[Dnsmasq-discuss] Tagging DHCP request (network-id) by
the incoming interface - possible?
dl at cs.fau.de
Thu Sep 15 09:27:13 BST 2005
>> You might be able to keep the more traditional scheme with dnsmasq
>> listening on the two interfaces without losing the bridge provided
>> that you can divide your subnet into two.
>> It's best to illustrate this with an example.
>> Assume subnet is 192.168.1.xx (netmask 255.255.255.0)
>> and the bridge interface has address 192.168.1.10
>> Now also configure the lan and wifi interfaces as
>> 192.168.1.1/255.255.255.128 - lan
>> 192.168.1.129/255.255.255.128 - wifi
>> you can now configure dnsmasq to do dhcp on those two interfaces with
>> whatever policies you like, provided that lan clients are in the first
>> half of the address range and wifi ones in the second.
>> [...many more helpful explanations ...]
> That sounds indeed like a possible solution! I will try it out as soon
> as possible and post my results to the list.
Just to keep on the track for the archive:
Until now, I did not succeed. The reason seems to be a problem with the
OpenWRT firmware and or the fact that the lan interface is actually a
The Asus WL-500 Deluxe uses a Broadcom 6-port switch which ports are
logically assigned to two virtual networks (one WAN port, four LAN ports
and one internal port for both) For details take a look at (link may wrap):
The virtual lan network is represented by the interface vlan0. The
problem is that if I try to assign this interface a subnet mask that is
different from 255.255.255.0, the router freezes.
ifconfig vlan0 192.168.1.2 netmask 255.255.255.128
-> system hangs and does not anwser pings
(Note that I am connected via the wlan interface while doing this, so it
should not be the problem that I kick myself out of the net)
This is definitely not a dnsmasq related problem. I just want to mention
it here for the archives. I posted about the issue on the OpenWrt forum,
however, did not receive an anwser yet.
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