Re: SNMPv3 implementation & co-existence

On 20/09/2007, Anuradha A- TLS, Chennai. <aanuradha@hcl.in> wrote:
> Is the Co-existence mib being implemented in net-snmp?

What do you mean by the Co-existence MIB?
Can you provide a reference?

If you mean the SNMP-COMMUNITY-MIB (defined in RFC3584, the
co-existence specification), then no - this MIB is not currently implemented.


> If No, how is the co-existence of v1,v2c and v3 being achieved?

There is an equivalent mapping between v1/2c community strings and
SNMPv3-style security names - specified by the 'com2sec' directive.
This was implemented privately, at around the same time as the
COMMUNITY MIB was being developed.


> How and where the community strings for v1 and v2c are being created and verified?
> It would be of great help if somebody can explain these.

See 'agent/mibgroup/mibII/vacm_conf.c' - in particular the routine
'vacm_check_view'

Dave

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