OpenWRT Secrets to Kill Bufferbloat and Stabilize Ping

This video shows how to fix high latency by creating a new interface inside OpenWRT and attaching SQM directly to it for stronger control over bufferbloat. You will learn how to isolate your gaming traffic give it priority and keep your ping stable even when your network is under heavy load. If you get spikes delay rubber banding or unstable matches this guide will help you build a cleaner faster path for your device.
#OpenWRT #SQM #LowLatency #PingFix #Bufferbloat #GamingRouter #NetworkOptimization #mt6000

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This is the script I recently replaced with a universal one that works with any game.
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#!/bin/sh

LAN_IP="YOUR DEVICE IP HERE"

add_rule() {
uci -q delete firewall.$1
uci add firewall rule
uci set firewall.@rule[-1].name="$1"
uci set firewall.@rule[-1].src='lan'
uci set firewall.@rule[-1].dest='wan'
uci set firewall.@rule[-1].proto="$2"
uci set firewall.@rule[-1].src_ip="$LAN_IP"
uci set firewall.@rule[-1].dest_port="$3"
uci set firewall.@rule[-1].target='DSCP'
uci set firewall.@rule[-1].set_dscp="$4"
}

############################
CONSOLE CORE (PS / XBOX)
############################

add_rule "CONSOLE_TCP_3074" tcp 3074 CS6
add_rule "CONSOLE_UDP_3074" udp 3074 CS4
add_rule "CONSOLE_UDP_88" udp 88 CS4
add_rule "CONSOLE_UDP_500" udp 500 CS4
add_rule "CONSOLE_UDP_3544" udp 3544 CS4
add_rule "CONSOLE_UDP_4500" udp 4500 CS4
add_rule "CONSOLE_UDP_HIGH" udp 49152-65535 CS4

############################
STEAM (ALL FPS / BR)
############################

add_rule "STEAM_TCP_MAIN" tcp 27015-27050 CS6
add_rule "STEAM_UDP_GAME" udp 27000-27100 CS4
add_rule "STEAM_UDP_RELAY" udp 3478-3481 CS4
add_rule "STEAM_UDP_P2P" udp 4380 CS4

############################
BATTLE.NET (COD / OW / D4)
############################

add_rule "BNET_TCP_1119" tcp 1119 CS6
add_rule "BNET_TCP_3724" tcp 3724 CS6
add_rule "BNET_TCP_6113" tcp 6113 CS6
add_rule "BNET_UDP_3478" udp 3478 CS4
add_rule "BNET_UDP_4379" udp 4379 CS4
add_rule "BNET_UDP_4380" udp 4380 CS4

############################
RIOT (VALORANT / LOL)
############################

add_rule "RIOT_TCP_2099" tcp 2099 CS6
add_rule "RIOT_TCP_5223" tcp 5223 CS6
add_rule "RIOT_UDP_7000_8000" udp 7000-8000 CS4

############################
EA / UNREAL / UNITY FPS
############################

add_rule "EA_TCP_3659" tcp 3659 CS6
add_rule "EA_UDP_3659" udp 3659 CS4
add_rule "EA_UDP_14000_14016" udp 14000-14016 CS4
add_rule "UE_UDP_7777_7790" udp 7777-7790 CS4

############################
FALLBACK REALTIME GAMING
############################

add_rule "GAME_TCP_MISC" tcp 1024-65535 CS6
add_rule "GAME_UDP_MISC" udp 1024-65535 CS4

uci commit firewall
/etc/init.d/firewall restart

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