how to set these options ?!!!
 

how to set these options in kernel config file :

CONFIG_VETH
CONFIG_PCNET32
CONFIG_STAGING

Those config items can be found in:
CONFIG_VETH: Device Drivers > Network Device Support > Virtual ethernet pair device

CONFIG_PCNET32: Device Drivers > Network Device Support > Ethernet (10 or 100Mbit) > EISA, VLB, PCI and on board controllers > AMD PCnet32 PCI Support

CONFIG_STAGING: Device Drivers > Staging drivers

You can easily find the location of any config item by using the help system of the respective kernel configuration utility (menuconfig, xconfig, gconfig etc). Simply enter the config item in the search box.

Hope it helps.

I've rebuilt my kernel a number of time and yet I've always missed this search feature, very nice to know, thanks!