Port scan template

[stelben]

Hi!

I have some 100-150 routers that I need to monitor in different ways.
Most of them can be monitored by using an item key like:
net.tcp.service[tcp,<ip>,80]
The ports may vary between 10-15 different ports.
Ping does not work in all cases.

I have tried to create a template with discovery rules that would TCP a port, if detected as UP I want to create an item and a trigger to that.
If multiple ports are open I'm fine with monitoring several ports on the same host.

Can I do that without too much hassle?
I haven't succeeded and I'm out of ideas I'm looking for a solution without a special script on the Zabbix server, if possible.

Any idea would be very much appreaciated, thanks!

[allexpetrov]

Hello,

As per documentation - the Low Level discovery needs to receive the valid JSON output. I would like to suggest to use LLD based on SNMP. For example:

TCP via SNMP: tcpConnLocalPort or 1.3.6.1.2.1.6.13.1.3
UDP via SNMP: udpLocalPort or 1.3.6.1.2.1.7.5.1.2

Create a discovery and then create item/trigger/graph prototype with corresponding LLD macro like {#TCPPORT} to perform your check. ]

More about SNMP and LLD: https://www.zabbix.com/documentation...y_of_snmp_oids

Note: You need to refer the router's manual or simply by performing {{snmpwalk}} through that router.

Regards,
Alex!

[stelben]

Thank you very much for your reply!

These hosts that I need to monitor are external routers/firewall/etc to which I have no SNMP-access.
It's strictly TCP to a port. If a session is established = UP.

Just like net.tcp.service[tcp,<ip>,80] will do.

I want to create a discovery rule that scans 10-15 predefined ports and creates items for each port that responds.

[allexpetrov]

Ok I see now,

In such case the only solution is to search something in htps://share.zabbix.com or you can try to use script which will use zabbix_sender to pass the JSON to Zabbix.

I didn't had time to check, but I believe that there is a chance to nmap the host, put output into regular nmap's .xml and then convert it to the JSON format. Next - pass it to Zabbix.

Regards,
Alex!