Clash Full Tunnel Setup Guide | Generated by AI

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Question: How to configure Clash (using the provided partial config snippet) to achieve full-tunnel-like behavior or better proxy routing?

Answer:

Your current partial Clash config already looks like a typical Clash/Clash Meta/Clash Verge base:

port: 7890                # HTTP proxy port
socks-port: 7891          # SOCKS5 proxy port
allow-lan: true           # Allows other devices on LAN to use this proxy
mode: Rule                # Rule-based routing (recommended over Global for most users)
log-level: info
external-controller: 127.0.0.1:9090
proxies:                  # ← your proxy nodes go here

To make it behave more like full-tunnel mode (everything routed through your VMess/Trojan proxies, similar to a VPN), here are the most common and effective ways to complete/configure it.

TUN mode is the closest to Cisco AnyConnect full-tunnel behavior. It routes all traffic (TCP + UDP) through Clash without apps needing to respect system proxy settings.

Add/enable these lines (Clash Meta / Clash Premium core required):

# Add or modify these
tun:
  enable: true
  stack: system          # or gvisor / mixed (system is fastest on macOS)
  dns-hijack:
    - any:53             # hijack all DNS queries → prevents DNS leaks
  auto-route: true       # automatically add routes to send all traffic through TUN
  auto-detect-interface: true
  mtu: 9000              # optional: higher MTU can improve speed (test 1400–9000)

Full minimal working example with your snippet + TUN:

port: 7890
socks-port: 7891
allow-lan: true
mode: Rule
log-level: info
external-controller: 127.0.0.1:9090

tun:
  enable: true
  stack: system
  dns-hijack:
    - any:53
  auto-route: true
  auto-detect-interface: true

proxies:
  # ← your VMess / Trojan nodes here, example:
  - name: "🐟 漏网之鱼"
    type: vmess
    server: your.server.com
    port: 443
    uuid: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
    alterId: 0
    cipher: auto
    udp: true
    tls: true
    network: ws
    ws-opts:
      path: /yourpath
      headers:
        Host: your.host.com

proxy-groups:
  - name: "PROXY"
    type: select
    proxies:
      - "🐟 漏网之鱼"
      - DIRECT

rules:
  - MATCH,PROXY         # ← this makes everything go through proxy (full tunnel behavior)

Steps to activate TUN on macOS:

  1. In Clash Verge / Mihomo / similar GUI → Settings → TUN Mode → Enable (grant admin rights, install helper once).
  2. Restart Clash.
  3. Set mode to Rule (or Global if you want no exceptions).
  4. Test: curl ipinfo.io should show your proxy IP, even in Terminal / non-browser apps.

Alternative: Stay in System Proxy mode but make it “feel” more like full tunnel

If you don’t want TUN (e.g., avoid admin rights or kernel extension):

# Keep your original settings, add/enhance:
mode: Global              # instead of Rule → forces everything through proxy
# or keep Rule and add strong final rule:
rules:
  - MATCH,PROXY         # everything unmatched goes to proxy

# Optional: force DNS through proxy to avoid leaks
dns:
  enable: true
  ipv6: false           # usually safer to disable IPv6 unless your node supports it
  enhanced-mode: fake-ip
  fake-ip-range: 198.18.0.1/16
  nameserver:
    - 8.8.8.8
    - 1.1.1.1
  fallback:
    - https://1.1.1.1/dns-query

Quick Summary: Which mode to choose?

Goal Recommended Config Change Needs Admin Rights? UDP Support? Bypasses most apps?
True full-tunnel (like AnyConnect) Enable TUN + MATCH,PROXY Yes Yes Yes
Strong proxy for most apps mode: Global or MATCH,PROXY No No (TCP only) Partial
Smart routing (China direct, rest proxy) Keep mode: Rule + good rules No No Partial

Most users in 2026 with VMess/Trojan nodes use TUN mode — it gives the best experience (UDP for games/voice, no app-level proxy issues, full DNS control).

If you share more of your config (especially proxy-groups and rules), I can give a more precise recommendation.

References:

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