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dhcp - unknown lease error

Tags: Linux networking dhcp, dhcpd: DHCPREQUEST for 192.168.0.103 from 00:11:31:f1:3b:bc via eth0: unknown lease 192.168.0.103
I have two CentOS 5.1  linux machines on the same network.

I have a dhcp server set up. I'm restarting networking on the client machine. It finds the dhcp server and restarts networking, But it is not being updated with a new IP address from the dhcp server.

On the server I'm getting this error in /var/log/messages:

---
Mar 5 17:11:57 localhost dhcpd: DHCPREQUEST for 192.168.0.103 from
00:11:31:f1:3b:bc via eth0: unknown lease 192.168.0.103.
---

192.168.0.103 is the IP address of the client that it is getting from the router. Shouldn't the client get it's IP address from the Linux dhcp server?

Below is my config file, which I have simplified as much as possible but is still not working.

Thanks

---------------------------

ddns-update-style interim;
ignore client-updates;

subnet 192.168.0.0 netmask 255.255.255.0 {

option routers 192.168.0.1;
option subnet-mask 255.255.255.0;

option time-offset -18000; # Eastern Standard Time

range dynamic-bootp 192.168.0.128 192.168.0.254;
default-lease-time 21600;
max-lease-time 43200;
}
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Question Stats
Zone: Networking
Question Asked By: steveriley1310
Solution Provided By: rindi
Participating Experts: 2
Solution Grade: B
Views: 16
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[+][-]Accepted Solution by rindi

Rank: Master

Accepted Solution by rindi:

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Comment by noci
Also if you changed the address space in use, you should release and then re-request a new lease.

On windows:

ipconfig /release
ipconfig /renew

on

Unix you need to remove the information cached by dhcpclient/dhclient/pump or what ever you used:
For dhcp you can do it with:
dhcpcd -k

(possibly specifying the interface if needed).
 
 
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