Hi All, My requirement is as below, - I have de create a bridge on linux machine (kernel 2.6) and i have 2 physical interfaces (eth0 & eth2) - I have a scheme like this Windows DHCP DHCP Client Linux Bridge Server ------- ----------------- ---------- | eth0 |----------------| eth1 eth0|--------------------10.255.0.1/24-| eth0 | | (dhcp)| | (br0=eth0+eth1) | | | ------- ----------------- ---------- First Scenario : Fixed ip adresse of br0 in my Linux Bridge (192.168.0.1) Results : * Windows Client obtain an ip adress from dhcp server (10.255.0.2) (dhcp requests pass correctelly throught Linux Bridge). *And i can manage my Linux Bridge from a Windows PC (using http://192.168.0.1). All is good and this is my goal. Second Scenario : I switch the br0 to dhcp (not fixed IP) Results : * My Linux bridge obtain an ip adress (br0=10.255.0.3)..all right * But, i can't access anywher from my Windows client (i can't obtain an ip) * A tcpdump on my Linux Bridge, i see DHCP REQUEST arrived from Windows PC on eth1 interface but not repeated on eth0 interface..:(. MY goal is that the Windows can obtain an IP from the dhcp server, and i will able to administer my Linux Bridge (a simple box-router that a developed myself). Thanks a lot for your help. Hamza F