Re: [lwip-devel] Missing things for SNMPv3

[Dirk Ziegelmeier]

Hello Marco,

the work was initially started by Elias Önal. Unfortunately, I never heard of him again.

The current state is that encryption and authentication do work. The agent implements the User-based security model, RFC 3414.

What is missing (what I currently remember, there may be more when carefully reading the RFC) is the implementation of the USM MIB and support for engine time sync (snmpEngineTime) when a client initially contacts the agent. ​I'd guess an experienced developer would need less than one week to implement this.​

​Don't forget the work involved on the application layer, NV storage for snmpEngineBoots and user/password management.​

Dirk

--
Dirk Ziegelmeier * address@hidden * http://www.ziegelmeier.net

On Wed, Aug 17, 2016 at 11:10 AM, Marco Veeneman <address@hidden> wrote:

Hi,

First of all, thank you Dirk for applying a modified version of patch #9044: SNMP response for failed get operation.

I'm currently working on an SNMP enabled device and I was wondering what is missing in SNMP to make the SNMP agent in LwIP SNMPv3 compliant.

I see there already is a reference implementation for mbedTLS. I try to figure out how much effort it would take to get the SNMPv3 agent ready to release in the field.

Marco

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