<div dir="ltr">Hello,<div><br></div><div>I am trying to connect to a third party SNMP agent, using snmp manager (snmp v3) ( in the erlang 19 release snmp 5.2.3) and I am running into a problem where the agent is returning this error on the manager calling sync_get:</div><div><br></div><div><br></div><div><div>*** [2016:09:08 21:26:00 830] SNMP M-SERVER TRACE ***</div><div> handle_snmp_report -> entry with</div><div> Domain: snmpUDPDomain</div><div> Addr: {{xx,xxx,xxx,xxx},161}</div><div> ReqId: 37078226</div><div> Rep: {invalid_sec_info,[{sec_level,3,1},</div><div> {request_id,37078226,2147483647}]}</div><div> Pdu: {pdu,report,2147483647,noError,0,</div><div> [{varbind,[1,3,6,1,6,3,15,1,1,2,0],'Counter32',33,1}]}</div><div>*** [2016:09:08 21:26:00 830] SNMP M-SERVER DEBUG ***</div><div> handle_snmp_report -> found corresponding request:</div><div> reply to sync request</div><div> Ref: #Ref<0.0.4.210></div><div> ModRef: #Ref<0.0.4.211></div><div> From: {<0.3.0>,#Ref<0.0.4.202>}</div><div>*** [2016:09:08 21:26:00 830] SNMP M-SERVER TRACE ***</div><div> handle_snmp_pdu(get-response) -> Remaining: 4979</div><div>*** [2016:09:08 21:26:00 830] SNMP M-SERVER TRACE ***</div><div> handle_snmp_report -> deliver reply</div><div><br></div><div>{error,{invalid_sec_info,[{sec_level,3,1},{request_id,37078226,2147483647}],{noError,0,[{varbind,[1,3,6,1,6,3,15,1,1,2,0],'Counter32',33,1}]}}}</div><div><br></div><div>*** [2016:09:08 21:26:00 831] </div></div><div><br></div>Where [1,3,6,1,6,3,15,1,1,2,0] maps to "usmStatsNotInTimeWindows" (from <a href="http://www.oid-info.com/">http://www.oid-info.com/</a>)<div><br></div><div>I have attached a wireshark trace for the snmp part of this exchange.</div><div><br></div><div>I am invoking the snmpm module functions through a basic script as follows (using tips from the tutorial at</div><div><a href="https://erlangcentral.org/wiki/index.php?title=SNMP_Quick_Start">https://erlangcentral.org/wiki/index.php?title=SNMP_Quick_Start</a> )<br></div><div>.........</div><div>..........</div><div><pre style="color:rgb(0,0,0)"> ok = application:start(crypto),
ok = application:start(snmp),
Userid = "snmp3user",
Agent_target = "testagent",
Agent_engine_id = [128,0,0,8,2,0,0,26,84,40,108,176],
Agent_ip = {xx,xxx,xxx,xxx},
Agent_port = 161 ,
Secure_name= Userid,
Security_level = 'authPriv',
Security_model = 'usm',
Agent_version = 'v3',
Auth_protocol = 'usmHMACSHAAuthProtocol',
Priv_protocol = 'usmAesCfb128Protocol',
% this is 16 in length
Priv_key_local = snmp:passwd2localized_key(md5, Priv_key , Agent_engine_id),
% this is 20 in length
Auth_key_local = snmp:passwd2localized_key(sha, Auth_key , Agent_engine_id),
ok = snmpm:register_user(Userid,snmpm_user_default,[]), </pre><pre style="color:rgb(0,0,0)"> ok = snmpm:register_usm_user(Agent_engine_id, Userid, [
{auth, Auth_protocol},
{auth_key,Auth_key_local},
{priv, Priv_protocol},
{priv_key,Priv_key_local },
{sec_name, Secure_name}
]),
ok = snmpm:register_agent(Userid, Agent_target ,[
{engine_id,Agent_engine_id},
{address, Agent_ip},
{port, Agent_port},
{version,Agent_version},
{sec_model,Security_model},
{sec_name,Secure_name},
{sec_level, Security_level}</pre><pre style="color:rgb(0,0,0)"> ]),
Res0 = snmpm:sync_get(Userid, Agent_target, [[1,3,6,1,4,1,9,10,19,1,1,9,1,3,7,2]]),
<span style="font-family:arial,sans-serif;color:rgb(34,34,34)"> ........................</span></pre><pre style="color:rgb(0,0,0)"><span style="font-family:arial,sans-serif;color:rgb(34,34,34)"> ........................</span></pre><pre>Can anyone please tell me what I am doing wrong here ? Any tips would be appreciated !<font color="#000000">
</font></pre></div><div><br></div><div><br></div><div>Thanks,<br>Devangana</div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div></div>