Required options for using dhclient with layer3
You must configure the DHCP client program dhclient to use it on Linux® on IBM® Z with layer3.
- Run the DHCP client with an option that instructs the DHCP server
to broadcast its response to the client.
Because the OSA-Express adapter in QDIO mode forwards packets to Linux based on IP addresses, a DHCP client that requests an IP address cannot receive the response from the DHCP server without this option.
- Run the DHCP client with an option that specifies the client identifier
string.
By default, the client uses the MAC address of the network interface. Hence, without this option, all Linux instances that share the OSA-Express adapter in QDIO mode would also have the same client identifier.
See the documentation for dhclient about
how to select these options.
You need no special options for
the DHCP server program, dhcp.
You need no special options for using dhcp.