discovery and snmp

Raul Miller (rmiller@aspensys.com)
Mon, 28 Apr 1997 22:54:22 -0400

I have a discovery problem: many of the hosts have netmasks rather
than subnet masks. Thus, discovery doesn't properly show the subnets
the machines are on.

It is fairly simple to extract the proper subnet masks from the gateways
using snmp. However, there are several ambiguities to consider:

(1) in the general case, is it ok to query gateway for netmask, or
is this requirement unique to me?

(2) in the general case, what's the best way to inform the discovery
process of snmp community for gateways?

(a) give list of plausible communities and poll (problem:
even worse security than normal, doesn't deal
with snmpv2).

(b) give alias definitions for each gateway (problem:
how to get the discovery process to find alias?)

(c) other?

There's also the little matter that it would be nice to be able
to focus discovery on a single subnet (or supernet). [supernet
is sequence of class Cs, aligned on power-of-2-boundary.]

Suggestions?

Thanks,

-- 
Raul Miller
<rmiller@aspensys.com>
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