mail

Message Summary

Unable to send mail to the intended recipient.

Cause

1. The SMTP Server settings are incorrectly set.

2. The sender's email id is entered incorrectly.

Action

1. Click Admin -> Settings and choose SMTP. Recheck if the SMTP Service is running in the Port specified.

2. Check the sender's email id.

User already exists

Message Summary

The user specified already exists.

Action

1. Check the list of users displayed in the Admin -> User Management page.

2. Enter user name and password correctly.

TCP Reset tool supports only switches and routers

Message Summary

The input device in the TCP Reset tool can only be switches or routers.

Action: Specify a switch or a router as a input.

No TCP connection established in the device

Message Summary

The input device do not have any TCP connections currently established.

Could not reset the connection

Message Summary

The TCP connection could not be reset.

Cause: The given SNMP write community is incorrect.

Action: Specify the correct write community of the device.

Not a DHCP server

Message Summary

The input device is not a DHCP Server.

Action: Specify a DHCP Server to monitor its scopes.

DHCP Scope Monitor only supports windows NT and 2000 DHCP servers

Message Summary

The DHCP Scope Monitor tool can only be used to monitor the scopes of Windows NT and 2000 DHCP Servers.

The DHCP server already exist in the list

Message Summary

The specified device is already added.

The Community already exist in the list

Message Summary

The SNMP community string specified is already available in the lits of communities.