a single subnet that is failing

Denis Laventure Denis_Laventure at uqac.ca
Mon Nov 26 18:10:36 UTC 2007


You're trying to execute dhcpd from your path. You should use ./dhcpd
restart if you're in /etc/init.d or better use /etc/init.d/dhcpd restart.

Aaron S. Thompson a écrit :
> Hi All,
>
> I have a single subnet that is failing and I could use a little
> assistance on finding out why. I have a couple hundred subnets that
> are working fine with 18,132 leases. Below is some key information on
> my setup.
>
> My routers are properly relaying the udp broadcast and the dhcp box is
> seeing the request but hasn't matched it to the declaration. What
> other trouble shooting techniques I'm I missing?
>
> Linux Version
>
> [root at ns2 init.d]# uname -a
> Linux ns2.berklee.net 2.6.9-55.EL #1 Fri Apr 20 16:35:59 EDT 2007 i686
> i686 i386 GNU/Linux
>
> Two error's on start up. (I do have this config (DHCPDARGS=eth0) in
> /etc/sysconfig/dhcpd)
>
>  
>
> [root at ns2 init.d]# dhcpd restart
> Internet Systems Consortium DHCP Server V3.0.1
> Copyright 2004 Internet Systems Consortium.
> All rights reserved.
> For info, please visit http://www.isc.org/sw/dhcp/
> Wrote 0 deleted host decls to leases file.
> Wrote 0 new dynamic host decls to leases file.
> Wrote 18132 leases to leases file.
>
> No subnet declaration for restart (0.0.0.0).
> ** Ignoring requests on restart.  If this is not what
>    you want, please write a subnet declaration
>    in your dhcpd.conf file for the network segment
>    to which interface restart is attached. **
>
> Not configured to listen on any interfaces!
>
> 10.4.51.0 is NOT working and 10.4.54.0 is working.
>
>   } 
> }
> subnet 10.4.51.0 netmask 255.255.255.0 {
>   #  Web Group
>   option subnet-mask 255.255.255.0;
>   option broadcast-address 10.4.51.255;
>   option routers 10.4.51.1;
> pool { 
> deny dynamic bootp clients;
>    range 10.4.51.30 10.4.51.254;
>   } 
> }
> subnet 10.4.54.0 netmask 255.255.255.0 {
>   #4th Floor HR
>   option subnet-mask 255.255.255.0;
>   option broadcast-address 10.4.54.255;
>   option routers 10.4.54.1;
> pool { 
> deny dynamic bootp clients;
>    range 10.4.54.30 10.4.54.254;
>   } 
> }
>
> Log Error's
>
> Nov 26 11:43:27 ns2 dhcpd: DHCPDISCOVER from 00:03:93:43:58:f0 via
> 10.4.51.3: unknown network segment
> Nov 26 11:43:27 ns2 dhcpd: DHCPDISCOVER from 00:03:93:43:58:f0 via
> 10.4.51.2: unknown network segment
> Nov 26 11:43:28 ns2 dhcpd: DHCPDISCOVER from 00:03:93:8a:5d:70 via
> 10.4.51.2: unknown network segment
> Nov 26 11:43:28 ns2 dhcpd: DHCPDISCOVER from 00:03:93:8a:5d:70 via
> 10.4.51.3: unknown network segment
>
> Thanks for taking the time!
>
>
> Aaron

-- 
Denis Laventure
Technicien en informatique
Service des Technologies de l'Information
Université du Québec à Chicoutimi

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