On Tue, Feb 05, 2019 at 09:44:19PM +0000, Chris Green wrote: > I'm having a minor problem with my laptop and 'roaming WiFi', I've > just noticed the following sequence in syslog on the system that runs > as my DHCP/DNS server running dnsmasq:- > > Feb 5 21:32:52 dns dnsmasq-dhcp[385]: DHCPDISCOVER(eth0) > 00:28:f8:3d:3b:aa > Feb 5 21:32:52 dns dnsmasq-dhcp[385]: DHCPOFFER(eth0) 192.168.1.92 > 00:28:f8:3d:3b:aa > Feb 5 21:32:55 dns dnsmasq-dhcp[385]: DHCPDISCOVER(eth0) > 00:28:f8:3d:3b:aa > Feb 5 21:32:55 dns dnsmasq-dhcp[385]: DHCPOFFER(eth0) 192.168.1.92 > 00:28:f8:3d:3b:aa > Feb 5 21:32:55 dns dnsmasq-dhcp[385]: DHCPREQUEST(eth0) 192.168.1.102 > 00:28:f8:3d:3b:aa > Feb 5 21:32:55 dns dnsmasq-dhcp[385]: DHCPNAK(eth0) 192.168.1.102 > 00:28:f8:3d:3b:aa > wrong server-ID > Feb 5 21:33:24 dns dnsmasq-dhcp[385]: DHCPREQUEST(eth0) 192.168.1.92 > 00:28:f8:3d:3b:aa > Feb 5 21:33:24 dns dnsmasq-dhcp[385]: DHCPACK(eth0) 192.168.1.92 > 00:28:f8:3d:3b:aa t470 > Feb 5 21:33:24 dns dnsmasq-dhcp[385]: DHCPDISCOVER(eth0) > 00:28:f8:3d:3b:aa > Feb 5 21:33:24 dns dnsmasq-dhcp[385]: DHCPOFFER(eth0) 192.168.1.92 > 00:28:f8:3d:3b:aa > Feb 5 21:33:24 dns dnsmasq-dhcp[385]: DHCPREQUEST(eth0) 192.168.1.102 > 00:28:f8:3d:3b:aa > Feb 5 21:33:24 dns dnsmasq-dhcp[385]: DHCPNAK(eth0) 192.168.1.102 > 00:28:f8:3d:3b:aa > wrong server-ID > Feb 5 21:33:29 dns dnsmasq-dhcp[385]: DHCPREQUEST(eth0) 192.168.1.100 > 7c:67:a2:57:6c:78 > Feb 5 21:33:29 dns dnsmasq-dhcp[385]: DHCPACK(eth0) 192.168.1.100 > 7c:67:a2:57:6c:78 > DESKTOP-2S4CP78 > Feb 5 21:33:35 dns dnsmasq-dhcp[385]: DHCPREQUEST(eth0) 192.168.1.100 > 7c:67:a2:57:6c:78 > Feb 5 21:33:35 dns dnsmasq-dhcp[385]: DHCPACK(eth0) 192.168.1.100 > 7c:67:a2:57:6c:78 > DESKTOP-2S4CP78 > Feb 5 21:34:39 dns dnsmasq-dhcp[385]: DHCPREQUEST(eth0) 192.168.1.100 > 7c:67:a2:57:6c:78 > Feb 5 21:34:39 dns dnsmasq-dhcp[385]: DHCPACK(eth0) 192.168.1.100 > 7c:67:a2:57:6c:78 > DESKTOP-2S4CP78 > Feb 5 21:34:45 dns dnsmasq-dhcp[385]: DHCPREQUEST(eth0) 192.168.1.100 > 7c:67:a2:57:6c:78 > Feb 5 21:34:45 dns dnsmasq-dhcp[385]: DHCPACK(eth0) 192.168.1.100 > 7c:67:a2:57:6c:78 > DESKTOP-2S4CP78 > Feb 5 21:35:37 dns systemd[1]: Started Session c4 of user chris. > Feb 5 21:36:44 dns dnsmasq-dhcp[385]: DHCPREQUEST(eth0) 192.168.1.100 > 7c:67:a2:57:6c:78 > Feb 5 21:36:44 dns dnsmasq-dhcp[385]: DHCPACK(eth0) 192.168.1.100 > 7c:67:a2:57:6c:78 > DESKTOP-2S4CP78 > Feb 5 21:36:45 dns dnsmasq-dhcp[385]: DHCPREQUEST(eth0) 192.168.1.100 > 7c:67:a2:57:6c:78 > Feb 5 21:36:45 dns dnsmasq-dhcp[385]: DHCPACK(eth0) 192.168.1.100 > 7c:67:a2:57:6c:78 > DESKTOP-2S4CP78 > Feb 5 21:37:14 dns dnsmasq-dhcp[385]: DHCPDISCOVER(eth0) > 7c:67:a2:57:6c:78 > Feb 5 21:37:14 dns dnsmasq-dhcp[385]: DHCPOFFER(eth0) 192.168.1.100 > 7c:67:a2:57:6c:78 > Feb 5 21:37:14 dns dnsmasq-dhcp[385]: DHCPDISCOVER(eth0) > 7c:67:a2:57:6c:78 > > So what's happening around that DHCPNAK message? > Oops! I've just noticed I had another DHCP server running on the LAN! I guess that might explain it.
-- Chris Green _______________________________________________ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
