question on HMAC-MD5 in agent++ on Linux

[Frank Fock]

Hi Hongwei,

I think you have to specify the snmpEngineID of your agent
as contextEngineID. RFC 2572 requires that the contextEngineID
is set properly. This was not checked correctly by SNMP++
for all protocols.
The next version will be stricter here.

Best regards,
Frank

Hongwei Li wrote:

>
>
> Hi, Frank,
>
>   Thanks a lot. In MG-soft, I use MD5 as User Profile Name,
> MD5UserAuthPassword as password for MD5 authentication problem,
> no Privacy protocol selected. This is an example in the original
> code. The Security Level is automatically enabled as Authentication.
> The following are the request sent from MG-soft to the agent on Linux:
>
> User profile name: MD5
> Context name: (zero-length)
> Context engine ID: (zero-length)
> Security user name: MD5
> Security engine ID: (zero-length)
> Authentication protocol: HMAC MD5
> Privacy protocol: None
> Security level: Authentication
> Security model: USM
> 1: sysUpTime (null) null
>
> No response comes back from the agent. So, the authentication failed,
> and the MG-soft just hang there.
>
> Do I need to configure something in the agent side on Linux?
>
> Thanks a lot.
>
> Hongwei