Help with Setting up Asus RT-N66W

[KC_AsusRTN66W]

a) My ISP sets up a 5-min DHCP lease, and there is a way circumvent every 5 min internet drop by this method.
https://wiki.sonic.net/wiki/Streaming_Media_with_DD-WRT

iptables -I INPUT 2 -p udp --sport 67 --dport 68 -j ACCEPT

But where do I put this in the RT-N66W?

b) Is RT-N66U and RT-N66W identical router but only different in color? I may want to try to apply some custom firmwares like Merlin or others to see if I can get better wifi speed. Right now I am getting about 3.5 Mbps Up and 0.8 upload with a ping between 35 to 90 ms.

 

[RogerSC]

Okay, since that is a firewall rule, it would go in the:

init-firewall

script in /jffs/scripts.

Take a look at RMerlin's asuswrt-merlin wiki, at "User Scripts" and "JFFS", and you'll see that you can put some specifically named shell scripts in a particular place in the /jffs file system (in /jffs/scripts) after enabling and formatting that file system:

https://github.com/RMerl/asuswrt-merlin/wiki

This particular script, init-firewall, will be run when the router is restarted, at the right time to have your iptables statement be run.

And don't forget to put:

#!/bin/sh

as the first line of these scripts.

Also, so far, from what I've seen, the RT-N66W should be able to use the same firmware as the RT-N66U and RT-N66R. But when I went to the Asus site to look, there was no firmware there. You should be able to access the same list of firmware that you get with the RT-N66U, but that apparelntly wasn't set up there earlier today, when I looked. Personally, I would wait until you got better word on this one before trying it.

 

[RMerlin]

Asuswrt-Merlin should work fine on the RT-N66W. There is no RT-N66W target in the source code, meaning that Asus compiles it as an RT-N66U - same they do with the RT-N66R.

 

[KC_AsusRTN66W]

RogerSC & RMerlin, Thank you! I have upgraded to Merlin Build 3.0.0.4.374.35_4 successfully from the official ASUS firmware and so far the stability and wifi range is very good.
It turns out that with the current firmware, I don't experience any dhcp lease issue anymore (unlike my old Netgear router). No more drops while watching HD content online due to dhcp renewal, so I don't need to put that command line into the scripts as suggested by my ISP sonic.net.