Strange network situation

Hi all, I have a debian 7 box with 2 network cards eth0 and eth1. eth1 is set to static ip: a.b.c.149 (in /etc/network/interfaces) eth0 is dhcp The box boots it connects to the network and both nics (eth0 and eth1) gets same ip a.b.c.149. and traffic goes through eth0. instead of eth1. (from node ip: a.b.c.1). The arp table on a.b.c.1 sees eth0 with ip ...149. where as its actually eth1 thats set to ip ...149. If eth1 is connected - no traffic goes through. Any ideas?? how do I make sure the right nic always has the right ip everywhere?? Why does eth0 get the same ip as eth1? Daniel. -- dan062 <dan062@yahoo.com.au>