Hi,
Here's my problem and my current understanding:
I have 3 interfaces in my WAP box, external, internal and wireless.
I'd like to have MAC filtering for addresses with access to the external
network, but allow guests to connect to the wireless network to help
with copying files around in the same room.
I need to run dhcpd on both the internal interface and the wireless
interface as guests might not have wireless. ALL clients on the wireless
network MUST use DHCP to obtain their address.
My dhcpd.conf is as follows:
--
shared-network LOCAL-NET {
option domain-name example.org;
option domain-name-servers 192.168.1.1;
subnet 192.168.1.0 netmask 255.255.255.0 {
option routers 192.168.1.1;
range 192.168.1.32 192.168.1.127;
}
host laptop {
hardware ethernet 00:de:ad:be:ef:00;
fixed-address 192.168.1.10;
}
}
shared-network WIRELESS-NET {
option domain-name example.org;
option domain-name-servers 192.168.1.1;
subnet 192.168.2.0 netmask 255.255.255.0 {
option routers 192.168.2.1;
range 192.168.2.32 192.168.2.127;
}
host laptop-wireless {
hardware ethernet 11:de:ad:be:ef:11;
fixed-address 192.168.2.10;
}
}
--
So, the problem is that dhcpd listens on both ends of the bridge that
would be used for MAC filtering. DHCPDISCOVER requests are acknowledged
on both interfaces, and the wireless client will receive a random
address from either the internal or wireless network. laptop does not
consistently receive its fixed address. I understand why this is so, as
the DHCPDISCOVER/DHCPOFFER packets cannot be filtered in BPF. HOWEVER, I
have been unable to find dhcpd configuration which will prevent the
request from being processed on both interfaces. If I turn off the
bridge, I lose the MAC filtering. Is there any way I can have the setup
I desire? Not all registered MAC addresses will have a fixed-address, so
I can allow a guest access to the external network by simply adding
their MAC address to the bridge.
Thanks,
Brian
