[COLUG] iptables oddities

Ian Wilson ian.m.wilson at gmail.com
Wed Dec 1 16:43:37 EST 2004


Good afternoon folks;

I've attempted to get my firewall working on my suse box for about 2
days, with no success.  I currently have a three NIC firewall set up,
with eth0 being my public side, eth1 being my wireless (Linksys B and
G AP's through ethernet bridging), and eth2 being my wired.

basic setup:  
eth0 - dhcp acquired address from cable modem
eth1 - 10.5.10.1 (to be issuing 10.5.10.10-200 in addresses)
eth2 - 10.50.10.1 (to be issuing 10.50.10.50-200 in addresses)

For some odd reason, I can't get my wireless clients to get acquire a
dhcp address when it's plugged into eth1.  If I move the ap's to my
switch carrying eth2, I'll get an ip address from the dhcp pool for
eth2, which leads me to believe that everything is set correctly on
the switch side.

The parts in question in my dhcpd.conf file look like:

subnet 10.50.10.0 netmask 255.255.255.0 {
        default-lease-time 28800;
        option domain-name-servers 65.24.192.171;
        option domain-name-servers 10.50.10.1;
        option domain-name "wired.home.iwcg.net";
        option routers 10.50.10.1;
        range 10.50.10.10 10.50.10.200;
        authoritative;
}
subnet 10.5.10.0 netmask 255.255.255.0 {
        default-lease-time 28800;
        option domain-name-servers 65.24.192.171;
        option domain-name-servers 10.5.10.1;
        option domain-name "wireless.home.iwcg.net";
        option routers 10.5.10.1;
        range 10.5.10.5 10.5.10.200;
        authoritative;
}

if I do an ifconfig, the ip addresses are correct, I'm just stumped.  

Where's a good place to start looking to see what the problem is? 
(Also, on a second note, my dhcp server seems to die after about 6
hours, but I can't find anything in the syslog about it)

Thanks;

Ian
-- 
[insert witty comment here]

Ian Wilson
ian.m.wilson at gmail.com
http://blog.iwcg.net/users/ian/



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