WireGuard Client Module Documentation

Table of Contents

1. Navigation & Access
2. Screenshots & Visual Interface
3. 🎯 User Roles & Key Capabilities
4. Module Overview (Technical)
5. Module Overview (Commercial/Business)
6. Module Overview (End User/Administrator)
7. Configuration Sections
8. Model Context Protocol (MCP) AI Integration
9. Common Scenarios & Examples
10. Limitations & Important Notes
11. Troubleshooting Tips
12. Glossary

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Navigation & Access

To access the WireGuard VPN module:

1. Log in to the Ring2All Web Portal (https://<domain-or-ip>/login).
2. In the left navigation sidebar, expand Administration.
3. Under Network, click WireGuard VPN (/admin/network/wireguard).
4. Upload or manage WireGuard configuration files (wg0.conf), monitor interface state, verify internal tunnel addressing (10.100.0.15/24), and validate remote peer endpoints (vpn-core.ring2all.com:51820).

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Screenshots & Visual Interface

High-Performance WireGuard Cryptographic Tunnel

Interface dashboard showing kernel-level WireGuard status, local virtual tunnel IP address, peer endpoint gateway, allowed IP subnets, and active configuration loader.

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🎯 User Roles & Key Capabilities

Role	Access Level	Responsibilities & Capabilities
PBX Super Administrator	Full Access (RW)	Upload wg0.conf configuration files, control kernel tunnel services (wg-quick@wg0), and manage private encryption keys.
Carrier Interconnect Engineer	Full Operations (RW)	Configure peering endpoints, restrict AllowedIPs subnets for SIP provider interconnects, and verify kernel UDP transmission rates.
DevOps & Infrastructure Lead	Monitoring (RO)	Monitor cryptographic handshake freshness (< 180 seconds), verify rx/tx byte counters, and detect MTU fragmentation.
AI Platform Copilot / MCP Agent	Diagnostic & Telemetry (RO)	Execute get_wireguard_client_status to evaluate tunnel health, verify last handshake timestamp, and inspect peer endpoints.

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1. Module Overview (Technical)

What Is WireGuard Client?

WireGuard Client is a modern site-to-site VPN module that connects the server to another network via a secure WireGuard tunnel. WireGuard is known for its high performance, state-of-the-art cryptography, and simplicity compared to older VPN protocols like OpenVPN or IPsec.

Architecture

┌─────────────────────────────────────────────────────────────────┐
│              WireGuard Client Architecture                     │
├─────────────────────────────────────────────────────────────────┤
│                                                                 │
│  Local PBX Server / SBC                                         │
│  ┌──────────────────────────────────────────────────────────┐   │
│  │                                                          │   │
│  │  WireGuard Interface (wg0)                               │   │
│  │  ┌────────────────────────────────────────────────────┐  │   │
│  │  │                                                    │  │   │
│  │  │  .conf Configuration File                          │  │   │
│  │  │  ├─ Private Key: [Hidden]                          │  │   │
│  │  │  ├─ Local IP: 10.10.10.5/24                        │  │   │
│  │  │  ├─ Peer Endpoint: vpn.datacenter.com:51820        │  │   │
│  │  │  ├─ Peer Public Key: XyZ123...                     │  │   │
│  │  │  └─ AllowedIPs: 10.10.10.0/24                      │  │   │
│  │  │                                                    │  │   │
│  │  └────────────────────────────────────────────────────┘  │   │
│  │                                                          │   │
│  │  Status: ● Connected                                     │   │
│  │  Latest Handshake: 1 minute, 23 seconds ago              │   │
│  │                                                          │   │
│  └──────────────────────────────────────────────────────────┘   │
│       │                                                         │
│       │ Encrypted UDP Tunnel                                   │
│       │                                                         │
│       ▼                                                         │
│  ┌──────────────────────────────────────────────────────────┐   │
│  │        Remote Network / Data Center                      │   │
│  │                                                          │   │
│  │  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐      │   │
│  │  │ WireGuard   │  │ SIP Trunk   │  │ Database    │      │   │
│  │  │ 10.10.10.1  │  │ 10.0.0.10   │  │ 10.0.0.20   │      │   │
│  │  └─────────────┘  └─────────────┘  └─────────────┘      │   │
│  │                                                          │   │
│  └──────────────────────────────────────────────────────────┘   │
│                                                                 │
└─────────────────────────────────────────────────────────────────┘

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2. Module Overview (Commercial/Business)

Business Value

WireGuard Client provides blazing fast secure site connectivity:

OpenVPN	WireGuard
High overhead	Low overhead
Complex code base	Minimal code base
Slower roaming	Fast IP roaming
Slower throughput	Near wire-speed

Use Cases

1. Carrier Interconnect
   • Connect to a SIP trunk provider securely over the public internet.
2. Multi-Site PBX
   • Link multiple Ring2All instances together securely.
3. Database Replication
   • Secure the traffic between the application server and a remote PostgreSQL cluster.

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3. Module Overview (End User/Administrator)

What Can You Do?

• Upload a standard WireGuard .conf file.
• Bring the tunnel up (Connect) or down (Disconnect).
• Monitor connection status, data transfer, and handshake times.
• Verify peering connectivity.
• Delete the configuration securely.

Quick Tips

[!TIP] Check Handshake: The “Latest Handshake” is the absolute best indicator of a working WireGuard tunnel. If the handshake is missing or older than 5 minutes, traffic is not flowing.

[!WARNING] AllowedIPs Caution: Be very careful with AllowedIPs = 0.0.0.0/0. This will route ALL server traffic through the VPN, potentially cutting off your administrative SSH/Web access!

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4. Configuration Sections

Configuration Management

Field	Description
Connection Name	An internal identifier for the VPN connection
Upload	Drag and drop a .conf file generated by your WireGuard Server
Connect / Disconnect	Controls the wg-quick@wg0 system service
Delete	Removes the configuration and shuts down the tunnel

Status Section

Field	Description
Status	Connected/Disconnected
Interface	Usually wg0
Public Key	The cryptographic identity of the peer
Endpoint	The remote IP address and UDP port of the VPN server
Latest Handshake	Time elapsed since the last successful cryptographic exchange
Transfer	Amount of data received and sent

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Model Context Protocol (MCP) AI Integration

The WireGuard Client module connects to the Model Context Protocol (MCP), granting the Platform Copilot and autonomous operations agents real-time access to kernel-level cryptographic tunnel diagnostics.

Available MCP Tools

Tool Name	Scope	Description
get_wireguard_client_status	Kernel WireGuard Telemetry (RO)	Queries the WireGuard client tunnel status (wg0 interface), peer endpoint, last handshake timestamp, and transfer counters (rx/tx bytes).

Tool Schemas & Payloads

get_wireguard_client_status

{
  "name": "get_wireguard_client_status",
  "description": "Queries the WireGuard client tunnel status (wg0 interface), peer endpoint, last handshake timestamp, and transfer counters (rx/tx bytes).",
  "parameters": {
    "type": "object",
    "properties": {}
  }
}

Realistic Execution Response:

{
  "success": true,
  "data": {
    "wireguard": {
      "interface": "wg0",
      "hasConfig": true,
      "connected": true,
      "vpnIp": "10.100.0.15/24",
      "serverEndpoint": "vpn-core.ring2all.com:51820",
      "lastHandshake": "2026-09-08T10:59:12Z",
      "bytesReceived": 48392014,
      "bytesSent": 39102940,
      "health": "healthy"
    }
  }
}

Bilingual Natural Language Prompt Examples

English Prompts

• “Copilot, verify if the WireGuard client tunnel is connected and check the last handshake time.”
• “Show the current transfer counters (bytes sent and received) on interface wg0.”
• “Is the remote WireGuard server endpoint reachable and what VPN IP is assigned?”

Spanish Prompts

• “Copilot, verifica si el túnel WireGuard está activo y cuándo ocurrió el último apretón de manos (handshake).”
• “Muestra el total de bytes transmitidos y recibidos a través de la interfaz wg0.”
• “¿Cuál es la IP asignada dentro del túnel WireGuard y cuál es el endpoint del servidor?”

Enterprise Safeguards & Execution Boundaries

1. Kernel Status Isolation: get_wireguard_client_status executes sudo wg show wg0 dump strictly in read-only mode to capture peer telemetry without altering routing or crypto tables.
2. Private Key Masking: Client private keys are kept secure inside /etc/wireguard/wg0.conf with 0600 permissions and never returned in MCP tool outputs.
3. Health Threshold Detection: Tunnels with a handshake older than 180 seconds or no handshake at all are flagged with health: connecting/idle rather than healthy.

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5. Common Scenarios & Examples

Scenario 1: Uploading a Provider Config

1. Obtain a .conf file from your SIP Trunk provider.
2. Ensure the AllowedIPs restricts routing to just the provider’s IP subnets (e.g., 10.20.30.0/24).
3. Click Upload Configuration and drop the file.
4. Click Connect.
5. Wait a few seconds and click Refresh Status. Ensure the “Latest Handshake” shows a recent time.

Scenario 2: Troubleshooting a Broken Link

1. If the Status is “Connected” but you cannot reach the remote server.
2. Check the “Latest Handshake”. If it says No handshake, the server cannot reach the remote endpoint.
3. Verify that your server’s outbound UDP traffic to the Endpoint port is not blocked by another firewall.
4. Verify that the endpoint’s public IP is correct.

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6. Limitations & Important Notes

Technical Notes

[!NOTE] Stateless Design: WireGuard is technically stateless. The interface being “Up” (Connected) does not guarantee the peer is reachable. Always check the Handshake.

[!CAUTION] Conflicting Routes: If the AllowedIPs in your WireGuard config conflicts with your local LAN routes, you may lose connectivity to your local gateway.

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7. Troubleshooting Tips

Command Line Verification (Server)

# Check WireGuard status
sudo wg show

# View the applied configuration
sudo cat /etc/wireguard/wg0.conf

# Check routing table
ip route show

# Ping across the tunnel (assuming remote IP is 10.10.10.1)
ping 10.10.10.1

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8. Glossary

Term	Definition
Handshake	Cryptographic key exchange proving both sides are authenticated and online
AllowedIPs	The IP subnets that WireGuard will route through the tunnel and accept from the peer
Endpoint	The public IP and Port of the remote WireGuard server
wg-quick	The helper utility that sets up WireGuard interfaces and routing tables

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Documentation last updated: September 2026