[Dnsmasq-discuss] no leases left

Ben Humpert ben at an3k.de
Sat Sep 26 17:50:28 BST 2015


Hi,

I very often get this message and clients cannot connect anymore
because they don't get an IP address offered. Below is the log for one
request

Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 available DHCP
range: 192.168.0.200 -- 192.168.0.254
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 client provides
name: BrigittesiPhone
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759
DHCPDISCOVER(eth1.1) 50:7a:55:1a:96:62
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 tags: guest, eth1.1
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 DHCPOFFER(eth1.1)
192.168.0.223 50:7a:55:1a:96:62
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 requested options:
1:netmask, 3:router, 6:dns-server, 15:domain-name,
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 requested options:
119:domain-search, 252
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 next server: 192.168.0.2
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 sent size:  1
option: 53 message-type  2
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 sent size:  4
option: 54 server-identifier  192.168.0.2
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 sent size:  4
option: 51 lease-time  1h
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 sent size:  4
option: 58 T1  30m
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 sent size:  4
option: 59 T2  52m30s
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 sent size:  4
option:  1 netmask  255.255.255.0
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 sent size:  4
option: 28 broadcast  192.168.0.255
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 sent size:  4
option:  6 dns-server  192.168.0.2
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 sent size: 14
option: 15 domain-name  guest.an3k.lan
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 sent size:  1
option:252   0a
Sep 26 18:40:30 dns dnsmasq-dhcp[37159]: 1029998759 sent size:  4
option:  3 router  192.168.0.1
Sep 26 18:40:31 dns dnsmasq-dhcp[37159]: 1029998759 available DHCP
range: 192.168.0.200 -- 192.168.0.254
Sep 26 18:40:31 dns dnsmasq-dhcp[37159]: 1029998759 client provides
name: BrigittesiPhone
Sep 26 18:40:31 dns dnsmasq-dhcp[37159]: 1029998759
DHCPREQUEST(eth1.1) 192.168.0.223 50:7a:55:1a:96:62
Sep 26 18:40:31 dns dnsmasq-dhcp[37159]: 1029998759 DHCPNAK(eth1.1)
192.168.0.223 50:7a:55:1a:96:62 no leases left
Sep 26 18:40:31 dns dnsmasq-dhcp[37159]: 1029998759 broadcast response
Sep 26 18:40:31 dns dnsmasq-dhcp[37159]: 1029998759 sent size:  1
option: 53 message-type  6
Sep 26 18:40:31 dns dnsmasq-dhcp[37159]: 1029998759 sent size:  4
option: 54 server-identifier  192.168.0.2
Sep 26 18:40:31 dns dnsmasq-dhcp[37159]: 1029998759 sent size: 14
option: 56 message  6e:6f:20:6c:65:61:73:65:73:20:6c:65:66:74

The file /var/lib/misc/dnsmasq.leases shows two leases active for the
given range (192.168.0.200 - 254), thus it is very confusing why I get
the "no leases left" error.

Dnsmasq 2.68 is running on Debian 14.04. The server has two physical
NICs (one for management VLAN and second for virtual NICs only) and 10
virtual NICs for each VLAN.



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