Discovery via proxy

[Ronald]

I have a configuration with a SNMP proxy
Different devices use the same IP but each device has a different read community.
Problem is this when I do a disco.

amastelek@nedi:~$ sudo /var/nedi/nedi.pl -Aall

Network Discovery (1.9.100) /var/nedi/nedi.pl -Aall
Started with 9 seeds at Thu Aug 13 06:56:33 2020
-------------------------------------------------------------------------------
Device                          Status                          Todo/Done-Time
===============================================================================
102.132.201.164 Warehouse       StIvIx i12  j2   Ap a0/0    Fw    8/1-1s
102.132.201.180 fbsa34Diasmedia StIvIx i2  j2    a4/0    Fw    7/2-1s
102.132.201.164 IP discovered already                       6/2-0s
102.132.201.164 IP discovered already                       5/2-0s
102.132.201.180 IP discovered already                       4/2-0s
102.132.201.164 IP discovered already                       3/2-0s
102.132.201.164 IP discovered already                       2/2-0s
102.132.201.164 IP discovered already                       1/2-0s
102.132.201.164 IP discovered already                       0/2-0s

How do I run nedi.pl so it ignores the IP?

[rickli]

I've never seen this and I'm afraid you'll need to run nedi.pl once for every ip. Alternatively you could disable the "discover already" check in the source code...

[Ronald]

I'll have to create a new script for that but it won't really scale.

Is it possible to have a command line switch to disable discover already?

I am using nedi as a POC on an SDWAN and am using the standard linux NET-SNMP proxy on the CPE.

[Ronald]

Maybe it would be easier if a dup IP is reported only if the IP & read community is the same?

I'm using this: http://net-snmp.sourceforge.net/wiki/index.php/Snmpd_proxy

[rickli]

Could be done, but as long as there's not more demand for this I'd rather keep the process as is.

Change line 1529 in libmisc.pm:

   }elsif( 0 and grep {$_ eq $doip{$id}} (@doneip,@failip) ){

[Ronald]

I gave that a go but now it still reports "Done already"
The index for the discovery is the IP and not the device name.

I think the Index would be used with a -p but doesn't make sense with -A???

[rickli]

$doip contains IP addresses...

You still get the same log entries?