AX3600: Upgrading ShellClash to Clash-Meta Core for Hysteria 2 Support

The root process and ShellClash installation for this router are well-documented here: https://qust.me/post/ax3600_shellclash/

I won’t repeat those steps. Instead, I’ll focus on how to replace the Clash-Meta core to support modern proxy protocols like Hysteria 2 and TUIC.

1. Download Clash-Meta

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Download the appropriate version (arm64): Clash.Meta Releases. I personally use the Alpha version for the latest features.

2. The Storage Challenge

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Here’s the problem: The unzipped Clash-Meta binary is nearly 20MB, but the AX3600’s root partition usually has less than 8MB left after installing ShellClash.

Solution: UPX Compression Download UPX and compress the binary: upx -9 clash

This reduces the size to under 7MB, making it easy to fit into the router’s storage.

root@XiaoQiang:~# du -sh /data/clash/clash
6.6M    /data/clash/clash
root@XiaoQiang:~# /data/clash/clash -v
Clash Meta alpha-096bb8d linux arm64 with go1.19.5 Mon Jan 23 06:08:40 UTC 2023

3. Cleaning Up Logs

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The default firmware has a habit of filling up /data/usr/log with junk files, which can cause network lag. It’s best to set up a cron job to clear it regularly.

Add this to your crontab (crontab -l):

*/3 * * * * rm -rf /data/usr/log/*  # Clear junk logs every 3 minutes
30 3 * * 1~7 /data/clash/start.sh restart >/dev/null 2>&1 # Restart Clash daily at 3:30 AM

4. Performance Tip

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Since Hysteria can be CPU-intensive, I recommend limiting the downlink speed (e.g., to 100 Mbps) to keep the router load manageable.

Created: 2023-01-24 Updated: 2026-01-04