Reply To: ASUS – DSL-AC88U / DSL-AC3100 Firmwares (beta's) etc. Looks like a new Beta Release for the DSL-AC88U is available, this version has Telnet enabled and improved 2.4GHz wifi (I believe). DSL-AC88U_v9.10.06_build581_debug.w.zip https://www.asuswebstorage.com/navigate/s/604D61534F2541D1B3CE1CC031A697E4Y UK Sentinel In a completely…

[UK Sentinel]

@jetspeed – Ok, I believe the following will block all port 53 requests from LAN to WAN, but never tested this on the DSL-AC88U.

Go to Firewall > Network Services Filter to block port 53 TCP and UDP. as Network Services Filter only impacts LAN to WAN traffic and this should create entries in the iptables automatically.

For ASUS, I believe all ports from WAN to LAN are closed by default, so ports are only opened by LAN traffic heading to default gateway , (UPnP – Port Forwarding) etc.

Let us know how this goes ?

 

 

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   port53-block.png
   

In a completely sane world, madness is the only freedom (J.G.Ballard).

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