Lost IP traffic when blocking netbios traffic

RouterOS Wireless Networking
1

Hello Guys :slight_smile:

I have a bridged network with WDS enabled. I have a very weird issue when I try blocking netbios traffic in my backbone. When I start to block everything is OK but after some hours I lose IP connection. Even the radios are associated but I can not ping them, also in the winbox I can´t see the remainder of the network


The rules to block netbios are the following

/ ip firewall filter
add chain=forward protocol=tcp dst-port=135-139 action=drop comment=“netbios
over tcp ip” disabled=no
add chain=forward protocol=udp dst-port=135-139 action=drop comment=“netbios
over tcp ip” disabled=no

I am sure that blocking that ports is the problem because when I disable the rules everything is OK.

I know I should use routing instead of bridging but still I can´t figure out how to do it, i mean I don´t know routing protocols like OSPF or RIP

Thanks

2

Hello, Should I have any problem if a block traffic to broadcast ip 192.168.1.255 in my backbone?

Does anybody else have the same issue in the above post?