how to restart network without rebooting

[Andrew Falanga <afalanga@linora.com>]

Hello everyone,

     I'd like to know, how can I tell the system to re-read the network 
config's without doing a shutdown -r now.  I've been reading through man 
init, man halt and so forth, but nothings really jumped off the screen. 
 I tried a kill -s HUP 1, for restarting init, but that didn't do it. 
 So, what must I do?

Andy