Hard coded device type?

hamish · Joined: 05 Aug 2008 Posts: 15 Location: London

Is it possible to force a particular devicetype for mactrack? The cisco's I have here return a horrendously long string in sysDescr... And it ends after only a few lines, way before it has the device type in it... And the 6506's and 6513's initial messgae is identical (It's the version etc).

Oh... And if anyone has a handy script for auto-population of the mactrack device from the other device table, I'd appreciate it... Is v2 of MacTrack going to re-use the data that's already there?

TIA
H

streaker69 · Posted: Tue Aug 05, 2008 8:14 am Post subject:

You can change the size of the field that that the sysDescr is stored in the database. That's what I had to do when I ran into this issue.

In the table mac_track_device_types change sysDescr_match from it's default to whatever you need. It will not hurt any other data that's stored in that table. I currently have mine set to a length of 100.

hamish · Joined: 05 Aug 2008 Posts: 15 Location: London

Thanks. Tried it and no luck... It looks like the cisco is chopping the response after a few lines... (version of IOS is 12.2(10)SXF10).

There is a better OID for the cisco that lists the exact model... WS-C6509-E, but although I've added that into the device types table, it looks like the scanner is still trying to match the sysdescr only...

Ahh.... Looking through the code it appears that although you can put additional checks into the device_types table via the Device Types menu, the find_scaning_function() routing only looks at sysDescr and sysObject... That appears to be hard coded...

Bug or just a missing feature that has yet to be coded?

H

streaker69 · Posted: Tue Aug 05, 2008 11:24 am Post subject:

If you do an SNMPWalk against OID 1.3.6.1.2.1.1.1.0 what does it display, can you post the results?

hamish · Joined: 05 Aug 2008 Posts: 15 Location: London

streaker69 · Posted: Wed Aug 06, 2008 6:56 am Post subject:

Wow, I've never seen one do that before. Most of the time the sysDescr is just a single line.

I know that MacTrack can use the % as a wildcard, but I've never actually seen it work.

If it is returning text up to that point, you could extend that database field to that many characters and put that in, I guess. It doesn't appear as though the mactrack_device_type.php page has a set limitation on the number of characters that can be entered in that box.

hamish · Joined: 05 Aug 2008 Posts: 15 Location: London

It's no use extending the field... The switch doesn't return enough characters to identify the model.

It does return the model in a different OID though. Un-ambiguously.

Vins · Joined: 12 Sep 2006 Posts: 43

I've changed the length of the field snmp_sysDescr from 100 to 150 and it's changed from

| Cisco Internetwork Operating System Software IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12. |

to

| Cisco Internetwork Operating System Software IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(20)EA1, RELEASE SOFTWARE (fc1) Copyright (c) 19 |

exactly 50 characters more than prior...

Vins · Joined: 12 Sep 2006 Posts: 43

Raised to 180 chars...

| Cisco Internetwork Operating System Software IOS (tm) C2950 Software (C2950-I6Q4L2-M), Version 12.1(20)EA1, RELEASE SOFTWARE (fc1) Copyright (c) 1986-2004 by cisco Systems, Inc. |