Nov 1 11:53:24 laptop dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67
Nov 1 11:53:24 laptop dhclient: DHCPNAK from 192.168.1.1
Nov 1 11:53:25 laptop dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8
Nov 1 11:53:25 laptop dhclient: DHCPOFFER from 192.168.1.1
Nov 1 11:53:25 laptop dhclient: DHCPREQUEST on eth0 to 255.255.255.255 port 67
Nov 1 11:53:25 laptop dhclient: DHCPACK from 192.168.1.1
Nov 1 11:53:25 laptop dhclient: bound to 192.168.1.3 — renewal in 39303 seconds.

Apparently, my computer tried to renew the IP address from the router, and was rejected. Then my computer started over a new DHCP request, and was offered the same IP.

I found all renewal requests were denied after checking the logs back a few days. I wonder if the router was designed to deny any DHCPREQUEST unless it immediately follows a DHCPOFFER. I can’t figure out any good reason for this. What I could think of is that the firmware programmers were just too lazy to implement a good DHCP server – after all, it was the cheapest wireless router I was able to find…

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