AgentX: subAgent does not respond to master agent

permalink · #1 (**permalink**) 02-21-2006

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Hi,
=20
I started snmpd as the master agent with agentxsocket set as udp:705. In =
my subagent embeded in another application runing at the same linux box, =
I set the same. When I start the subagent, I can see that they =
communicate to each other. Handlers for some enterprise MIB OID's are =
registered. For example the subagent print out:
=20
agentx/subagent: registering: iso.3.6.1.4.1.6393.5.1.3.2.1.1.2
agentx_build: packet built okay
agentx/subagent: synching input, op 0x01
agentx/subagent: registered

and on the other hand, the masterAgent(snmpd) print out:=20
=20
agentx/master: handle pdu (req=3D0x1c472f35,trans=3D0x0,sess=3D0x4)
agentx/master: in register_agentx_list
agentx/master: registered ok
agentx/master: send response, stat 0 =
(req=3D0x1c472f35,trans=3D0x0,sess=3D0x4)
agentx_build: packet built okay

However when I try snmp get, the master agent received correct =
information and trying to pass it to the subagent, but the subagent does =
not respond. This is what printed by the master agent:
=20
Received SNMP packet(s) from UDP: [192.168.1.126]:3629
GET message
-- iso.3.6.1.4.1.6393.5.1.3.2.1.1.2.0
agentx/master: agentx master handler starting, mode =3D 0xa0
agentx/master: request for variable (iso.3.6.1.4.1.6393.5.1.3.2.1.1.2.0)
agentx: sending pdu (req=3D0xd,trans=3D0xc,sess=3D0x4)
agentx_build: packet built okay

Nothing print out by the SubAgent with "agentx" token turned on, as if =
the request is not reach the subAgent. Ping message between the master =
and Subagent seems working.
=20
=20

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<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
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<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D194310004-21022006>Hi,</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D194310004-21022006></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D194310004-21022006>I =
started snmpd as=20
the master agent with agentxsocket set as udp:705. In my subagent =
embeded in=20
another application runing at the same linux box, I set the same. When I =
start=20
the subagent, I can see that they communicate to each other. Handlers =
for some=20
enterprise MIB OID's are registered. For example the subagent print=20
out:</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D194310004-21022006></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN =
class=3D194310004-21022006>agentx/subagent:=20
registering: iso.3.6.1.4.1.6393.5.1.3.2.1.1.2<BR>agentx_build: packet =
built=20
okay<BR>agentx/subagent: synching input, op 0x01<BR>agentx/subagent:=20
registered<BR></SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D194310004-21022006>and on =
the other=20
hand, the masterAgent(snmpd) print out: </DIV></SPAN></FONT>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D194310004-21022006></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN =
class=3D194310004-21022006>agentx/master:=20
handle pdu (req=3D0x1c472f35,trans=3D0x0,sess=3D0x4)<BR>agent x/master: =
in=20
register_agentx_list<BR>agentx/master: registered ok<BR>agentx/master: =
send=20
response, stat 0 =
(req=3D0x1c472f35,trans=3D0x0,sess=3D0x4)<BR>agent x_build: packet=20
built okay<BR></SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN =
class=3D194310004-21022006>However when I try=20
snmp get, the master agent received correct information and trying to =
pass it to=20
the subagent, but the subagent does not respond. This is what printed by =
the=20
master agent:</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D194310004-21022006></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN =
class=3D194310004-21022006>Received SNMP=20
packet(s) from UDP: [192.168.1.126]:3629<BR>  GET=20
message<BR>    --=20
iso.3.6.1.4.1.6393.5.1.3.2.1.1.2.0<BR>agentx/master: agentx master =
handler=20
starting, mode =3D 0xa0<BR>agentx/master: request for variable=20
(iso.3.6.1.4.1.6393.5.1.3.2.1.1.2.0)<BR>agentx: sending pdu=20
(req=3D0xd,trans=3D0xc,sess=3D0x4)<BR>agentx_build : packet built=20
okay<BR></DIV></SPAN></FONT>
<DIV><FONT face=3DArial size=3D2><SPAN =
class=3D194310004-21022006>Nothing print out by=20
the SubAgent with "agentx" token turned on, as if the request is not =
reach the=20
subAgent. Ping message between the master and Subagent seems=20
working.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D194310004-21022006></SPAN></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D194310004-21022006> </DIV></SPAN></FONT></BODY></HTML>

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