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logging not generating logs

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Occasional Contributor

logging not generating logs

I'm trying to enable logging from our HP ProCurve switch to a network server, but nothing seems to be generated:

On the switch:


conf t
logging facility local0

sh debug
Debug Logging
Source IP Selection: Outgoing Interface
Logging --
Protocol = UDP
Port = 514
Facility = local0
Severity = debug
System Module = all-pass
Priority Desc =
Enabled debug types:

on the server side, we are using rsyslog to collect messages, which works well with Cisco device:

# netstat -anp | grep rsyslog
udp        0      0   *                           20568/rsyslogd  
udp6       0      0 :::514                  :::*                                20568/rsyslogd  
unix  10     [ ]         DGRAM                    9664099  20568/rsyslogd      /dev/log

but I can't find any messages from HP Switch in /var/log/messages or in the destination log file via configuration in /etc/rsyslog.conf:

local0.*                        -/var/log/network.log
Respected Contributor

Re: logging not generating logs

We have the same setup as you: Procurve switches and rsyslog. We use a different facility, but that shouldn't matter. We use LogAnalyzer as a graphical frontend to rsyslog.


Is there a firewall between the switches and the Syslog server? Can you see the syslog traffic in the firewall logs?


Occasional Contributor

Re: logging not generating logs

I can be sure that there're no firewalls or any packet filters between the switch and the rsyslog server, is there any way to check if messages are being sent from the switch?

Respected Contributor

Re: logging not generating logs

Try to mirror the switch port where the syslog server is connected and use Wireshark to see if the syslog traffic is being received by the server.


Michael Patmon
Trusted Contributor

Re: logging not generating logs



dut# show syslog statistics

 Syslog General Statistics details

  Logs Sent           : 153             Logs Recv           : 0           
  Logs Relay          : 0               Logs reSentError    : 0           
  Logs sentError      : 0               Logs reSent         : 23          
  Logs Buffered       : 1

Established Member

Re: logging not generating logs

Also, install something like Kiwi syslog on your laptop, point the switch at it, and see if that receives the logs.

Stephen Swain
Frequent Advisor

Re: logging not generating logs

On the server side, I find this useful for checking syslogs.


$ tcpdump -i eth0 'udp port 514'