Comment forcer Linux à obtenir une nouvelle adresse IP du serveur DHCP?

[Clippy]

The environment is Debian, although the answer will apply to all distributions.

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Source : ,)

[ayi]

You can also use this command:

dhclient -r interface
dhclient interface

Where interface is the device you want to get a new address for. For instance,

dhclient -r eth0
dhclient eth0

The -r flag forces dhclient to first release any leases you have. The second command requests a new lease.

From man dhclient:

   -r     Tell  dhclient  to  release the current lease it has from the 
          server.  This is not required by the DHCP protocol, but some 
          ISPs require their clients to notify the server if they wish 
          to release an assigned IP address.