[Dnsmasq-discuss] Listen to two interfaces?

[Markus Bergholz]

On Tue, Nov 30, 2010 at 5:00 PM, richardvoigt at gmail.com
<richardvoigt at gmail.com> wrote:
> On Tue, Nov 30, 2010 at 10:39 AM, Markus Bergholz <markuman at gmail.com> wrote:
>> Ok, i've did this
>>
>>
>> ###
>> log-queries
>> interface=eth0
>> dhcp-range=192.168.1.2,192.168.1.99,12h
>> dhcp-option=3,192.168.1.1
>> resolv-file=/etc/resolv.conf.dnsmasq
>> listen-address=127.0.0.1
>> bind-interfaces
>> cache-size=150
>> interface=wlan0
>> dhcp-range=192.168.1.102,192.168.1.199,12h
>> dhcp-option=3,192.168.1.101
>> ###
>
> What is the IP address and netmask of each interface (eth0 and wlan0)?
>
> Right now, it looks as if you are trying to use the same address block
> on two different networks, which breaks routing.  In such a scenario,
> you must use bridging.  Or, you can use different subnets for devices
> connected via eth0 and those connected via wlan0, and route between
> them.

thx for your fast reply

i want
dhcp-range=192.168.1.2,192.168.1.1,255.255.255.0,12h
for both. but everytime i try to bridge, the hole network on server
side don't work anymore.
so i want to try without bridge.
could
interface=eth0
dhcp-range=192.168.1.2,192.168.1.1,255.255.0.0,12h
interface=wlan0
dhcp-range=192.168.2.2,192.168.2.1,255.255.0.0,12h
work?


> Until you fix routing, the kernel may use the wrong interface to
> transmit packets generated by dnsmasq, which means devices won't get
> leases.
>

hm what did you mean? kernel on server or client?
on server they are grounded i guess

# less /etc/udev/rules.d/10-network.rules
SUBSYSTEM=="net", ATTR{address}=="00:27:19:f2:c1:20", NAME="eth1"
SUBSYSTEM=="net", ATTR{address}=="00:0d:b9:0d:13:a0", NAME="eth0"
...


>>
>> and disable for testing shorewall, it seems that the server deliver
>> one ip adress from dnsmasq, but it don't receive at the client
>> http://nopaste.info/73551f0a00.html
>> in the messages.log from the client dhcpcd is just mentioned in two line.
>> dhcpcd[1315]: version 5.2.8 starting
>> dhcpcd[1315]: wlan0: broadcasting for a lease
>>
>> thats all...any clues?
>>
>> greetings
>> markus
>>
>> On Mon, Nov 29, 2010 at 10:48 PM, Simon Kelley <simon at thekelleys.org.uk> wrote:
>>> On 28/11/10 18:59, Markus Bergholz wrote:
>>>>
>>>> Hi
>>>> is it possible that dnsmasq is listning to two interfaces (without
>>>> bridge-utils!), so that they using same dhcp server?
>>>
>>> It is.
>>>>
>>>> That what my config atm looks like.
>>>>
>>>> interface=eth0
>>>> listen-address=127.0.0.1
>>>> bind-interfaces
>>>> dhcp-range=192.168.1.2,192.168.1.99,12h
>>>> dhcp-option=3,192.168.1.1
>>>> resolv-file=/etc/resolv.conf.dnsmasq
>>>> log-queries
>>>> cache-size=150
>>>>
>>>> just interface=eth0,wlan0
>>>> don't work for me, the client don't get an ip-adress.
>>>>
>>> You need two dhcp-range lines,  for each interface and network.
>>>
>>> HTH
>>>
>>> Simon.
>>>
>>>
>>
>>
>>
>> --
>> icq: 167498924
>> XMPP|Jabber: markuman at jabber.ccc.de
>>
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>>
>



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