[Voyage-linux] bridge wlan eth [ 0.7.5 ]

[Punky Tse]

Hi Davide,

This is easy:

In /etc/network/interfaces (br0 request IP from dhcp):
auto br0
iface br0 inet dhcp
         bridge_ports eth0 wlan0

auto eth0
iface eth0 inet manual

auto wlan0
iface wlan0 inet manual
         hostapd /etc/hostapd/hostapd.wlan0.conf

In /etc/hostapd/hostapd.wlan0.conf, make sure you have line:

bridge=br0


On 1/9/2011 20:01, themrorange at gmail.com wrote:
> Hi,
>
> I'm having some troubles configuring an access point and bridging the wifi to the ethernet.
> The AP is inside a LAN network and gets the ethernet IP from the DHCP server. At the same time it has a static wifi network to manage.
>
> I'm facing two main problems:
>
> 1) when I bring up the wifi interface (wlan0) the machine cannot reach internet anymore.
>
> 2) when I bring up the bridge interface (br0) the eth0 get confused with the DHCP server and is not reachable anymore. From netstat I can see that the default gateway becomes the br0 gateway for the eth0 interface and the wlan0 loses the ip.
>
> I think that I should add some route telling to the wlan0 how to use the br0 to get the eth0 and the other way around but I cannot figure it out. I'm a bit confused regarding the bridge interface usage. In witch subnet it supposed to be? does it has to be in a separated one? I'm googoling but I haven't get it yet.
>
> Please, can you have a look to my /etc/network/interfaces below?
>
> Many thanks
>
> Davide
>
>
>
> # Bridge
> auto br0
> iface br0 inet static
>          address 192.168.254.2
>          netmask 255.255.255.0
>          network 192.168.254.0
>          broadcast 192.168.254.255
>          gateway 192.168.254.1
>          bridge_ports eth0 wlan0
>
>
> auto eth0
> iface eth0 inet dhcp
>
>
> # Master WLAN infrastructured WPA2
> auto wlan0
> iface wlan0 inet static
>          hostapd /etc/hostapd/hostapd.wlan0.conf
>          address 192.168.2.1
>          netmask 255.255.255.0
>          network 192.168.2.0
>          gateway 192.168.2.1
>          broadcast 192.168.2.255
>
>
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-- 

Regards,
Kim-man "Punky" Tse

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