Hi,
sorry for my long e-mail i tried to give a detailed view of my problem
thanks for your understanding.
> Yes - that will always be the case, due to the indexing of the rows.
> The rows of this table are ordered by IP address, so 127.0.0.1 will
> always come before 192.168.2.101 (since 127 < 192)
> If you used a different IP address for your local network,
> such as 10.168.2.101, then this entry would come *before* 127.0.0.1
> (since 10 < 127)
this helped in case of the ipAddrTable
> What SNMP agent are you querying?
i use the net-snmp agent 5.2.1.2
> This doesn't look like the Net-SNMP agent, since we'd typically
> use ifIndex values of 1, 2, 3, etc
but not in my case
> My suspicion is that you're using the standard Microsoft SNMP agent,
> as I seem to recall reading that it uses this form of "base+offset"
> indexing for network interfaces.
> In which case, you'd need to speak to Microsoft about whether/how
> to renumber the interfaces. But I strongly suspect they'll tell
> you it's not possible.
all windows snmp tools are deinstalled.
> What are you actually trying to do?
Well i try to detect the net-snmp agent with the an HP printer management
tool HP Web Jetadmin.
this is the way how it searches for an thrid party printer agent:
1) it sends a sequence of get messages:
Simple Network Management Protocol
Version: 1 (0)
Community: public
PDU type: GET-NEXT (1)
Request Id: 0x00007980
Error Status: NO ERROR (0)
Error Index: 0
Object identifier 1: 1.3.6.1.2.1.1.1 (SNMPv2-MIB::sysDescr)
Value: NULL
Object identifier 2: 1.3.6.1.2.1.1.3 (SNMPv2-MIB::sysUpTime)
Value: NULL
Object identifier 3: 1.3.6.1.2.1.1.5 (SNMPv2-MIB::sysName)
Value: NULL
Object identifier 4: 1.3.6.1.2.1.2.2.1.6 (IF-MIB::ifPhysAddress)
Value: NULL
Object identifier 5: 1.3.6.1.2.1.4.20.1.1 (IP-MIB::ipAdEntAddr)
Value: NULL
Object identifier 6: 1.3.6.1.2.1.25.3.2.1.3
(SNMPv2-SMI::mib-2.25.3.2.1.3)
Value: NULL
Object identifier 7: 1.3.6.1.4.1.11.2.3.9.1.1.7
(SNMPv2-SMI::enterprises.11.2.3.9.1.1.7)
Value: NULL
Object identifier 8: 1.3.6.1.4.1.11.2.3.9.5.1.3
(SNMPv2-SMI::enterprises.11.2.3.9.5.1.3)
Value: NULL
Object identifier 9: 1.3.6.1.4.1.11.2.4.3.8.3.2
(SNMPv2-SMI::enterprises.11.2.4.3.8.3.2)
Value: NULL
Object identifier 10: 1.3.6.1.4.1.11.2.4.3.8.3.3
(SNMPv2-SMI::enterprises.11.2.4.3.8.3.3)
Value: NULL
Object identifier 11: 1.3.6.1.4.1.11.2.4.3.10.7
(SNMPv2-SMI::enterprises.11.2.4.3.10.7)
Value: NULL
Object identifier 12: 1.3.6.1.4.1.11.2.4.3.10.13
(SNMPv2-SMI::enterprises.11.2.4.3.10.13)
Value: NULL
Object identifier 13: 1.3.6.1.4.1.11.2.4.3.13.1
(SNMPv2-SMI::enterprises.11.2.4.3.13.1)
Value: NULL
2 ) then it gets the response from the agent (in this case a brothter
printer)
Simple Network Management Protocol
Version: 1 (0)
Community: public
PDU type: RESPONSE (2)
Request Id: 0x00007980
Error Status: NO ERROR (0)
Error Index: 0
Object identifier 1: 1.3.6.1.2.1.1.1.0 (SNMPv2-MIB::sysDescr.0)
Value: STRING: Brother NC-9100h, Firmware Ver.1.04 (03.11.07),MID
8C5-743
Object identifier 2: 1.3.6.1.2.1.1.3.0 (SNMPv2-MIB::sysUpTime.0)
Value: Timeticks: (310534526) 35 days, 22:35:45.26
Object identifier 3: 1.3.6.1.2.1.1.5.0 (SNMPv2-MIB::sysName.0)
Value: STRING: BSMFC
Object identifier 4: 1.3.6.1.2.1.2.2.1.6.1 (IF-MIB::ifPhysAddress.1)
Value: STRING: 0:80:77:36:9a:47
Object identifier 5: 1.3.6.1.2.1.4.20.1.1.141.99.179.205
(IP-MIB::ipAdEntAddr.141.99.179.205)
Value: IpAddress: 141.99.179.205
Object identifier 6: 1.3.6.1.2.1.25.3.2.1.3.1
(SNMPv2-SMI::mib-2.25.3.2.1.3.1)
Value: STRING: "Brother MFC-8420"
Object identifier 7: 1.3.6.1.4.1.11.2.3.9.1.1.7.0
(SNMPv2-SMI::enterprises.11.2.3.9.1.1.7.0)
Value: STRING: "MANUFACTURER:Brother;COMMAND SET:PJL,HBP,PCL;MODEL:HP
LaserJet 4050 Series;CLASS:PRINTER;COMMENT:The model name HP LaserJet 4050
Series is used only for compatibility information for HP printer"
Object identifier 8: 1.3.6.1.4.1.11.2.4.3.1.2.0
(SNMPv2-SMI::enterprises.11.2.4.3.1.2.0)
Value: STRING: "Vgr/Vkl :100%"
Object identifier 9: 1.3.6.1.4.1.11.2.4.3.8.3.4.0
(SNMPv2-SMI::enterprises.11.2.4.3.8.3.4.0)
Value: INTEGER: 0
Object identifier 10: 1.3.6.1.4.1.11.2.4.3.8.3.4.0
(SNMPv2-SMI::enterprises.11.2.4.3.8.3.4.0)
Value: INTEGER: 0
Object identifier 11: 1.3.6.1.4.1.11.2.4.3.10.7.0
(SNMPv2-SMI::enterprises.11.2.4.3.10.7.0)
Value: Hex-STRING: 00
Object identifier 12: 1.3.6.1.4.1.11.2.4.3.10.13.0
(SNMPv2-SMI::enterprises.11.2.4.3.10.13.0)
Value: ""
Object identifier 13: 1.3.6.1.4.1.11.2.4.3.13.1.0
(SNMPv2-SMI::enterprises.11.2.4.3.13.1.0)
Value: INTEGER: 1
I try to simulate this with the net-snmp agent.
this is the response of the net-snmp agent actually:
Simple Network Management Protocol
Version: 1 (0)
Community: public
PDU type: RESPONSE (2)
Request Id: 0x00007940
Error Status: NO ERROR (0)
Error Index: 0
Object identifier 1: 1.3.6.1.2.1.1.1.0 (SNMPv2-MIB::sysDescr.0)
Value: STRING: HP Laserjet Series 4050
Object identifier 2: 1.3.6.1.2.1.1.3.0 (SNMPv2-MIB::sysUpTime.0)
Value: Timeticks: (233118) 0:38:51.18
Object identifier 3: 1.3.6.1.2.1.1.5.0 (SNMPv2-MIB::sysName.0)
Value: STRING: Laserjet
Object identifier 4: 1.3.6.1.2.1.2.2.1.6.1 (IF-MIB::ifPhysAddress.1)
Value: STRING:
/* here it points to the loopback interface because the management *software
brakes up at ifPhysAddress.2
*
* REQUEST
*
* Simple Network Management Protocol
* Version: 1 (0)
* Community: public
* PDU type: GET (0)
* Request Id: 0x00007941
* Error Status: NO ERROR (0)
* Error Index: 0
* Object identifier 1: 1.3.6.1.2.1.2.2.1.6.2 (IF-MIB::ifPhysAddress.2)
* Value: NULL
*
* RESPONSE from my agent
*
* Simple Network Management Protocol
* Version: 1 (0)
* Community: public
* PDU type: RESPONSE (2)
* Request Id: 0x00007942
* Error Status: NO SUCH NAME (2)
* Error Index: 1
* Object identifier 1: 1.3.6.1.2.1.2.2.1.6.2 (IF-MIB::ifPhysAddress.2)
* Value: NULL
*/
Object identifier 5: 1.3.6.1.2.1.4.20.1.1.127.0.0.1
(IP-MIB::ipAdEntAddr.10.168.2.101)
Value: IpAddress: 10.168.2.101
Object identifier 6: 1.3.6.1.4.1.11.2.3.9.4.2.1.4.1.1.5.0
(SNMPv2-SMI::enterprises.11.2.3.9.4.2.1.4.1.1.5.0)
Value: INTEGER: 2
Object identifier 7: 1.3.6.1.4.1.11.2.3.9.4.2.1.4.1.1.5.0
(SNMPv2-SMI::enterprises.11.2.3.9.4.2.1.4.1.1.5.0)
Value: INTEGER: 2
Object identifier 8: 1.3.6.1.4.1.2021.10.1.1.1 (UCD-SNMP-MIB::laIndex.1)
/* as you can see the values for the enterprise OID come from the UCD-SNMP-
* MIB and not from the Laserjet-Series4050-MIB as i expected
* because i have already compiled the printer-MIB and the LeserJet MIB
*into the agent and set the ENTERPRISE_OID to 11
*/
Value: INTEGER: 1
Object identifier 9: 1.3.6.1.4.1.2021.10.1.1.1 (UCD-SNMP-MIB::laIndex.1)
Value: INTEGER: 1
Object identifier 10: 1.3.6.1.4.1.2021.10.1.1.1
(UCD-SNMP-MIB::laIndex.1)
Value: INTEGER: 1
Object identifier 11: 1.3.6.1.4.1.2021.10.1.1.1
(UCD-SNMP-MIB::laIndex.1)
Value: INTEGER: 1
Object identifier 12: 1.3.6.1.4.1.2021.10.1.1.1
(UCD-SNMP-MIB::laIndex.1)
Value: INTEGER: 1
Object identifier 13: 1.3.6.1.4.1.2021.10.1.1.1
(UCD-SNMP-MIB::laIndex.1)
Value: INTEGER: 1
i have one additional question
- how can i exactly change the enterprise OID to 1.3.6.1.4.1.11 so the
management software can access the Laserjet MIB instead of the UCD-SNMP-MIB
or does this depend on the management software or some other additional
vendor MIBs
with best regards
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