I have a routerboard 600 with 3 wlan card.
all 3 card has been bridged with the ethernet.
Every card has about 20 wireless station user in WDS mode.
They connect to the cards because they want to connect via PPPoE connection in one hop (an edge router with PPPoE server) earlier.
The problem is I have an unexpected traffic over each wireless cards. I sniffed the traffic instead of one of my users and I saw that I have netbios-ns traffic on my interface very much.
The question is how am I able to drop this traffic when they are all bridge together ?!
a) Dropping the traffic does no good for interface utilization. Just because you drop it doesn’t mean the packets don’t arrive at the interface.
b) http://en.wikipedia.org/wiki/NetBIOS_over_TCP/IP: ports 137, 138, and 139.
These station are MikroTik devices? If the answer is YES, you can simply filter all NetBios traffic before it even leaves the clients, and reaches your RB600. Additionally, it is good to know that you do not need even an IP address on the interface that PPPoE server is running on for proper functionality of PPPoE. So, you can simply drop ALL TCP/IP traffic except those that is required for administer the client devices.
Well, there is no way that MikroTik can handle this traffic, as it already reach it. You can block it from further penetration to your network, but it will still take some of your bandwidth
I’m not very familiar with NanoStation. Maybe there is some firewall possibility, but you have to check it. Good luck
