[Dnsmasq-discuss] DHCP for multiple IP ranges with dnsmasq

[Helmut Friederici]

Hello Simon,

thanks for your reply.

Obviously the problems have gone two days later without having done 
something. Maybe the lease times where too long and I was too 
impatient.

I reduced the lease times to only a few minutes but later I will set them 
to some more practical values again.

But for now time healed any wounds.

Thanks again, Helmut


Am Montag, 12. Januar 2015, 20:32:39 schrieb Simon Kelley:
> A couple of things to start with:
> 
> First, tell us the version of dnsmasq you're using.
> Second, add
> 
> log-dhcp
> 
> to the configuration file, let you clients attempt to get an address,
> and see what was logged. Amongst other things, all the tags that
> dnsmasq calculated for the client will be shown, so we can see if the
> problem is wrong tags, or something else.
> 
> 
> Cheers,
> 
> Simon.
> 
> On 12/01/15 15:06, Helmut Friederici wrote:
> > Hello, this is my first post in this mailing list and I am a newbie
> > to dnsmasq. So please be a bit patient with me.
> > 
> > I think I am not the first having the following problem and there
> > is a solution, but I haven't seen it yet. I want to setup multiple
> > IP ranges for different ethernet-enabled devices. Many of them
> > should get fixed addresses by dnsmasq, others should get real
> > dynamic addresses. What I want is the following:
> > 
> > - defining several DHCP-Ranges with and without tagnames, e.g.:
> > DHCP-RANGE=tag:external,<IP-Start>,<IP- End>,255.255.255.0,8h
> > DHCP-RANGE=tag:local1,<IP-Start>,<IP- End>,255.255.255.0,1h
> > DHCP-RANGE=tag:local2,<IP-Start>,<IP- End>,255.255.255.0,1h
> > DHCP-RANGE=tag:local3,<IP-Start>,<IP- End>,255.255.255.0,1h
> > DHCP-RANGE=<IP-Start>,<IP-End>,255.255.255.0,2h - defining 
several
> > DHCP-Hosts with and without fixed IPs, names, but all existing
> > range tags DHCP-HOST=<MAC1>,set:external,<Name1>
> > DHCP-HOST=<MAC2>,set:external,<IP2>,<Name2>
> > DHCP-HOST=<MAC3>,set:local1,<IP3>
> > DHCP-HOST=<MAC4>,set:local1,<IP4>
> > DHCP-HOST=<MAC5>,set:local2,<IP5>,<Name5>
> > DHCP-HOST=<MAC6>,set:local3,<IP6> - using partly specified MAC
> > addresses (vendor specific) so that devices with matching MAC
> > addresses get IP addresses of DHCP range "local2"
> > DHCP-HOST=11:22:33:*:*:*,set:local2 - using different gateways - or
> > more specific suppress internet access
> > DHCP-OPTION=tag:local1,3,127.0.0.1
> > DHCP-OPTION=tag:local2,3,127.0.0.1
> > DHCP-OPTION=tag:local3,3,127.0.0.1 DHCP-OPTION=3,<Gateway-
IP>
> > 
> > What I expected I expected the host with <MAC1> will get an IP from
> > the range tagged as "external", but it gets one of the untagged
> > range. Other PCs previously having an IP in the local1 range but
> > reconfigured to get an external one remain on the earlier address
> > and do not have access to the internet any more. Dnsmasq runs on
> > Red Hat Enterprise Linux 6.6, After modifying the config file I
> > stopped the network and dnsmasq services, cleared the arp cache 
and
> > restarted the services as follows, but the problem remains. service
> > network stop service dnsmasq stop ip neigh flush dev eth1 service
> > dnsmasq start service network start
> > 
> > Who can give me some advice? Or tell me where I'an wrong.
> > 
> > Thanks in advance
> > 
> > I tried to stop the network service and the dnsmasq service, mod
> > 
> > 
> > 
> > _______________________________________________ 
Dnsmasq-discuss
> > mailing list Dnsmasq-discuss at lists.thekelleys.org.uk
> > http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
> 
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