Single subnet active discovery fails with log showing wrong subnet

[Djar]

I experience problems with active subnet discovery which I can't make sense of. I allready set the logging to Level 9 on the server and Level 7 on the proxy. The "probe" i use is a raspberry in a different location, tunneling in. Everything works fine for nodes which I added manual.

However, active discovery does not discover anything, and seems not too run at all:

2019.07.17 02:47:48.841 *D* [poll.discovery    ] Starting active discovery check on range 10.85.27.5 - 10.85.27.252 via proxy probe-box-085-Q21 [596]
2019.07.17 02:47:49.150 *D* [poll.discovery    ] Finished active discovery check on range 10.85.28.5 - 10.85.27.252 via proxy probe-box-085-Q21 [596]

That doesn't look right, does it? The subnet is wrong in the second line.

I tested several ways to enter the 10.85.27.0/24 into the Active Discovery Targets (see GUI-setting-Discovery.png):

Subnet 10.85.27.0/24
Range 10.85.27.1 - 10.85.27.254
Range 10.85.27.5 - 10.85.27.252

The error does not disappear, and no nodes are added.

On the proxy probe, the log shows:

2019.07.17 02:34:10.750 *D* [CS-2(19442)] Received control message CMD_GET_NXCP_CAPS
2019.07.17 02:34:10.750 *D* [CS-2(19442)] Sending message CMD_NXCP_CAPS (ID 0; size 16; uncompressed)

2019.07.17 02:34:11.677 *D* [CS-2(19442)] Received message CMD_GET_LIST (3)
2019.07.17 02:34:11.677 *D* [CS-2(19442)] Requesting list "ICMP.ScanRange(10.85.27.5,10.85.27.252)"
2019.07.17 02:34:11.678 *D* [CS-2(19442)] GetListValue(): result is 404 (UNKNOWN_PARAMETER)
2019.07.17 02:34:11.678 *D* [CS-2(19442)] Sending message CMD_REQUEST_COMPLETED (ID 3; size 32; uncompressed)
2019.07.17 02:34:11.987 *D* [CS-2(19442)] Communication channel closed by peer
[...]

Any ideas where to look?

Server:
NetXMS Server Version 2.2.15 Build 9523 (2.2.15.2) (UNICODE)
NetXMS Core Agent Version 2.2.15 Build 9523 (2.2.15.2) (UNICODE)

Probe Proxy:
NetXMS Core Agent Version 2.2.8 Build 9514 (2.2.8-32-g4a24d07a2a) (UNICODE)

---

[victor]

Hi,

real problem here is on proxy side:

2019.07.17 02:34:11.677 *D* [CS-2(19442)] Requesting list "ICMP.ScanRange(10.85.27.5,10.85.27.252)"
2019.07.17 02:34:11.678 *D* [CS-2(19442)] GetListValue(): result is 404 (UNKNOWN_PARAMETER

Parameter ICMP.ScanRange was added in 2.2.12, so you have to upgrade your proxy.

Best regards,
Victor

[Djar]

Thanks, understood.
I will try again with Ubuntu proxy and report back.

Unfortunately, the version for Raspberry is lacking behind.

[victor]

We will add Raspberry to automated release builds, but currently it is built manually from time to time.

[Djar]

If updated the server, and changed from Raspberry to a Ubuntu, but the problem still exists:

probe-user@probe-box:~$ nxagentd -v
NetXMS Core Agent Version 2.2.16 Build 9524 (2.2.16) (UNICODE)

probe-user@probe-box:~$ cat /var/log/nxagentd | grep Scan -A 5
2019.07.17 12:02:34.193 *D* [comm.cs.249        ] Received message CMD_GET_LIST (3)
2019.07.17 12:02:34.194 *D* [comm.cs.249        ] Requesting list "ICMP.ScanRange(10.85.27.1,10.85.27.254)"
2019.07.17 12:02:34.194 *D* [comm.cs.249        ] GetListValue(): result is 404 (UNKNOWN_PARAMETER)
2019.07.17 12:02:34.194 *D* [comm.cs.249        ] Sending message CMD_REQUEST_COMPLETED (ID 3; size 32; uncompressed)

That's all the updates i can do. Building it myself from the GIT sources is above my Linux knowledge. 

[victor]

Did you load ping subagent on proxy?

[Djar]

@victor said in Single subnet active discovery fails with log showing wrong subnet:

Did you load ping subagent on proxy?

Negative. This is the agent config:

# Log File
LogFile = /var/log/nxagentd
DebugLevel = 9

MasterServers = lab.lab-network.example
ServerConnection = lab.lab-network.example

EnableProxy = Yes
EnableSNMPProxy = Yes
EnableSNMPTrapProxy = Yes
EnableTCPProxy = Yes

Does that mean that the ICMP subagent is required for active discovery?

[victor]

Yes. You have to have

SubAgent = ping.nsm

in nxagentd.conf.

[Djar]

@victor said in Single subnet active discovery fails with log showing wrong subnet:

Yes. You have to have

SubAgent = ping.nsm

in nxagentd.conf.

That helped, thank you.  ;D