auto eth0
iface eth0 inet static
        address 192.168.198.100
        netmask 255.255.255.0
        gateway 192.168.198.2

the network restarted but when i look in ifconfig the ip address is not the same as the the adressin the interfaces file

debian:/home/andy# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:0C:29:18:84:A6
          inet addr:192.168.198.129  Bcast:192.168.198.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe18:84a6/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1491 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1280 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1425877 (1.3 MiB)  TX bytes:167489 (163.5 KiB)
          Interrupt:169 Base address:0x2000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:560 (560.0 b)  TX bytes:560 (560.0 b)