[OpenWrt-Devel] dnsmasq not leasing after a while. Sometimes more than 5 times a day

[Russell Senior]

>>>>> "Denis" == Denis Periša <darkman.hr at gmail.com> writes:

Denis> There is no other dhcp in network, it's routed connection RB435G
Denis> with multiple cards wlan.  this is config example:

Denis> interface=eth0 except-interface=eth1 interface=wlan3
Denis> interface=wlan0 interface=wlan1 interface=wlan2

Denis> dhcp-range=172.17.3.20,172.17.3.253,255.255.255.0,1h
Denis> dhcp-range=172.17.4.20,172.17.4.253,255.255.255.0,1h
Denis> dhcp-range=172.17.5.20,172.17.5.253,255.255.255.0,1h
Denis> dhcp-range=172.17.6.20,172.17.6.253,255.255.255.0,1h
Denis> dhcp-range=172.17.7.20,172.17.7.253,255.255.255.0,1h

From experience, sometimes there are DHCP servers you don't know about.

This is what I see in my test bed:

   # cat /var/etc/dnsmasq.conf.cfg01411c

   # auto-generated config file from /etc/config/dhcp
   conf-file=/etc/dnsmasq.conf
   dhcp-authoritative
   read-ethers
   enable-ubus
   bind-dynamic
   local-service
   domain=localnet
   server=/lan/
   except-interface=eth1
   dhcp-leasefile=/tmp/dhcp.leases
   resolv-file=/tmp/resolv.conf.auto
   dhcp-broadcast=tag:needs-broadcast
   addn-hosts=/tmp/hosts
   conf-dir=/tmp/dnsmasq.d
   user=dnsmasq
   group=dnsmasq


   dhcp-ignore-names=tag:dhcp_bogus_hostname
   conf-file=/usr/share/dnsmasq/dhcpbogushostname.conf


   dhcp-range=set:pub,10.11.24.5,10.11.24.30,255.255.255.224,1h
   no-dhcp-interface=eth1
   dhcp-range=set:priv,192.168.11.100,192.168.11.249,255.255.255.0,12h

Try turning on the force option.


-- 
Russell Senior, President
russell at personaltelco.net

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