Hi

I have a device with two LAN ports, LAN1 is Intel 82579LM and LAN2 is Intel 82574. After update the driver(devnp-e1000.
so and enum file), both LAN can be found through ifconfig which are wm0 and wm1. 

However, the LAN ports cannot work concurrently, if both LAN are connected to Ethernet cable with dhcp setting, both LAN
 can get IP but only LAN1 can be ping by remote device, LAN2 cannot be ping. Meanwhile, the system log would keep 
showing "d6:fe:7e:f5:d8:db on wm1 tried to write ARP info 176.14.15.254 on wm0". 

If I change it to static IP with different subnet, both ports can be ping but the "<some MAC> on wm1 tried to write ARP 
info <some IP> on wm0" still shows up.

What should I do to solve this problem?

Thanks for help.