https://blog.margrop.net/en/tag/openwrt/ Recent content in OpenWrt on Margrop Blog Hugo en-US Sat, 30 May 2026 09:00:00 +0800 https://blog.margrop.net/en/post/bufferbloat-sqm-cake-home-network-fix/ Sat, 30 May 2026 09:00:00 +0800 https://blog.margrop.net/en/post/bufferbloat-sqm-cake-home-network-fix/ <blockquote> <p><strong>The Short Version</strong></p> <p>Your router has a hidden enemy called <strong>Bufferbloat</strong> — and it&rsquo;s likely the reason your games lag even when your bandwidth test shows perfect speeds. When a router buffers too aggressively, download traffic fills up the queue and real-time traffic (games, video calls) gets stuck waiting behind thousands of buffered packets. Your speedtest stays at 950Mbps, but your game ping explodes from 50ms to 500ms.</p> <p>In this article, I walk through the complete diagnosis and resolution of a Bufferbloat problem in a real home network environment using a multi-WAN iKuai gateway + ImmortalWrt soft router setup. The fix: deploying <strong>SQM (Smart Queue Management) + Cake qdisc</strong> on the ImmortalWrt layer, which reduced latency under full-speed download from ~300ms+ down to a stable ~12ms with zero configuration complexity.</p> <p>All internal IP addresses, device hostnames, and network topologies have been sanitized for privacy.</p> </blockquote> https://blog.margrop.net/en/post/zhuan-immortalwrt-pang-lu-you-install-config/ Mon, 11 May 2026 21:10:55 +0800 https://blog.margrop.net/en/post/zhuan-immortalwrt-pang-lu-you-install-config/ <blockquote> <p>This article is a full English translation of Egg Targaryen&rsquo;s &ldquo;ImmortalWrt旁路由安装与配置&rdquo;. The original article is published under the <code>CC BY-NC-SA 4.0</code> license. The operation order and screenshots are preserved, with minor formatting adjustments for this site.</p> </blockquote>