[Dnsmasq-discuss] DCHP server not assign IP addresses
rune.kock at gmail.com
Tue Nov 18 01:32:30 GMT 2008
On Tue, Nov 18, 2008 at 00:05, Troy Piggins <troy at piggo.com> wrote:
> My dnsmasq 2.41 doesn't seem to be assigning DHCP IP addresses.
> Been running the server for some time, but mainly for the DNS
> side of things. The IP addresses for most machines on my network
> are static, so hasn't been a problem. But I'm trying to connect
> to a NAS (WD My Book World Edition) which I believe needs a DHCP
> server to get an IP address, and I can't interface with it to set
> it up without one.
> Any ideas?
1) Check dnsmasq's entries in syslog: does it show any DHCP activity?
2) Check your firewall settings. The following is from dnsmasq's FAQ:
The first thing to check is the broadcast address set for the
ethernet interface. This is normally the adddress on the connected
network with all ones in the host part. For instance if the
address of the ethernet interface is 192.168.55.7 and the netmask
is 255.255.255.0 then the broadcast address should be
192.168.55.255. Having a broadcast address which is not on the
network to which the interface is connected kills things stone
The second potential problem relates to firewall rules: since the ISC
daemon in some configurations bypasses the kernel firewall rules
entirely, the ability to run the ISC daemon does not indicate
that the current configuration is OK for the dnsmasq daemon.
For the dnsmasq daemon to operate it's vital that UDP packets to
and from ports 67 and 68 and broadcast packets with source
address 0.0.0.0 and destination address 255.255.255.255 are not
dropped by iptables/ipchains.
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