[erlang-questions] SNMP manager buggy and/or partialy implemented? (snmp v3 usm problems)

Attila Rajmund Nohl attila.r.nohl@REDACTED
Wed Sep 3 16:16:51 CEST 2014

2014-09-02 12:12 GMT+02:00 Seb Seb <sebovick@REDACTED>:
> Hello,
> After a full week trying to make snmp application working, specially the
> manager, i have noticed these facts:
> - miss key feature for snmp v3 "agentId discovery", the code exist but is
> commented out (???)

I used to work on a product using SNMPv3 (both manager and agent) and
we've implemented agentId discovery. Some of it had to be implemented
in OTP (it was done back in R14B days) and some of it in our product.
A module using the snmpa_discovery_handler had to be implemented and
eventually it worked. As it was done about 5 years ago, my memory
about the details is quite sketchy. Also we abused the SNMP framework
in OTP (e.g. we simulated up to 128 agents in simple agent), so lots
of hack was used.

> - so complicated to configure, that i don't know if there are bugs, or if it
> is me who miss the point (for example, I can successfully run v3 in most
> modes and protocols, but agents (cisco routers) return snmpInASNParseErrs,
> when using auth/sha in conjunction with priv/des while it works perfectly
> with auth/md5 priv/des)

That's a long standing bug, exists at least since OTP R14B02.

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