how do I change the option host-name

[Ralph Blach]

I have dhcp server set up and this is part of a subnet declaration.
subnet 192.168.70.0  netmask 255.255.255.0  {
  range 192.168.70.15  192.168.70.224  ;
  option routers 192.168.70.1;
  option domain-name-servers 192.168.0.8, 192.168.0.8;
  option domain-name "my.domain.com";
  option subnet-mask 255.255.255.0;
  option host-name="foo";
}

How do I modify the "option host-name" declaration so that the
host name which is sent to the client will contain the domain name and ip
address?

Thanks

Chip