Bridge Interface

• Install bridge utils

apt install bridge-utils

• sudo nano /etc/network/interfaces

  auto eth0 
  allow-hotplug eth0 
  iface eth0 inet manual
  
  auto br0 
  iface br0 inet dhcp 
      bridge_ports eth0 
      wpa-driver wired wpa-conf 
      /etc/wpa_supplicant.conf 
      bridge_hw ec:8e:b5:77:3e:e1
      dns-nameservers 127.0.0.1
      post-up route add -net 20.1.43.0 netmask 255.255.255.0 gw 15.17.160.1 
      up route add -net 22.0.0.0 netmask 255.255.255.0 gw 15.17.160.1
      #gateaway 10.23.0.1
  

• Edit /etc/wpa_supplicant.conf

ctrl_interface=/var/run/wpa_supplicant
 ctrl_interface_group=0
 eapol_version=2
 ap_scan=0
 network={
     ssid="BBVA"
     key_mgmt=IEEE8021X
     eap=TLS
     identity="host/WF0006D3.ad.bbva.com"
     ca_cert="/NAC/cacert.pem"
     client_cert="/NAC/cert.pem"
     private_key="/NAC/key.pem"
     private_key_passwd="1234567890"
 }

• Change routes to go through br0

#!/bin/bash
 echo "Removing routes"
 sudo ip r d default via 15.17.160.1 dev br0
 
 echo "Adding routes"
 sudo ip r a 20.1.30.0/24 via 15.17.160.1 dev br0
 sudo ip r a 20.1.40.0/24 via 15.17.160.1 dev br0
 sudo ip r a 20.1.43.0/24 via 15.17.160.1 dev br0
 sudo ip r a 22.0.0.0/16 via 15.17.160.1 dev br0
 sudo ip r a 20.1.32.0/24 via 15.17.160.1 dev br0
 sudo ip r a 192.168.45.0/24 via 15.17.160.1 dev br0