I am sorry for resending the email again, but it seemed that you received un-clear graph, so I changed it. Dear Fellows, I am developing a Wi-Fi project and I got stuck in my progress when I tried to logo on to a domain controller through my Linux gateway box. In fact I have the following depicted scenario: +-----------------+ |Client | |User name: | |Password: | |Domain | |eth0:192.168.0.3 | +-----------------+ | | LAN2: 192.168.0/24 | +-----------------------+ |eth1:192.168.0.1 | |Gate Way | |eth0:192.168.1.232 | +-----------------------+ | | LAN1: 192.168.1/24 | +-----------------------+ |eth0:192.168.1.231 | |Domain | |Controller | +-----------------------+ When I try to logon to the DC by using this above scenario I get the following message "The system cannot log you on because the domain <xxxx> is not available". It seems that the client is not able to see the domain controller the my linux gateway. Note: I wrote my own firewall by using iptables, and I tried my best to overcome this problem but I couldn't. So any idea or support I can find from your side, your cooperation is highly appreciated. Regards Bassam --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.516 / Virus Database: 313 - Release Date: 9/1/2003