I am using the Fedora13 to connect to my embedded board. And I set the Fedora13 ip address with command "ifconfig eth0 192.168.1.101" but each time after I use embedded board's u-boot to ping the computer it says "192.168.1.101 is alive". So it's OK. Then I check my PC with command "ifconfig", eth0's ipv4 address is disappeared. Even I change the connection method to "Manual" and specific the IP, this still happens. I can't figure out how to fix this problem. please help, thx.