[SNMP4J] Debugging Agent
Frank Fock
fock at agentpp.com
Tue Mar 21 20:01:53 CET 2006
Hi Oleg,
As you are testing this on Windows, have you installed
a loopback device? If not, you have to register the
agent to 0.0.0.0/161 otherwise you won't receive any
packet.
Best regards,
Frank
Oleg Barenboim wrote:
> Hi Frank,
>
> Tried the following with similar results (-v 1 game similar output).
> Perhaps you have some more debugging suggestions.
>
> FYI, I turned off all the SNMP services in Windows so as to not
> interfere with your software.
>
> Regards,
> Oleg
>
>
> $ snmpwalk --help
> c:\Program Files\HP OpenView\bin\snmpwalk.exe: illegal option -- -
> usage: snmpwalk [options] node [object-id]...
>
> Options:
> -d dump ASN.1 packet trace
> -v version protocol version (1 or 2c)
> -c community community string
> -p port remote port
> -t timeout retransmission timeout (1/10th seconds)
> -r retries maximum retransmission attempts
> -T print the OID in dotted decimal format.
>
> $ snmpwalk -d -v 2c -t 100 -c "public" 127.0.0.1
> Transmitted 34 bytes to barenboim01.evidentsoftware.com (172.31.2.125)
> port 161:
> Initial Timeout: 10.00 seconds
> 0: 30 20 02 01 01 04 06 70 75 62 6c 69 63 a1 13 02
> 0.....public...
> 16: 02 2a 8a 02 01 00 02 01 00 30 07 30 05 06 01 2b
> *.......0.0...+
> 32: 05 00 -- -- -- -- -- -- -- -- -- -- -- -- -- --
> ...............
>
> 0: SNMP MESSAGE (0x30): 32 bytes
> 2: INTEGER VERSION (0x2) 1 bytes: 1 (SNMPv2C)
> 5: OCTET-STR COMMUNITY (0x4) 6 bytes: "public"
> 13: GETNEXT-REQUEST-PDU (0xa1): 19 bytes
> 15: INTEGER REQUEST-ID (0x2) 2 bytes: 10890
> 19: INTEGER ERROR-STATUS (0x2) 1 bytes: noError(0)
> 22: INTEGER ERROR-INDEX (0x2) 1 bytes: 0
> 25: SEQUENCE VARBIND-LIST (0x30): 7 bytes
> 27: SEQUENCE VARBIND (0x30): 5 bytes
> 29: OBJ-ID (0x6) 1 bytes: .1.3
> 32: NULL (0x5) 0 bytes
>
>
> Transmitted 34 bytes to barenboim01.evidentsoftware.com (172.31.2.125)
> port 161:
> Retry #1 Timeout: 20.00 seconds
> 0: 30 20 02 01 01 04 06 70 75 62 6c 69 63 a1 13 02
> 0.....public...
> 16: 02 2a 8a 02 01 00 02 01 00 30 07 30 05 06 01 2b
> *.......0.0...+
> 32: 05 00 -- -- -- -- -- -- -- -- -- -- -- -- -- --
> ...............
>
> 0: SNMP MESSAGE (0x30): 32 bytes
> 2: INTEGER VERSION (0x2) 1 bytes: 1 (SNMPv2C)
> 5: OCTET-STR COMMUNITY (0x4) 6 bytes: "public"
> 13: GETNEXT-REQUEST-PDU (0xa1): 19 bytes
> 15: INTEGER REQUEST-ID (0x2) 2 bytes: 10890
> 19: INTEGER ERROR-STATUS (0x2) 1 bytes: noError(0)
> 22: INTEGER ERROR-INDEX (0x2) 1 bytes: 0
> 25: SEQUENCE VARBIND-LIST (0x30): 7 bytes
> 27: SEQUENCE VARBIND (0x30): 5 bytes
> 29: OBJ-ID (0x6) 1 bytes: .1.3
> 32: NULL (0x5) 0 bytes
>
>
>
> -----Original Message-----
> From: Frank Fock [mailto:fock at agentpp.com]
> Sent: Monday, March 20, 2006 6:10 PM
> To: Oleg Barenboim
> Cc: snmp4j at agentpp.org
> Subject: Re: [SNMP4J] Debugging Agent
>
> Hi Oleg,
>
> Did you specify all necessary parameters for the snmpwalk
> command? I think, SNMP version and security parameters
> (community) are missing. Probably also the correct port.
>
> Best regards,
> Frank
>
> Oleg Barenboim wrote:
>> Hi Frank,
>>
>>
>>
>> I am still plugging away at getting a "Hello World" agent to work. I
>> have liberally sprinkled log messages throughout the code to see where
> I
>> can catch things.
>>
>>
>>
>> When I try to hit it with Net-SNMP's snmpwalk, I get the following:
>>
>>
>>
>> $ snmpwalk 127.0.0.1
>>
>> snmpwalk: No response arrived before timeout.
>>
>>
>>
>> Do you have any ideas for debugging the agent to see if it is
> receiving
>> anything?
>>
>>
>>
>> Thanks in advance,
>>
>> Oleg
>>
>>
>>
>> The (test) agent seems to start on Windows with the following
> messages:
>>
>>
>> Evident Agent - Initializing Transport Mappings
>>
>> DefaultUdpTransportMapping << 127.0.0.1/161
>>
>> DefaultUdpTransportMapping -- DatagramSocket(161,/127.0.0.1);
>>
>> 0 [main] INFO org.snmp4j.agent.BaseAgent - Initializing Message
>> Dispatcher
>>
>> 40 [main] INFO org.snmp4j.agent.BaseAgent - Engine boots is: 12
>>
>> 60 [main] INFO org.snmp4j.agent.BaseAgent - Wrote boot counter: 13
>>
>> 130 [main] DEBUG org.snmp4j.security.Salt - Initialized Salt to
>> db5b34b50fd0c404.
>>
>> Evident Agent - Adding USM User
>>
>> 761 [main] DEBUG org.snmp4j.security.AuthGeneric - SHA-1First digest:
>> 85:84:4e:de:31:ec:6a:d2:30:00:21:be:c1:98:e3:e9:f9:05:42:89
>>
>> 761 [main] DEBUG org.snmp4j.security.AuthGeneric - SHA-1localized
> key:
>> 02:c2:ea:b8:ab:ca:2a:3a:7a:41:55:25:e4:c3:9a:3a:8a:41:80:df
>>
>> 851 [main] DEBUG org.snmp4j.security.AuthGeneric - SHA-1First digest:
>> 8a:be:fa:f6:ee:86:6a:49:70:c9:df:de:80:be:86:b3:23:3c:71:63
>>
>> 851 [main] DEBUG org.snmp4j.security.AuthGeneric - SHA-1localized
> key:
>> 46:ad:2f:60:91:21:54:e1:30:19:b3:ec:9b:86:18:18:1b:6e:44:13
>>
>> 861 [main] DEBUG org.snmp4j.security.UsmUserTable - Adding user
> SHADES
>> =
>>
> UsmUser[secName=SHADES,authProtocol=1.3.6.1.6.3.10.1.1.3,authPassphrase=
> SHADESAuthPassword,privProtocol=1.3.6.1.6.3.10.1.2.2,privPassphrase=SHAD
>> ESPrivPassword,localizationEngineID=null]
>>
>> 1091 [main] DEBUG org.snmp4j.security.AuthGeneric - SHA-1First
> digest:
>> 9f:b5:cc:03:81:49:7b:37:93:52:89:39:ff:78:8d:5d:79:14:52:11
>>
>> 1091 [main] DEBUG org.snmp4j.security.AuthGeneric - SHA-1localized
> key:
>> 91:a5:0f:03:c2:f9:6f:9a:96:dd:ab:d5:84:c6:f9:ba:a7:eb:4b:43
>>
>> 1161 [main] DEBUG org.snmp4j.security.AuthGeneric - SHA-1First
> digest:
>> 9f:b5:cc:03:81:49:7b:37:93:52:89:39:ff:78:8d:5d:79:14:52:11
>>
>> 1161 [main] DEBUG org.snmp4j.security.AuthGeneric - SHA-1localized
> key:
>> 91:a5:0f:03:c2:f9:6f:9a:96:dd:ab:d5:84:c6:f9:ba:a7:eb:4b:43
>>
>> 1161 [main] DEBUG org.snmp4j.security.UsmUserTable - Adding user TEST
> =
> UsmUser[secName=TEST,authProtocol=1.3.6.1.6.3.10.1.1.3,authPassphrase=ma
> plesyrup,privProtocol=1.3.6.1.6.3.10.1.2.2,privPassphrase=maplesyrup,loc
>> alizationEngineID=null]
>>
>> 1231 [main] DEBUG org.snmp4j.security.AuthGeneric - SHA-1First
> digest:
>> df:9b:a9:07:99:14:5b:29:18:9e:88:67:46:19:6d:5c:62:50:19:f1
>>
>> 1512 [main] DEBUG org.snmp4j.security.AuthGeneric - SHA-1localized
> key:
>> de:c0:57:57:b6:33:30:21:d7:82:47:5b:3c:fd:a8:36:17:d6:49:95
>>
>> 1512 [main] DEBUG org.snmp4j.security.UsmUserTable - Adding user SHA
> =
> UsmUser[secName=SHA,authProtocol=1.3.6.1.6.3.10.1.1.3,authPassphrase=SHA
> AuthPassword,privProtocol=null,privPassphrase=null,localizationEngineID=
>> null]
>>
>> Evident Agent - Registering Managed Objects
>>
>> Evident Agent - Creating Static If Table
>>
>> Evident Agent - Adding Views
>>
>> Evident Agent - Adding Notification Targets
>>
>> 1562 [main] INFO org.snmp4j.agent.mo.snmp.NotificationOriginatorImpl
> -
>> Notification 1.3.6.1.6.3.1.1.5.1 issued with []
>>
>> 1562 [main] DEBUG org.snmp4j.agent.mo.snmp.VacmMIB - VACM access
>> requested for context=, securityName=public, securityModel=2,
>> securityLevel=1, viewType=0, OID=1.3.6.1.6.3.1.1.5.1
>>
>> 1562 [main] DEBUG org.snmp4j.agent.mo.snmp.VacmMIB - Matching view
>> found for group name 'v1v2group' is 'fullNotifyView'
>>
>> 1562 [main] DEBUG org.snmp4j.agent.mo.snmp.VacmMIB - Access allowed
> for
>> view 'fullNotifyView' by subtree 1.3 for OID 1.3.6.1.6.3.1.1.5.1
>>
>> 1572 [main] INFO org.snmp4j.MessageDispatcherImpl - Sending PDU
>>
>> 1602 [main] INFO org.snmp4j.MessageDispatcherImpl - Sending Message
> to
>> 127.0.0.1/162
>>
>> 1602 [main] DEBUG org.snmp4j.transport.DefaultUdpTransportMapping -
>> Sending message to 127.0.0.1/162 with length 70:
>>
> 30:44:02:01:01:04:06:70:75:62:6c:69:63:a7:37:02:04:7c:28:40:21:02:01:00:
> 02:01:00:30:29:30:0e:06:08:2b:06:01:02:01:01:03:00:43:02:00:87:30:17:06:
>> 0a:2b:06:01:06:03:01:01:04:01:00:06:09:2b:06:01:06:03:01:01:05:01
>>
>> 1612 [main] INFO org.snmp4j.agent.mo.snmp.NotificationOriginatorImpl
> -
>> Sent notification TRAP[requestID=2083012641, errorStatus=Success(0),
>> errorIndex=0, VBS[1.3.6.1.2.1.1.3.0 = 0:00:01.35;
> 1.3.6.1.6.3.1.1.4.1.0
>> = 1.3.6.1.6.3.1.1.5.1]] to CommunityTarget[address=127.0.0.1/162,
>> version=1, timeout=2000, retries=1, community=public]
>>
>> Evident Agent - Loading Config File
>>
>> 1612 [main] INFO org.snmp4j.agent.BaseAgent - Processing Config File:
>> EvidentAgentConfig.cfg
>>
>> 1612 [main] ERROR org.snmp4j.agent.BaseAgent -
>> java.io.FileNotFoundException: EvidentAgentConfig.cfg (The system
> cannot
>> find the file specified)
>>
>> Evident Agent - Adding Shutdown Hook
>>
>> Evident Agent - Running
>>
>> 1622 [main] INFO org.snmp4j.agent.BaseAgent -
>> Running....Session=org.snmp4j.Snmp at 1cde100
>>
>> 1642 [DefaultUDPTransportMapping_127.0.0.1/161] INFO
>> org.snmp4j.transport.DefaultUdpTransportMapping - UDP receive buffer
>> size for socket 127.0.0.1/161 is set to: 8192
>>
>>
>>
>>
>>
>> _______________________________________________
>> SNMP4J mailing list
>> SNMP4J at agentpp.org
>> http://lists.agentpp.org/mailman/listinfo/snmp4j
>
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