Cisco FMC Sending to NagiosLS 2.1.8 on UDP514 - no logs rec'

This support forum board is for support questions relating to Nagios Log Server, our solution for managing and monitoring critical log data.
Locked
jdp
Posts: 1
Joined: Mon Jul 19, 2021 7:52 am

Cisco FMC Sending to NagiosLS 2.1.8 on UDP514 - no logs rec'

Post by jdp »

I have an instance of Cisco Firepower Management Center running at version 6.6.4

It is set to send Audit logs as per the first section here:
https://forum.tufin.com/support/kc/late ... /12108.htm

I understand that by choosing "LOCAL7" as my Facility, the FMC should be shipping logs on UDP 514 to my Nagios instance at 10.75.2.45

I have then gone on to set the Nagios Server to listen on protected ports as in method 1 here:
https://assets.nagios.com/downloads/nag ... Server.pdf

I see no logs coming in, and I don't have a grip on what more I can check through to ~force~ a check.

I attempted to push the FMC toward a temporary syslog service setup, just to give it a sniff check, but I can't prove anything because UDP514 was already in use on that temporary box (by a security tool that I can't remove).

Is there anything I can check out on the NagiosLS VM that might prove that I'm able to listen on UDP514 after completing method 1?

J.
User avatar
pbroste
Posts: 1288
Joined: Tue Jun 01, 2021 1:27 pm

Re: Cisco FMC Sending to NagiosLS 2.1.8 on UDP514 - no logs

Post by pbroste »

Hello @jdp

Thanks for reaching out, I see that the Cisco Firewall Management Center has an option to change the port (514) and change it to something like 5514 and save config.

Use tcpdump to see if you are receiving anything:

Example:

Code: Select all

tcpdump udp port 5514 -vv
Thanks,
Perry
Locked