Re: [Pysnmp-dev] noSuchInstance

[Ilya E. <il...@gl...>]

Could you please send me the repr() of raw response message your script
generates while polling that device. Having smth like:

print repr(rawrsp)

would be a useful hint.

Are you using the same SNMP version (v2c) when polling with AdnentNet
browser?

Also, to rule out a bug in your device code -- try adding '.0' to your OID
e.g. '1.3.6.1.4.1.5655.4.1.6.3.0'.

-ilya

> I am trying to use the pysnmp with the basic operation of GETREQUEST from a
> network device that support SNMP and I responded with "noSuchInstance"
> although this specific OID has value and it can be seen by "AdnentNet" Snmp
> browser, the code I am using is:
>
> from pysnmp import role, v2c, asn1
>
> ######################################################################
> req = v2c.GETREQUEST()
> tr = role.manager(('10.1.12.85', 161))
> (rawrsp, src) = tr.send_and_receive( \
>         req.encode(community='guy', \
>                    encoded_oids=map(asn1.OBJECTID().encode,[
> '1.3.6.1.4.1.5655.4.1.6.3'])))
> rsp = v2c.RESPONSE()
> rsp.decode(rawrsp)
> oids = map(lambda x:x[0], map(asn1.OBJECTID().decode, rsp['encoded_oids']))
> print oids
> vals = map(lambda x: x[0](), map(asn1.decode, rsp['encoded_vals']))
> print map(asn1.decode, rsp['encoded_vals'])
> print vals
>
> ######################################################################
>
> and the output I recieve is:
>
> ###########################################
>
> ['.1.3.6.1.4.1.5655.4.1.6.3']
> [(noSuchInstance(''), '')]
> ['']
>
> ###########################################