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NOTICE:

The maintainer using Xray + side router solution daily.

Other solution will not be updated in time may not work at all.

Use Asuswrt Merlin as a transparent proxy, powered by V2ray

Intro

This project is several scripts for config you ASUS router(merlin based) or Side router(A very old linux laptop) to serve as a transparent forward proxy.

Since 2023-07-16, this project's release version just follow Xray-core's version. Since 2024-01-07, the default deploy use Xray + Reality.

Feature

  1. transparent proxy(you know reason) for all devices connect to your's LAN.
  2. use your router 1080 port (e.g. router.asus.com:1080) as a socks5/http proxy directly.
  3. Ad block.
  4. All additional benefits come from V2Ray.
  5. Xray + XTLS support.

For transparent proxy, current only tproxy mode mode is supported, can be used with fakedns optionally.

NOTICE

redirect mode is possible, check script ./deploy_router_use_direct, dnsmasq serve as LAN DNS server, you only need this if you have a very old ASUS router which not support tproxy. Even, can always select side router + router for any (old) router.

You can always check weather router support TProxy use:

# modprobe xt_TPROXY

Switch proxy mode

You can try switch to use fakedns based transparent proxy after deploy successful like this:

$: ./use_fakedns [email protected]

and switch back use:

$: ./use_auto_proxy [email protected]

Prerequisites

  • A VPS which can visit free internet.
  • A newer router which support Entware, and can run V2ray/xray comfortable. (i use ASUS RT-AC5300, I think OpenWRT should satisfied too after a little hack)
  • Update yours router firmware to Asuswrt-merlin
  • Initialize Entware, please follow this wiki
  • A local ssh client which can login to router use ssh key.
  • If VPS behind a firewall, (e.g. UCloud, Google Cloud), you need enable 22334/22335 tcp/udp port on server manually.
  • A real domain name, if you want to use Xray + XTLS mode.

For better performance, update your's VPS linux kernel to a more recently version (>= 4.9) is encouraged, script can enable BBR for you on this case.

How to use it

Download script from release page

We assume your's linux VPS IP is 34.80.108.8, your's router IP is 192.168.50.1.

Deploy XRay to a linux VPS, serve as both XRay and Shadowsoks server.

Test on CentOS 8, Ubuntu 18.0.4, Debian GNU/linux 9.

By default, use Xray + Reality, you need expose port 22334/22335 for listen on vless/shadowsocks

 ╰─ $ ./deploy_server root@$hk
sending incremental file list
xray_server.json
          2.31K 100%  914.06kB/s    0:00:00 (xfr#1, to-chk=0/1)

......

Run ./deploy_router [email protected] to deploy to router.
Run ./deploy_side_router root@side_router_ip to deploy to side_router.

Deploy client config to router, serve as a transparent proxy.

Previous step will create a new xray client config with binary for you in downloaded_binary/$your_router_arch/. the default router arch is linux-arm-v5 for ASUS AC-5300, you can override with export router_arch=YOUR_ROUTER_ARCH, for the correct Arch name, check https://github.com/XTLS/Xray-core/releases assets

Then, run following command will deploy Xray transparent proxy to your's local ASUS router automatically.

./deploy_router [email protected]

Run following command will deploy files in downloaded_binary/amd64 to a side router.(for me, it is a HP 2530p laptop + CentOS 8)

./deploy_side_router [email protected]

A success deploy on router should be looking like this.

patch_router

deploy code to side router

deploy_side_router

Useful command for router

You can run following command on router

/opt/etc/toggle_proxy.sh is used for disable/enable proxy temporary, for disable completely, you need chmod -x /opt/etc/patch_router

/opt/etc/patch_router basically, just disable proxy, and then enable it.

/opt/etc/update_geodata.sh is used for update geosite data.

/opt/etc/apply_iptables_rule.sh /opt/etc/clean_iptables_rule.sh for enable/clean iptables rule.

/opt/etc/check_google_use_socks5 check xray connection if works. (not work for fakeDNS mode)

/opt/etc/check_google_use_proxy check transparent proxy if works in (side)router. (not work for fakeDNS mode)

troubleshooting step by step

  1. ensure you can ping through your's VPS from local, and can ssh login to VPS server.
  2. ensure you can visit VPS listened port use telnet from VPS locally, e.g. telnet 127.0.0.1 22334
  3. ensure you can visit VPS exposed port outside VPS from local, e.g. telnet {yours.vpsip} 22334, if not, check if port is blocked in yours area with: https://tcp.ping.pe/{your.ip}:22334
  4. ensure your's domain name certificate not expired. (try visit if you have website, or see server xray log)
  5. ensure domain name connect to your ip correct.
  6. check config settings, especially, the vless id, vless port, domain name correct.
  7. test with ./check_google_use_socks5.sh, ensure it work before test transparent proxy.
  8. check the system time in local/remote all correct.
  9. Create a issue

Contributing

  • Bug reports
  • Patches:
    • Fork on Github.
    • Create your feature branch: git checkout -b my-new-feature.
    • Commit your changes: git commit -am 'Add some feature'.
    • Push to the branch: git push origin my-new-feature.
    • Send a pull request :D.