.. cfgcmd:: set interfaces {{ var0 }} <interface> {{ var2 }} {{ var3 }} {{ var5 }} {{ var6 }} dhcp-options client-id <description> :rfc:`2131` states: The client MAY choose to explicitly provide the identifier through the 'client identifier' option. If the client supplies a 'client identifier', the client MUST use the same 'client identifier' in all subsequent messages, and the server MUST use that identifier to identify the client. Example: .. code-block:: none set interfaces {{ var0 }} {{ var1 }} {{ var2 }} {{ var4 }} {{ var5 }} {{ var7 }} dhcp-options client-id 'foo-bar' .. cfgcmd:: set interfaces {{ var0 }} <interface> {{ var2 }} {{ var3 }} {{ var5 }} {{ var6 }} dhcp-options host-name <hostname> Instead of sending the real system hostname to the DHCP server, overwrite the host-name with this given-value. Example: .. code-block:: none set interfaces {{ var0 }} {{ var1 }} {{ var2 }} {{ var4 }} {{ var5 }} {{ var7 }} dhcp-options host-name 'VyOS' .. cfgcmd:: set interfaces {{ var0 }} <interface> {{ var2 }} {{ var3 }} {{ var5 }} {{ var6 }} dhcp-options vendor-class-id <vendor-id> This option is used by some DHCP clients to identify the vendor type and possibly the configuration of a DHCP client. The information is a string of bytes whose contents are specific to the vendor and are not specified in a standard. The vendor-class-id option can be used to request a specific class of vendor options from the server. Example: .. code-block:: none set interfaces {{ var0 }} {{ var1 }} {{ var2 }} {{ var4 }} {{ var5 }} {{ var7 }} dhcp-options vendor-class-id 'VyOS' .. cfgcmd:: set interfaces {{ var0 }} <interface> {{ var2 }} {{ var3 }} {{ var5 }} {{ var6 }} dhcp-options no-default-route Only request an address from the DHCP server but do not request a default gateway. Example: .. code-block:: none set interfaces {{ var0 }} {{ var1 }} {{ var2 }} {{ var4 }} {{ var5 }} {{ var7 }} dhcp-options no-default-route .. cfgcmd:: set interfaces {{ var0 }} <interface> {{ var2 }} {{ var3 }} {{ var5 }} {{ var6 }} dhcp-options default-route-distance <distance> Set the distance for the default gateway sent by the DHCP server. Example: .. code-block:: none set interfaces {{ var0 }} {{ var1 }} {{ var2 }} {{ var4 }} {{ var5 }} {{ var7 }} dhcp-options default-route-distance 220 .. cfgcmd:: set interfaces {{ var0 }} <interface> {{ var2 }} {{ var3 }} {{ var5 }} {{ var6 }} dhcp-options reject <address> Reject DHCP leases from a given address or range. This is useful when a modem gives a local IP when first starting. * **address** can be specified multiple times, e.g. 192.168.100.1 and/or 192.168.100.0/24 Example: .. code-block:: none set interfaces {{ var0 }} {{ var1 }} {{ var2 }} {{ var4 }} {{ var5 }} {{ var7 }} dhcp-options reject 192.168.100.0/24 .. cfgcmd:: set interfaces {{ var0 }} <interface> {{ var2 }} {{ var3 }} {{ var5 }} {{ var6 }} dhcp-options user-class <string> This option is used by some DHCP clients as a way for users to specify identifying information to the client. This can be used in a similar way to the vendor-class-identifier option, but the value of the option is specified by the user, not the vendor. Example: .. code-block:: none set interfaces {{ var0 }} {{ var1 }} {{ var2 }} {{ var4 }} {{ var5 }} {{ var7 }} dhcp-options user-class VyOS