load balance with 2 or more red NIC with endian firewall

The objective of this small howto is to make a load balance of the internet traffic between 2 or more red nics with STATIC IP (is a must)
1. Configure 1 red nic using the web interface
2. Open a ssh connexion as root to the firewall and enter to the folder /var/efw/uplinks (“cd /var/efw/uplinks”)
3. run the command “cp -p -r ./main ./link2 (if you have more red nics repeat this step but with ./link3 ./link4 ./link… you get the point)
4. Enter to each one of the copied folders and edit all of the parameter in the file “settings” except DEFAULT_GATEWAY, leave that one blank
5. Do the previous step with the folder main ( /var/efw/uplinks/main)
6. Recheck that all parameter for all of your links are set OK, and that all DEFAULT_GATEWAY fields are blank (is a must or else it wont balance the traffic)
7. Enter the directory /var/efw/inithooks (“/var/efw/inithooks”)
8. add to the files start.local updatered.active.local updatered.inactive.local updatered.local and updatewizard.local

route del default
route del default
route del default
route del default
ip route add default equalize scope global \
nexthop via <gateway link1> dev <iface link1> weight 1 \
nexthop via <gateway link2> dev <iface link2> weight 1 \
nexthop via <gateway link3> dev <iface link3> weight 1 \
.
.
.
NOTE: remove the ” \ ” in the last line
NOTE: i modify ALL those files because i do not know witch one endian use to generate the routing tables.

9. Restart your endian firewall
10. Wait 5 minutes or so an log to the firewall
11. Check your routes with the command “ip route”, it shoud show you all the gateways that are using in a round robin balance for the packets that goes out from your network to the internet.
12. HAVE FUN

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• Distribution Release: Endian Firewall 2.1