Edit your /etc/iftab file and ensure that there are two lines like:
eth0 mac 00:02:b3:96:a1:94 arp 1 eth1 mac 00:13:21:f3:e2:9e arp 1
Edit your /etc/iftab file and ensure that there are two lines like:
eth0 mac 00:02:b3:96:a1:94 arp 1
eth1 mac 00:13:21:f3:e2:9e arp 1