Gateworks Cambria + Routerboard RB 133 + Wireless

fsjunior · Wed Nov 18, 2015 6:12 pm

Hi guys,

I'm trying to get a Gateworks Cambria (with OpenWRT) to connect with a RB 133 via wireless. I configurated the RB 133 [1] (5.26 RouterOS) in ap bridge mode and the Cambria as client via Luci.

The Cambria connects to RB133. But a strange thing happens: If I configure the wireless to use the same bridge of the ethernet ports in cambria, there is a lot of error messages and it constantly disconnects.

00:01:13 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:13 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:13 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:13 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:13 wireless,info wlan1: data from unknown device YY:YY:YY:YY:YY:YY, sent deauth
00:01:13 wireless,info wlan1: data from unknown device YY:YY:YY:YY:YY:YY, sent deauth
00:01:13 wireless,info wlan1: data from unknown device YY:YY:YY:YY:YY:YY, sent deauth
00:01:13 wireless,info wlan1: data from unknown device YY:YY:YY:YY:YY:YY, sent deauth
00:01:14 wireless,info AA:BB:BB:BB:BB:BB@wlan1: reassociating
00:01:14 wireless,info AA:BB:BB:BB:BB:BB@wlan1: disconnected, ok
00:01:14 wireless,info AA:BB:BB:BB:BB:BB@wlan1: connected
00:01:14 wireless,info wlan1: data from unknown device ZZ:ZZ:ZZ:ZZ:ZZ:ZZ, sent deauth
00:01:14 wireless,info wlan1: data from unknown device ZZ:ZZ:ZZ:ZZ:ZZ:ZZ, sent deauth
00:01:14 wireless,info wlan1: data from unknown device ZZ:ZZ:ZZ:ZZ:ZZ:ZZ, sent deauth
00:01:14 wireless,info wlan1: data from unknown device ZZ:ZZ:ZZ:ZZ:ZZ:ZZ, sent deauth
00:01:14 wireless,info AA:BB:BB:BB:BB:BB@wlan1: reassociating
00:01:14 wireless,info AA:BB:BB:BB:BB:BB@wlan1: disconnected, ok
00:01:14 wireless,info AA:BB:BB:BB:BB:BB@wlan1: connected
00:01:14 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:14 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:14 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:14 wireless,info wlan1: data from unknown device WW:WW:WW:WW:WW:WW, sent deauth
00:01:14 wireless,info wlan1: data from unknown device WW:WW:WW:WW:WW:WW, sent deauth
00:01:14 wireless,info wlan1: data from unknown device WW:WW:WW:WW:WW:WW, sent deauth
00:01:14 wireless,info wlan1: data from unknown device WW:WW:WW:WW:WW:WW, sent deauth
00:01:14 wireless,info AA:BB:BB:BB:BB:BB@wlan1: reassociating
00:01:14 wireless,info AA:BB:BB:BB:BB:BB@wlan1: disconnected, ok
00:01:14 wireless,info AA:BB:BB:BB:BB:BB@wlan1: connected
00:01:14 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:14 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:14 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:14 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:14 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:14 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:14 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:14 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:15 wireless,info AA:BB:BB:BB:BB:BB@wlan1: reassociating
00:01:15 wireless,info AA:BB:BB:BB:BB:BB@wlan1: disconnected, ok
00:01:15 wireless,info AA:BB:BB:BB:BB:BB@wlan1: connected
00:01:15 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:15 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:15 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth
00:01:15 wireless,info wlan1: data from unknown device XX:XX:XX:XX:XX:XX, sent deauth

Note that there is different Mac addresses. I found that these mac are mac from ethernets in my network! I think that Cambria is trying to forward (via the bridge interface) the data from ethernet to wireless but for some reason the routeros is refusing to receive.

If I disconnect cambria from my ethernet network, the connection becomes "stable" (as there is no packet from other sources being transmitted).

Here the configuration of the routeros:

[admin@MikroTik] > interface wireless print detail
Flags: X - disabled, R - running 
 0  R name="wlan1" mtu=1500 mac-address=00:30:1A:46:19:59 arp=enabled interface-type=Atheros AR5413 mode=bridge ssid="cambria" frequency=2422 band=2ghz-b channel-width=20mhz scan-list=default wireless-protocol=any antenna-mode=ant-a wds-mode=disabled 
      wds-default-bridge=bridge1 wds-ignore-ssid=no bridge-mode=enabled default-authentication=yes default-forwarding=yes default-ap-tx-limit=0 default-client-tx-limit=0 hide-ssid=no security-profile=default compression=no 
[admin@MikroTik]

From openwrt:

root@OpenWrt:~# cat /etc/config/wireless 

config 'wifi-device' 'radio1'
	option 'type' 'atheros'
	option 'macaddr' '00:30:1a:46:12:2c'
	option 'diversity' '0'
	option 'txantenna' '1'
	option 'rxantenna' '1'
	option 'disabled' '0'
	option 'chanbw' '10'
	option 'channel' '3'
	option 'txpower' '0'

config 'wifi-iface'
	option 'encryption' 'none'
	option 'device' 'radio1'
	option 'ssid' 'cambria'
	option 'mode' 'sta'
	option 'network' 'lan'

root@OpenWrt:~#

My objective is to connect Cambria and RB 133 via wireless in a bridge mode, as a ethernet LAN, where every packet from ethernet from RB or will be retransmitted to cambria and vice versa.

So, I have some questions:

There is a know incompatibility with openwrt/cambria with routeros/routerboard?

Also, if not, someone have a hint of how can I configure both wireless? Maybe, there is a way to enable a "promiscuous" mode in routerboard? I don't understand very well the 802.11, but maybe a way to set the wireless from OpenWRT to use the mac address from card instead of ethernet devices?

Regards,

PS. I don't know if this is important, but I use DL915 card from doodlelabs.

[1] I know that RB 133 is obsolete, actually I will use a 493G in production. The 133 is only for test purpose.

fsjunior · Mon Nov 30, 2015 10:05 pm

I made some progress configuring both Cambria and RB.

I realized what I did wrong in the first place: I must create another interface to wireless connection. If I bridge ethernet and wireless, the data packets from ethernet will be forwarded "as is" to wireless, with wrong MAC Address.

So, nice! I made a connection between both and the connection becomes stable.

Also, I configurated an IP in wlan from RB 133 (running as AP) and set a static IP to wwan interface in Cambria. So, now I have another problem:

I can ping the IP in RouterOS/RB from cambria, but from RB I cannot find the cambria IP.

Let me explain with this incredible good looking diagram:

Let me explain with this diagram:

[X]---[AP]-( )-[STA]---[Y]

AP is the RB 133 and STA is Cambria client. They're connected via wifi. I can make STA ping AP and X. If I configure relayd in cambria, I can make even Y ping AP and X.

See:

root@OpenWrt:~# ping -I br-wwan 192.168.0.130
PING 192.168.0.130 (192.168.0.130): 56 data bytes
64 bytes from 192.168.0.130: seq=0 ttl=64 time=2.382 ms
64 bytes from 192.168.0.130: seq=1 ttl=64 time=1.654 ms
^C
--- 192.168.0.130 ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max = 1.654/2.018/2.382 ms
root@OpenWrt:~#

But I cannot make X or AP ping STA or Y (see attachment).

I looked everywhere but I cannot figure what is happening.

Someone can help me?

Gateworks Cambria + Routerboard RB 133 + Wireless

Gateworks Cambria + Routerboard RB 133 + Wireless

Re: Gateworks Cambria + Routerboard RB 133 + Wireless

Who is online