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syslog DHCP messages

 
Tim Medford
Valued Contributor

syslog DHCP messages

The syslog on our production server is consumed by messages about DHCP. They look like this:

Apr 3 07:27:30 24.7.129.58 01B2 400 DHCP SERVER Offered | Offering: 10.
0.1.50 To: 003065122C1C By: 24.7.129.58
Apr 3 08:24:52 24.12.182.43 0D94 400 DHCP SERVER Offered | Offering: 10.
0.1.22 To: 0030651238AF By: 24.12.182.43

These messages repeat hundreds, if not thousands of times throughout the day.

Is this normal? We have a DHCP server on our network, but this machine is not it. I thought I had disabled DHCP but perhaps not?

Thanks in advance,
Tim
4 REPLIES 4
Vincenzo Restuccia
Honored Contributor

Re: syslog DHCP messages

Check /etc/rc.config.d/netconf if you have a configuration of DHCP.
Paula J Frazer-Campbell
Honored Contributor

Re: syslog DHCP messages

Tim
Chech that you do not DHCP running, also it appears from your messages that more than one ip address is offering addresses. It may be that your machine is just logging from these multiple DHCP servers.

Apr 3 07:27:30 24.7.129.58 01B2 400 DHCP SERVER Offered | Offering: 10.
0.1.50 To: 003065122C1C By: 24.7.129.58
Apr 3 08:24:52 24.12.182.43 0D94 400 DHCP SERVER Offered | Offering: 10.
0.1.22 To: 0030651238AF By: 24.12.182.43



Paula
If you can spell SysAdmin then you is one - anon
Tim Medford
Valued Contributor

Re: syslog DHCP messages

Thanks for the info, I checked and I have the following in netconf:

DHCP_ENABLE[0]=0
DHCP_ENABLE[1]=0

Any other things I should look at?
Paula J Frazer-Campbell
Honored Contributor

Re: syslog DHCP messages

Tim
From your log I can see two ip address offering: -

1. 24.7.129.58
2. 24.12.182.43

Check out which machines have these ip addresses.

I imagine one is the DHCP server and the other is a machine wrongly configured to be a DHCP server.

Paula
If you can spell SysAdmin then you is one - anon