auto eth0
iface eth0 inet static
  address 192.168.2.155
  gateway 192.168.2.51
  netmask 255.255.255.0
  dns-nameservers 192.168.2.180
  dns-domain exaple.com

auto eth1
iface eth1 inet static
  address 192.168.2.156
  netmask 255.255.255.0

sudo sysctl -w net.ipv4.conf.all.arp_announce=1
sudo sysctl -w net.ipv4.conf.all.arp_ignore=2
sudo sysctl -w net.ipv4.conf.all.rp_filter=0

sysctl -w net.ipv4.conf.all.arp_ignore=1
sysctl -w net.ipv4.conf.all.arp_announce=2
sysctl -w net.ipv4.conf.all.arp_filter=1

net.ipv4.conf.default.rp_filter = 2

sudo sysctl -w net.ipv4.conf.all.arp_announce=1
sudo sysctl -w net.ipv4.conf.all.arp_ignore=2
sudo sysctl -w net.ipv4.conf.all.rp_filter=2