[ Config: CC ] I have one host on my DHCP network that is receiving
DHCPDECLINE every two weeks or so. The host is renewing its lease every
4 hours (or so), so it is working most of the time.
For example, here is the start of a DECLINE and OFFER new address:
Sun Jul 10 08:44:08 2016 daemon.info dnsmasq-dhcp[1539]:
DHCPREQUEST(br-lan) {net}.173 {mac} Sun Jul 10 08:44:08 2016 daemon.info
dnsmasq-dhcp[1539]: DHCPACK(br-lan) {net}.173 {mac} {host} # 30 seconds
later, DHCPDECLINE Sun Jul 10 08:44:36 2016 daemon.info
dnsmasq-dhcp[1539]: DHCPDECLINE(br-lan) {net}.173 {mac} Sun Jul 10
08:44:49 2016 daemon.info dnsmasq-dhcp[1539]: DHCPDISCOVER(br-lan) {mac}
# changed from 173 to 174 Sun Jul 10 08:44:49 2016 daemon.info
dnsmasq-dhcp[1539]: DHCPOFFER(br-lan) {net}.174 {mac} Sun Jul 10
08:44:49 2016 daemon.info dnsmasq-dhcp[1539]: DHCPDISCOVER(br-lan) {mac}
Sun Jul 10 08:44:49 2016 daemon.info dnsmasq-dhcp[1539]:
DHCPOFFER(br-lan) {net}.174 {mac} Sun Jul 10 08:44:50 2016 daemon.info
dnsmasq-dhcp[1539]: DHCPREQUEST(br-lan) {net}.174 {mac} Sun Jul 10
08:44:50 2016 daemon.info dnsmasq-dhcp[1539]: DHCPACK(br-lan) {net}.174
{mac} {host} Every few hours, for 21 days: <repeat> Mon Jul 11 07:40:27
2016 daemon.info dnsmasq-dhcp[1539]: DHCPREQUEST(br-lan) {net}.174 {mac}
Mon Jul 11 07:40:27 2016 daemon.info dnsmasq-dhcp[1539]: DHCPACK(br-lan)
{net}.174 {mac} {host} </repeat> Then, DHCPDECLINE, but same address Sun
Jul 31 20:00:45 2016 daemon.info dnsmasq-dhcp[16256]:
DHCPREQUEST(br-lan) {net}.174 {mac} Sun Jul 31 20:00:45 2016 daemon.info
dnsmasq-dhcp[16256]: DHCPACK(br-lan) {net}.174 {mac} {host} Sun Jul 31
20:01:20 2016 daemon.info dnsmasq-dhcp[16256]: DHCPDECLINE(br-lan)
{net}.174 {mac} Sun Jul 31 20:01:33 2016 daemon.info
dnsmasq-dhcp[16256]: DHCPDISCOVER(br-lan) {mac} Then, renewal every few
hours for 8 days. After 8 days, DHCPDECLINE and OFFER new address: Mon
Aug 8 19:45:32 2016 daemon.info dnsmasq-dhcp[16256]: DHCPREQUEST(br-lan)
{net}.174 {mac} Mon Aug 8 19:45:32 2016 daemon.info dnsmasq-dhcp[16256]:
DHCPACK(br-lan) {net}.174 {mac} {host} # 35 seconds later, DHCPDECLINE
Mon Aug 8 19:46:07 2016 daemon.info dnsmasq-dhcp[16256]:
DHCPDECLINE(br-lan) {net}.174 {mac} Mon Aug 8 19:46:20 2016 daemon.info
dnsmasq-dhcp[16256]: DHCPDISCOVER(br-lan) {mac} Mon Aug 8 19:46:20 2016
daemon.info dnsmasq-dhcp[16256]: DHCPOFFER(br-lan) {net}.175 {mac} Mon
Aug 8 19:46:20 2016 daemon.info dnsmasq-dhcp[16256]:
DHCPDISCOVER(br-lan) {mac} Mon Aug 8 19:46:20 2016 daemon.info
dnsmasq-dhcp[16256]: DHCPOFFER(br-lan) {net}.175 {mac} Mon Aug 8
19:46:21 2016 daemon.info dnsmasq-dhcp[16256]: DHCPREQUEST(br-lan)
{net}.175 {mac} Mon Aug 8 19:46:21 2016 daemon.info dnsmasq-dhcp[16256]:
DHCPACK(br-lan) {net}.175 {mac} {host} Why would dnsmasq send an
unsolicited DHCPDECLINE? Also, it only seems to be affecting one host.
--
-Justin
[email protected]
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