Proxy EAP packets between interfaces on a Ubiquiti Networks EdgeRouter™ Lite
Inspired by 1x_prox as posted here:
http://www.dslreports.com/forum/r30693618-
AT&T Residential Gateway Bypass - True bridge mode!
- Copy
vyatta-eap-proxy.debto~ - Install with
sudo dpkg -i ~/vyatta-eap-proxy.deb
Here's an excerpt of my EdgeRouter configuration:
set interfaces ethernet eth0 description WAN
set interfaces ethernet eth0 duplex auto
set interfaces ethernet eth0 firewall in name WAN_IN
set interfaces ethernet eth0 firewall local name WAN_LOCAL
set interfaces ethernet eth0 speed auto
set interfaces ethernet eth0 vif 0 address dhcp
set interfaces ethernet eth0 vif 0 description 'WAN VLAN 0'
set interfaces ethernet eth0 vif 0 dhcp-options default-route update
set interfaces ethernet eth0 vif 0 dhcp-options default-route-distance 210
set interfaces ethernet eth0 vif 0 dhcp-options name-server update
set interfaces ethernet eth0 vif 0 firewall in name WAN_IN
set interfaces ethernet eth0 vif 0 firewall local name WAN_LOCAL
set interfaces ethernet eth0 vif 0 mac 'aa:bb:cc:dd:ee:ff'
set interfaces ethernet eth1 address 192.168.1.1/24
set interfaces ethernet eth1 description LAN
set interfaces ethernet eth1 duplex auto
set interfaces ethernet eth1 speed auto
set interfaces ethernet eth2 description 'AT&T router'
set interfaces ethernet eth2 duplex auto
set interfaces ethernet eth2 speed auto
set service nat rule 5010 description 'masquerade for WAN'
set service nat rule 5010 outbound-interface eth0.0
set service nat rule 5010 protocol all
set service nat rule 5010 type masquerade
set service eap-proxy wan-interface eth0
set service eap-proxy router-interface eth2
set system offload ipv4 vlan enable
Update the MAC address for eth0 vif 0 to that of your AT&T router, or let eap_proxy do it with the --set-mac option. I prefer to set it in my router config.
Note the set system offload ipv4 vlan enable command or you'll have horrible routing performance.
Don't forget to update the rest of your config to reference eth0.0 as your WAN interface as needed.
I also have IPv6 working via 6rd. Here's the relevant configuration:
set interfaces tunnel tun0 6rd-prefix '2602:300::/28'
set interfaces tunnel tun0 6rd-default-gw '::12.83.49.81'
set interfaces tunnel tun0 address '2602:30x:xxxx:xxxx::1/60'
set interfaces tunnel tun0 description 'AT&T 6rd tunnel'
set interfaces tunnel tun0 encapsulation sit
set interfaces tunnel tun0 firewall in ipv6-name WAN6_IN
set interfaces tunnel tun0 firewall local ipv6-name WAN6_LOCAL
set interfaces tunnel tun0 local-ip YY.YY.YY.YY
set interfaces tunnel tun0 multicast disable
set interfaces tunnel tun0 ttl 255
set service dhcp-server use-dnsmasq enable
set service dns forwarding options enable-ra
set service dns forwarding options 'dhcp-range=::1,constructor:eth1,ra-names,86400'
set system offload ipv6 forwarding enable
The 6rd-prefix and 6rd-default-gw should be the same for all AT&T customers that are using 6rd. I've heard some areas may be on native dual-stack, but my area is not. The local-ip is your DHCP-issued WAN IP. The tun0 address is your 6rd delegated prefix. It is based on your WAN IP and can be computed with this bit of python:
python -c 'import sys;a,b,c,d=map(int,sys.argv[1].split("."));print "2602:30%x:%x%02x%x:%x%02x0::1/60" % (a>>4,a&15,b,c>>4,c&15,d)' 1.2.3.4
2602:300:1020:3040::1/60
If you aren't already using dnsmasq for DHCP, you might want to use radvd instead. See the example here (it's the router-advert section).
It may be possible to configure the tun0 interface via DHCPv6; I haven't tried.
Good luck. It works for me on my EdgeRouter Lite running EdgeOS v1.9.1.1.
To build the debian package, run the following on a host system:
debuild -us -uc -rsudo