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List:       opennms-discuss
Subject:    Re: [opennms-discuss] capsd not discovering dns or dhcp
From:       "Ian Mulvihill" <ian.mulvihill () computer ! org>
Date:       2008-01-28 23:56:25
Message-ID: 1201564585.15363.1233769587 () webmail ! messagingengine ! com
[Download RAW message or body]

Hi, Thank you all.

> > DHCP is goofy since it is bootp. There are some options you can try.
> > See:
> > 
> > http://www.opennms.org/documentation/ReleaseNotesUnStable.html
> > 
> > and search for "New DHCP Poller".
> > 
> > -T
> > 
In dhcpd-configuration.xml:
 replaced myIpAddress="127.0.0.1" with myIpAddress=[real address of
 NMS], and started picking up DHCP server.

> > 
DNS is a bit more interesting.  Had found the FAQ about localhost, and
tried looking up other names to no avail.  DNS servers are Lucent's QIP
packaged BIND.  10.10.160.35 is the NMS, 
## Broken scan:  10.10.160.163 is an undetected DNS server.
## tcpdump during a scan gives...
23:43:06.057311 IP 10.10.160.35.47936 > 10.10.160.163.domain:  6+ A?
localhost. (27)
23:43:06.082142 IP 10.10.160.163.domain > 10.10.160.35.47936:  6
ServFail 0/0/0 (27)
23:43:06.085302 IP 10.10.160.35.47936 > 10.10.160.163.domain:  7+ A?
localhost. (27)
23:43:06.109100 IP 10.10.160.163.domain > 10.10.160.35.47936:  7
ServFail 0/0/0 (27)
23:43:06.109448 IP 10.10.160.35.47936 > 10.10.160.163.domain:  8+ A?
localhost. (27)
23:43:06.133930 IP 10.10.160.163.domain > 10.10.160.35.47936:  8
ServFail 0/0/0 (27)

## capsd.log...
2008-01-28 23:43:06,057 DEBUG [Capsd Rescan Pool-fiber1] IfCollector:
10.10.160.163 testing plugin DNS
2008-01-28 23:43:06,082 DEBUG [Capsd Rescan Pool-fiber1] DnsPlugin:
Failed to match response to request, an IOException occured
java.io.IOException: Server failure (2)
        at
        org.opennms.protocols.dns.DNSAddressRequest.decodeFlags(DNSAddressRequest.java:217)
  at
        org.opennms.protocols.dns.DNSAddressRequest.verifyResponse(DNSAddressRequest.java:397)
  at
        org.opennms.netmgt.capsd.plugins.DnsPlugin.isServer(DnsPlugin.java:143)
        at
        org.opennms.netmgt.capsd.plugins.DnsPlugin.isProtocolSupported(DnsPlugin.java:222)
  at
        org.opennms.netmgt.capsd.IfCollector.probe(IfCollector.java:203)
        at
        org.opennms.netmgt.capsd.IfCollector.run(IfCollector.java:359)
        at
        org.opennms.netmgt.capsd.RescanProcessor.run(RescanProcessor.java:2853)
        at
        org.opennms.core.concurrent.RunnableConsumerThreadPool$FiberThreadImpl.run(RunnableConsumerThreadPool.java:422)
  at java.lang.Thread.run(Thread.java:595)
2008-01-28 23:43:06,109 DEBUG [Capsd Rescan Pool-fiber1] DnsPlugin:
Failed to match response to request, an IOException occured
java.io.IOException: Server failure (2)
        at
        org.opennms.protocols.dns.DNSAddressRequest.decodeFlags(DNSAddressRequest.java:217)
  at
        org.opennms.protocols.dns.DNSAddressRequest.verifyResponse(DNSAddressRequest.java:397)
  at
        org.opennms.netmgt.capsd.plugins.DnsPlugin.isServer(DnsPlugin.java:143)
        at
        org.opennms.netmgt.capsd.plugins.DnsPlugin.isProtocolSupported(DnsPlugin.java:222)
  at
        org.opennms.netmgt.capsd.IfCollector.probe(IfCollector.java:203)
        at
        org.opennms.netmgt.capsd.IfCollector.run(IfCollector.java:359)
        at
        org.opennms.netmgt.capsd.RescanProcessor.run(RescanProcessor.java:2853)
        at
        org.opennms.core.concurrent.RunnableConsumerThreadPool$FiberThreadImpl.run(RunnableConsumerThreadPool.java:422)
  at java.lang.Thread.run(Thread.java:595)
2008-01-28 23:43:06,133 DEBUG [Capsd Rescan Pool-fiber1] DnsPlugin:
Failed to match response to request, an IOException occured
java.io.IOException: Server failure (2)
        at
        org.opennms.protocols.dns.DNSAddressRequest.decodeFlags(DNSAddressRequest.java:217)
  at
        org.opennms.protocols.dns.DNSAddressRequest.verifyResponse(DNSAddressRequest.java:397)
  at
        org.opennms.netmgt.capsd.plugins.DnsPlugin.isServer(DnsPlugin.java:143)
        at
        org.opennms.netmgt.capsd.plugins.DnsPlugin.isProtocolSupported(DnsPlugin.java:222)
  at
        org.opennms.netmgt.capsd.IfCollector.probe(IfCollector.java:203)
        at
        org.opennms.netmgt.capsd.IfCollector.run(IfCollector.java:359)
        at
        org.opennms.netmgt.capsd.RescanProcessor.run(RescanProcessor.java:2853)
        at
        org.opennms.core.concurrent.RunnableConsumerThreadPool$FiberThreadImpl.run(RunnableConsumerThreadPool.java:422)
  at java.lang.Thread.run(Thread.java:595)
2008-01-28 23:43:06,134 DEBUG [Capsd Rescan Pool-fiber1] IfCollector:
10.10.160.163 protocol DNS supported? false
2008-01-28 23:43:06,134 DEBUG [Capsd Rescan Pool-fiber1] IfCollector:
10.10.160.163 plugin DNS completed!


## Working scan: 10.200.254.136 is a detected DNS server.
## tcpdump...
23:08:59.659182 IP 10.10.160.35.45573 > 10.200.254.136.domain:  950+ A?
localhost. (27)
23:08:59.670765 IP 10.200.254.136.domain > 10.10.160.35.45573:  950
NXDomain 0/1/0 (102)
23:11:25.801661 IP 10.10.160.35.45961 > 10.200.254.136.domain:  952+ A?
localhost. (27)
23:11:25.813914 IP 10.200.254.136.domain > 10.10.160.35.45961:  952
NXDomain 0/1/0 (102)

## capsd.log
2008-01-28 23:08:59,658 DEBUG [Capsd Rescan Pool-fiber2] IfCollector:
10.200.254.136 testing plugin DNS
2008-01-28 23:08:59,670 DEBUG [Capsd Rescan Pool-fiber2] IfCollector:
10.200.254.136 protocol DNS supported? true
2008-01-28 23:08:59,671 DEBUG [Capsd Rescan Pool-fiber2] IfCollector:
10.200.254.136 plugin DNS completed!


opennms-core-1.3.10-0.8272.snapshot currently installed.  Same result on
a snapshot from cpl wks ago.
Let me know if you need more info.


Thanks again for your help.
Ian
--
ian.mulvihill@nospam.computer.org


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