Todd Zullinger wrote: > Are you sure that there isn't another dhcp server running on the > network? Have you checked in /var/log/messages for dhcp logs from the > time the ip was assigned to your laptop? Thanks for the suggestion. I see that the first mention of this address is on the laptop: ----------------------------- Oct 12 16:29:43 elizabeth avahi-daemon[2454]: Network interface enumeration completed. Oct 12 16:29:44 elizabeth avahi-daemon[2454]: Registering new address record for 192.168.2.101 on eth0.IPv4. Oct 12 16:29:45 elizabeth avahi-daemon[2454]: Registering HINFO record with values 'I686'/'LINUX'. ----------------------------- So it seems that avahi chose this address, for some reason. As far as I can see, once an address like this is given, and a dhcp lease is assigned, it is very difficult to lose the address. >> I should say that WiFi works perfectly well with this wrong address. >> But it has made me realize that I am very hazy about how dhcp works, >> and how exactly dhcpd determines the addresses it will give out. Is >> there a reasonably clear account of this anywhere? > > Maybe the DHCP FAQ will be useful? > > http://www.dhcp-handbook.com/dhcp_faq.html I'll study that. Thanks for the pointer. > I have my dhcp server give out specific addresses to some systems > based on the mac address and that's worked well for me. This has always worked perfectly for me, until now. >> I saw incidentally that something or someone (I assume a yum update) >> had moved /etc/dhclient.conf to dhclient.conf.bak ... >> just leaving what looked like a fairly useless dhclient.conf.sample >> , confirming my view that the people who write sample files for >> Fedora are somewhat lacking in common sense. > > If you're sure of that, please find out what overwrote the file and > file a bug report. Just taking stabs in the dark and saying someone > else is lacking in common sense doesn't do anything to get real > problems fixed. :-) It happened last month, so I guess it was a dhcp update. It isn't really important. The sample file in question (don't know if everyone has it) is absurdly complicated, as if the writer wanted to include every option possible. A sample file, in my view, should be a minimal working example.
