alex a écrit :
On Tuesday 04 May 2004 10:48,begin   Serge Marelli wrote:
  
Hi,

I normally access the Net via the cable.
Sometimes, when I boot my computer, I don't have an IP address.  This is
usually because for one reason or the other I've unplugged my
cable-modem.  So I plug the modem back in and... nada... still no IP
(even if I wait).
So I usually have to reboot :(

My question : is there a way to force the system to recognize that the
network (cable-modem) plugged to eth0 is back up and that it should
request an IP address (via DHCP)?

Would something like

~ # ifconfig eth0 down
~ # ifconfig eth0 up

work?
    
Of course
  
No. Ifconfig down up just stops the interface and restarts it. It does not triggers the dhcp client.
Or simply restart the network:
/etc/rc.d/network restart
  
This should do the trick.
Al

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