[Ubuntu-PH] networking problem

[jan gestre]

guys,

i recently added a new lan card (eth1) to my kubuntu 5.04 box because
my rj-45  doesn't fit in built-in lan card (eth0), i've change thru
ifconfig my network setting, eth0 whose former ip address
192.168.100.88 to 192.168.100.10 and my new eth1 to 192.168.100.88.
problem is when i restart my box, the old configuration always appear
that is eth0 = 192.168.100.88, my eth1 is not up and has no ip
assigned. i edited the /etc/network/interfaces and added the
following:
map eth1
iface eth1 inet static
        address 192.168.100.10
        netmask 255.255.255.0
        network 192.168.100.0
        broadcast 192.168.100.255
        dns-nameservers 192.168.100.88 192.168.100.69 192.168.100.10
        dns-search ubuntu.cxm

when i start my kubuntu box, eth0 and eth1 now has the same IP address
assigned. where did i go wrong? what files do i have to change to get
what i want that is to assign eth0 192.168.100.10 and eth1
192.168.100.88.

TIA