Frank: Could you please answer my follow up questions? I may attempt test program today my day time.
Thanks, Parash On Wed, Mar 6, 2013 at 6:50 PM, Hallur,Parashuram <[email protected]>wrote: > Frank: > Thanks again for your response. I'm sorry if I was unclear. > > Let me add little more elaboration. > > 1. With snmp4j-1.0.jar : Application is bind to IPv6 socket address. > In this case trying to send the trap fails with the > java.nio.BufferOverFlowException is thrown. > > 2. With snmp4j-2.0.jar : Application is bind to all machine IP addresses. > Here the application is running/listening on dual stack mode. > In this case I get the "UnknownHostException" while parsing the target > address. > > 3. With snmp4j-2.0.jar : Application is bind to only IPv6 socket address. > The application is running/listening on IPv6 only address > In this case also, I get the "UnknownHostException" while parsing the > target address > > A question about the address parsing > This piece of code works for the application running on Ipv6 only, which > tries to send the trap? > > Address targetAddress = > GenericAddress.parse("udp:<HostName>:<TrapReceiverPort>/162"); > > > I will make an attempt to write test program and let you know how it goes. > > Thanks, > Parash > > > > On Wed, Mar 6, 2013 at 6:35 PM, Frank Fock <[email protected]> wrote: > >> Hi Parash, >> >> The scenario with the three cases you described below does not make any >> sense to me. >> With "the application is bind to an address" you probably mean, the >> SNMP4J listen >> address. If so, this could not relate to the exception of case 1. >> Regarding case 2 and 3, seems to be simply a wrong target address and is >> unrelated to >> the local address SNMP4J is bound too. >> >> I think you should investigate this further and write a small - only >> SNMP4J based application >> that reproduces the error. I do not think that we can get any progress >> otherwise. >> >> Best regards, >> Frank >> >> Am 06.03.2013 09:27, schrieb Hallur,Parashuram: >> >> Reposting the complete thread with currect subject >> ------------------------------------------------------------------------- >> >> Hi Frank: >> >> As I mentioned in my original email, the host is not getting recognized, >> it throws the "UnknownHostException" at the >> InetAddress.getByName("HostName"). The reason is the host name will be sent >> by snmp4j as "localhost:1622" to this underneath api, ideally it should not >> be sent with the trap receiver port. I tried this both for IPv4 and IPv6 >> address application, in both cases I see the same issue with snmp4j-2.0.jar. >> >> My application is configurable to bind to particular address, it can be >> configured to bind to single socket address or multiple socket addresses. >> >> Following are the cases I tried >> 1. With snmp4j-1.0.jar : Application is bind to IPv6 socket address, the >> java.nio.BufferOverFlowException is thrown. >> 2. With snmp4j-2.0.jar : Application is bind to all machine IP addresses. >> "UnknownHostException" while parsing the target address >> 3. With snmp4j-2.0.jar : Application is bind to only IPv6 socket address. >> "UnknownHostException" while parsing the target address >> >> The code used to parse the address is - >> >> Address targetAddress = >> GenericAddress.parse("udp:<HostName>:<TrapReceiverPort>/162"); >> >> Am I missing something here? Appreciate your help very much. Please let >> me know if you need more details. >> >> Thanks, >> Parash >> >> -------- >> >> OK, that'a no problem. So then why do you get an exception? >> >> Am 06.03.2013 01:15, schrieb Hallur,Parashuram: >> >> -------- >> >> Thank you so much for the response Frank. >> >> What do you exactly mean by "trap is bound to IPv6 address"? >> >> This means, the application which is running on IPv6 address is trying to >> send a notification to the trap receiver running on a dual stack IP ( both >> Ipv4 & IPv6 )mode machine. >> >> Thanks, >> Parash >> >> ---------- >> >> Hi Parash, >> >> What do you exactly mean by "trap is bound to IPv6 address"? >> >> (If you tried to set the agentAddress field in a trap/notification with a >> IPv6 address >> you will fail, as SNMP supports IPv4 addresses only for this field. >> >> Best regards, >> Frank >> >> Am 06.03.2013 01:05, schrieb Hallur,Parashuram: >> >> >> >> On Wed, Mar 6, 2013 at 5:39 AM, Hallur,Parashuram >> <[email protected]>wrote: >> >>> Frank or any body else on the forum: >>> >>> Would you please help me with pointers on how to fix this issue? What >>> needs to be done to be able to send the traps from IPv6 application? >>> Thanks for any pointers. >>> >>> Parash >>> >>> >>> On Tue, Mar 5, 2013 at 7:24 AM, Hallur,Parashuram >>> <[email protected]>wrote: >>> >>>> Thanks Frank for the response. Yes the application which is trying >>>> to send the trap is bound to IPv6 address, would you please help me with >>>> how to fix this issue? >>>> >>>> Thanks, >>>> Parash >>>> >>>> >>>> On Mon, Mar 4, 2013 at 11:44 PM, Frank Fock <[email protected]> wrote: >>>> >>>>> Hi, >>>>> >>>>> I think you are trying to sent an IPv6 address as IpAddress BER encoded >>>>> on the wire. This is not possible, because the SNMP standard defines >>>>> IpAddress as IPv4 address and nothing else. >>>>> If this worked with 1.0 then this was an error in 1.0. >>>>> >>>>> Best regards, >>>>> Frank >>>>> >>>>> Am 04.03.2013 12:24, schrieb Hallur,Parashuram: >>>>> >>>>>> Hi, >>>>>> >>>>>> I'm using the following code to create the target address. >>>>>> >>>>>> Address targetAddress = >>>>>> GenericAddress.parse("udp:<HostName>:<TrapReceiverPort>/162"); >>>>>> >>>>>> This goes through fine when I use the snmp4j1.0.jar. However, this >>>>>> particular version seems does not support the IPv6 addresses. For IPv6 >>>>>> requests it throws the java.nio.BufferOverFlowException. >>>>>> java.nio.BufferOverflowException >>>>>> at java.nio.Buffer.nextPutIndex(Unknown Source) >>>>>> at java.nio.HeapByteBuffer.put(Unknown Source) >>>>>> at org.snmp4j.asn1.BEROutputStream.write(BEROutputStream.java:65) >>>>>> at org.snmp4j.asn1.BER.encodeOID(BER.java:437) >>>>>> at org.snmp4j.smi.OID.encodeBER(OID.java:205) >>>>>> at >>>>>> org.snmp4j.smi.VariableBinding.encodeBER(VariableBinding.java:176) >>>>>> at org.snmp4j.PDUv1.encodeBER(PDUv1.java:207) >>>>>> at org.snmp4j.mp.MPv1.prepareOutgoingMessage(MPv1.java:108) >>>>>> at >>>>>> >>>>>> org.snmp4j.MessageDispatcherImpl.sendPdu(MessageDispatcherImpl.java:376) >>>>>> at org.snmp4j.Snmp.sendMessage(Snmp.java:900) >>>>>> at org.snmp4j.Snmp.send(Snmp.java:779) >>>>>> at org.snmp4j.Snmp.send(Snmp.java:771) >>>>>> >>>>>> To fix the above issue, I picked up the latest jars snmp4j2.1.0.jar, >>>>>> snmp4j1.11.3.jar, and snmp4j1.10.jar. All of these throw the unknown >>>>>> host >>>>>> exception. What I notice is that snm4j sends hostname as >>>>>> "hostname:trapreceiverport" to underneath java api to resolve the >>>>>> address, >>>>>> hence the issue unknownhostexception. The same code works with 1.0 >>>>>> version >>>>>> of jar. Are there any difference from now and then? Any help is very >>>>>> much >>>>>> appreciated. >>>>>> >>>>>> Thanks, >>>>>> Parash >>>>>> _______________________________________________ >>>>>> SNMP4J mailing list >>>>>> [email protected] >>>>>> http://lists.agentpp.org/mailman/listinfo/snmp4j >>>>>> >>>>> >>>>> -- >>>>> --- >>>>> AGENT++ >>>>> Maximilian-Kolbe-Str. 10 >>>>> 73257 Koengen, Germany >>>>> https://agentpp.com >>>>> Phone: +49 7024 8688230 >>>>> Fax: +49 7024 8688231 >>>>> >>>>> _______________________________________________ >>>>> SNMP4J mailing list >>>>> [email protected] >>>>> http://lists.agentpp.org/mailman/listinfo/snmp4j >>>>> >>>> >>>> >>> >> >> > _______________________________________________ SNMP4J mailing list [email protected] http://lists.agentpp.org/mailman/listinfo/snmp4j
