[NTLUG:Discuss] DHCPD Chatter

[terry]

On 6/7/07, Keller Giacomarro <keller.g at gmail.com> wrote:
> I may be new to the list, but I have plenty of questions.  Thanks in
> advance for the help!
>
> I'm running a DHCPD server on Ubuntu Server at home that passes out
> addresses in the 10.2.0.100-10.2.0.254 range.  The server appears to be
> working fine, but I get this in syslog...
>
> Jun  7 19:59:39 PrivateServer dhcpd: DHCPREQUEST for 10.2.0.253 from
> 00:15:f2:ce:9a:55 (KellerDesktop) via eth1
> Jun  7 19:59:39 PrivateServer dhcpd: DHCPACK on 10.2.0.253 to
> 00:15:f2:ce:9a:55 (KellerDesktop) via eth1
> Jun  7 20:00:10 PrivateServer dhcpd: BOOTREQUEST from 00:d0:97:53:a8:40
> via eth1: BOOTP from dynamic client and no dynamic leases
> Jun  7 20:00:44 PrivateServer dhcpd: DHCPREQUEST for 10.2.0.253 from
> 00:15:f2:ce:9a:55 (KellerDesktop) via eth1
> Jun  7 20:00:44 PrivateServer dhcpd: DHCPACK on 10.2.0.253 to
> 00:15:f2:ce:9a:55 (KellerDesktop) via eth1
> Jun  7 20:00:47 PrivateServer dhcpd: BOOTREQUEST from 00:d0:97:53:a8:40
> via eth1: BOOTP from dynamic client and no dynamic leases
> Jun  7 20:01:24 PrivateServer dhcpd: BOOTREQUEST from 00:d0:97:53:a8:40
> via eth1: BOOTP from dynamic client and no dynamic leases
> Jun  7 20:01:35 PrivateServer dhcpd: DHCPREQUEST for 10.2.0.253 from
> 00:15:f2:ce:9a:55 (KellerDesktop) via eth1
> Jun  7 20:01:35 PrivateServer dhcpd: DHCPACK on 10.2.0.253 to
> 00:15:f2:ce:9a:55 (KellerDesktop) via eth1
> Jun  7 20:01:37 PrivateServer dhcpd: DHCPREQUEST for 10.2.0.254 from
> 00:0c:6e:fd:33:55 (MediaFrontend) via eth1
> Jun  7 20:01:37 PrivateServer dhcpd: DHCPACK on 10.2.0.254 to
> 00:0c:6e:fd:33:55 (MediaFrontend) via eth1
>
> My big question here is about the DHCPREQUEST and DHCPACKs from
> KellerDesktop and MediaFrontend.  They repeat like this for forever.
> I've heard of some people even having server crashes from this in the
> log, but I'm unable to find a good solution online.

Maybe [for some reason or other] the DHCP server is not providing all
the info the Ubuntu systems are requesting?
You might try resetting the network on one of them and watching
tcpdump to see what's really being requested and returned.

>
> Both KellerDesktop and MediaFrontend have valid IP addresses and appear
> to work great.  There are several other DHCP clients that do not exhibit
> this behavior.  Both clients are running Ubuntu Desktop 7.04.  The DHCP
> server is also running mysql, dns, and ddns.  Any insight into what's
> causing these two machines to chat with the dhcp server so often would
> be most appreciated.
>
> Also, if anyone happens to know, how do I tell my Cisco 3500XL Switch to
> stop asking for an IP address?
>
> Thanks for the help in advance.
> _______________________________________________
> http://www.ntlug.org/mailman/listinfo/discuss
>


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