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Re: Bridging with firestarter and dhcp3-server.[SOLVED]

Daryl Styrk wrote:

I'm attempting to bridge wlan0 with eth0.  I've done this successfully
in the past with firestarter and dhcp3-server.  However I'm running into
some issues trying to set this up now.

What I have done in the past is set eth0 static, and enabled internet
connection sharing in firestarter.  Which ends up with the following
configuration files.

cat /etc/network/interfaces

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug eth0

iface eth0 inet static
address 192.168.0.1
netmask 255.255.255.0

auto eth0

$ cat /etc/dhcp3/dhcpd.conf
# DHCP configuration generated by Firestarter
ddns-update-style interim;
ignore client-updates;

subnet 192.168.0.0 netmask 255.255.255.0 {
        option routers 192.168.0.1;
        option subnet-mask 255.255.255.0;
        option domain-name-servers 10.0.1.1;
        option ip-forwarding off;
        range dynamic-bootp 192.168.0.100 192.168.0.254;
        default-lease-time 21600;
        max-lease-time 43200;
}

After a restart of networking, firestarter, and dhcp3-server all was
well.  This has worked on 3 separate instances.

However, now after restarting all services and attempting to request an
address on eth0 from another machine it fails with "No working leases in persistent database - sleeping." I can see the interface eth0 here on the laptop and while requesting the address the lights are not flashing like they usually would which leads me to believe the bridge/dhcp server isn't working.
I'm a bit lost where to start, I've looked through the logs for any failurs, errors etc. 

# grep error /var/log/messages
Mar 21 13:38:16 t61 kernel: [51443.770985] firestarter[13057]: segfault at 65726952 ip b72b1452 sp b6965300 error 6 in libglib-2.0.so.0.1600.6[b725b000+b4000] Mar 21 13:53:12 t61 kernel: [52343.228568] firestarter[18697]: segfault at 65726952 ip b739c452 sp b5dc0300 error 6 in libglib-2.0.so.0.1600.6[b7346000+b4000] Mar 21 14:07:56 t61 kernel: [ 764.930775] firestarter[7807]: segfault at 117808 ip b71b0ebc sp b5dff17c error 4 in libc-2.7.so[b7142000+155000] Mar 21 15:21:03 t61 kernel: [ 3080.508699] firestarter[11594]: segfault at 6e657651 ip b71cdf61 sp bfe6fc04 error 4 in libc-2.7.so[b715f000+155000]
I have no idea about segfaults. I've never encountered one that I was aware of. I have since restarted everything again after finding these in the logs to see if it would be reproduced, but they were not. 

Daryl




Replying to myself...
Turns out above steps for bridging/dhcp still work fine. It seems the Debian installer was refusing to request an address from the laptop/dhcp server. However, once I moved the machine to a wire off the modem, it picked up an address just fine. Then of course when the install was finished, there is no problem requesting an address from the laptop/dhcp server. Strange. 

Any ideas why that would be?

Daryl
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