Hey guys,

I'm using net-snmp-5.1.2 on Linux Fedora Core 3.
I'm trying to get some useful info from a Cisco PIX firewall (OS
v6.2.2), using snmpwalk, but i encountered some issues.

I can get the basic info (such as per-interface traffic counters and
such), but not the vital stats such as CPU usage, memory usage, etc.
I need the vital stats in order to troubleshoot an issue with this
firewall - plus, it's just nice to have all those parameters monitored.
A PIX firewall could be monitored using CiscoWorks, however, i prefer to
use net-snmp to get that info because this way i can integrate firewall
monitoring with other monitoring that we're doing, using tools such as
RRD, munin, etc. The existing monitoring infrastructure is pretty big
already, has proved itself in production and i'd rather not put the
firewalls on another tool separated from everyone else.

I followed the "Using SNMP with the Cisco Secure PIX Firewall" document
on cisco.com to the letter. The document describes how to configure the
firewall, then tells you to download some MIBs and use them. The MIBs i
used are here (the CISCO-* files):

http://florin.myip.org/snmp/

I put all MIB files in a local directory, then run:

snmpwalk -v 1 -Cc -M "/usr/share/snmp/mibs:." -c XXXXXXXXXXX
AAA.BBB.CCC.DDD

But i only get the generic info, per-interface traffic counters and such
(see the 1.txt file at the URL above, it's slightly obfuscated).

Then i did this:

snmpwalk -v 1 -Cc -M "/usr/share/snmp/mibs:." -m ALL -c XXXXXXXXXXX
AAA.BBB.CCC.DDD

In addition to the same info as with the previous command, i get a bunch
of errors - see the 2.txt file at URL above (some minor obfuscation).

I contacted Cisco, and this is their reply:

###################################################
I've spoken with some engineers from the NMS team since from your last 2
emails I have verified that the problem is not on the PIX (and actually
this case should go to the NMS team, however they just gave me pointers
to answer your inquiry).
They told me that the reason you have the following error (below) is
because the 3rd party SNMP utility you are using has not compiled
properly the MIB you have downloaded for the PIX. You are advised to
check with the 3rd party vendor on as to how their utility compiles
these MIBs.

$ snmpwalk -v 1 -Cc -M "/usr/share/snmp/mibs:." -m ALL -c 2hard2guess123
198.149.23.5
Cannot find module (SNMPv2-TC-v1): At line 11 in ./CISCO-PROCESS-MIB-
V1SMI.my
Cannot find module (CISCO-SMI): At line 13 in ./CISCO-PROCESS-MIB-
V1SMI.my
Cannot find module (CISCO-TC): At line 15 in ./CISCO-PROCESS-MIB-
V1SMI.my
Did not find 'TimeStamp' in module #-1 (./CISCO-PROCESS-MIB-V1SMI.my)
Did not find 'DisplayString' in module #-1 (./CISCO-PROCESS-MIB-
V1SMI.my)
Did not find 'RowStatus' in module #-1 (./CISCO-PROCESS-MIB-V1SMI.my)
Did not find 'ciscoMgmt' in module #-1 (./CISCO-PROCESS-MIB-V1SMI.my)
###################################################

Now, i thought i should act in good faith and "check with the 3rd party
vendor" - which is the net-snmp community.

Any suggestion is appreciated. I can run tests to further clarify the
issue, just tell me what to do. Thanks,

-- 
Florin Andrei

http://florin.myip.org/



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