[OpenWrt-Devel] Question for configuring OVS on OpenWRT

[Alexandru Ardelean]

On Wed, Nov 29, 2017 at 1:00 PM, Nam Bong Ha <over3025 at gmail.com> wrote:
> Hi, all
>
> I am using an OpenWRT device that is configured to use ovs.
>
> I want to communicate between wireless devices and wired devices.
> Is the following connection possible?
>
>
>                                      ONOS
>                                          l
>                                          l
>                                          l
>                                          l
> Device1(lan)---------(lan)OpenWRT-OVS(wireless)-------(wireless)Device2
>
>
>
>
> I tried connecting the controller to OpenWRT (ovs).
> However, ssh connection was disconnected at the moment of connection.
>
> root at Controller$ ssh root@[OpenWRT IP]
> root at OpenWrt:~# ovs-vsctl show
> 0ca359f7-74f-420f-b0a5-dfbb6f79
>     Bridge br-lan
>         Port "eth0.1"
>             Interface "eth0.1"
>         Port br-lan
>             Interface br-lan
>                 type: internal

I don't know if OVS works with Linux bridges.
In the past it didn't ; it was also recommended to disable the Linux
bridge kmod.

Maybe instead of trying to use br-lan, add all interfaces that are in
the br-lan bridge directly to OVS.

OVS bridges should work just like Linux bridges.
There are some things that are slightly neater with OVS bridges though.


> root at OpenWrt:~# ovs-vsctl set-controller br-lan  tcp:[ONOS IP]:6633
>
>
> The following is the configuration file for openwrt.
>
> /etc/config/wireless
> config wifi-device 'radio0'
>     option type 'mac80211'
>     option macaddr ':ae:99'
>     list ht_capab 'LDPC'
>     list ht_capab 'SHORT-GI-20'
>     list ht_capab 'SHORT-GI-40'
>     list ht_capab 'TX-STBC'
>     list ht_capab 'RX-STBC1'
>     list ht_capab 'DSSS_CCK-40'
>     option disabled '0'
>     option country 'KR'
>     option hwmode '11ng'
>     option htmode 'HT20'
>     option txpower '11'
>     option channel '1'
>
> config wifi-iface
>     option device 'radio0'
>     option mode 'ap'
>     option ssid 'OpenWrt'
>     option encryption 'none'
>
>
> /etc/config/network
> config interface 'loopback'
>     option ifname 'lo'
>     option proto 'static'
>     option ipaddr '127.0.0.1'
>     option netmask '255.0.0.0'
>
> config interface 'lan'
>     option type 'bridge'
>     option proto 'static'
>     option netmask '255.255.255.0'
>     option _orig_ifname 'eth0.1 radio0.network1'
>     option _orig_bridge 'true'
>     option ipaddr '192.168.30.1'
>     option ifname 'eth0.1 tap0 wlan0'
>
> config interface 'wan'
>     option ifname 'eth0.2'
>     option _orig_ifname 'eth0.2'
>     option _orig_bridge 'false'
>     option proto 'static'
>     option ipaddr '192.168.0.230'
>     option netmask '255.255.254.0'
>     option gateway '192.168.0.1'
>
> config switch
>     option name 'switch0'
>     option reset '1'
>     option enable_vlan '1'
>     option enable_learning '0'
>
> config switch_vlan
>     option device 'switch0'
>     option vlan '1'
>     option ports '0t 2 3 4 5'
>     option vid '1'
>
> config switch_vlan
>     option device 'switch0'
>     option vlan '2'
>     option ports '0t 1'
>     option vid '2'
>
> Thank you:)
> Have a good day :)
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