I have to configure an ubuntu hardy server network interface.

The service hoster told me that this is the network data for the machine:

IP Range:  111.111.200.74 to 111.111.200.78
Netmask:   255.255.255.248
Broadcast: 111.111.200.79
Gateway:   111.111.200.73
Subnet:    111.111.200.72/29

I am only using the first IP address. I will update the /etc/hosts file with 111.111.200.74, but I am still unsure how the /etc/network/interfaces file should be. This is my plan:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
  address   111.111.200.74
  netmask   255.255.255.248
  network   111.111.200.???
  broadcast 111.111.200.79
  gateway   111.111.200.73

As you can see I don't know how to build the network line. How would I calculate the data for the network line and what is the result?

(I changed the first 2 octets of the subnet, they are not "111.111" in the real setup.)