[AGENT++] snmp v1 community

[Jochen Katz]

Hi,

> I don't understand this source code of agent.cpp:
> 
>         vacm->addNewGroup(SecurityModel_v2, "public",
>                          "v1v2group", storageType_volatile);
>         vacm->addNewGroup(SecurityModel_v1, "public",
>                          "v1v2group", storageType_volatile);
> 
> Is SecurityModel_v2 any different from SecurityModel_v1?

yes SNMPv1 and SNMPv2 are different things, but...

> Doesn't v1 and v2c share the same communities?

... the code above just states that both, v1 and v2c community "public"
are mapped to VACM group "v1v2group".

> Another question: how to have a write community string that is
> different from the read community string?

You can do this with the VACM. Do not add write access entries for the
v1v2group and add a new group v1v2writegroup for your "secret" community
and give it the needed write access entries. For each used community
name, add an entry to the snmpCommunityEntry.

Regards,
  Jochen