Reticulum Network Implementation for NeXuS Medusa Proxy

Overview

Implemented Reticulum cryptographic mesh networking support for NeXuS Medusa Proxy. Reticulum provides a decentralized, encrypted communication layer that complements Tor/I2P/Yggdrasil networks.

Implementation Date: 2026-02-13 Status: COMPLETED

Files Created

1. /home/user/git/medusa-proxy/proxy/reticulum.py (4.9KB)

Purpose: Service class for managing Reticulum Network Stack Daemon instances

Key Features: - Follows the established Service class pattern - Supports multiple Reticulum instances (configurable via RETICULUMS env var) - Runs rnsd (Reticulum Network Stack Daemon) in service mode - Configures as participating transport node (helps route traffic for others) - Comprehensive health checking via process, config, and log verification

Configuration: - Base port: 4965 (increments for multiple instances) - UDP port: 4965 + instance_id (for local network discovery) - TCP port: 4242 + instance_id (for incoming connections) - Config directory: /var/lib/reticulum/instance-{id}/ - Log file: /var/log/reticulum/reticulum-{id}.log

Class Structure:

class Reticulum(Service):
    executable = "/home/user/.local/bin/rnsd"

    def __init__(self, enable_transport=True, udp_port=None, tcp_port=None)
    def start()           # Start rnsd daemon
    def stop()            # Graceful shutdown
    def working()         # Health check (process + logs)

Transport Node Philosophy: Every NeXuS node runs with enable_transport = Yes, meaning: - Routes traffic for other Reticulum peers - Helps build the mesh network - Embodies "Together Everyone Achieves More" principle

2. /home/user/git/medusa-proxy/templates/reticulum.conf (1.3KB)

Purpose: Jinja2 template for generating Reticulum configuration files

Key Configuration:

[reticulum]
enable_transport = Yes              # Participate as routing node
share_instance = Yes                # Share with local programs
instance_name = nexus-medusa-{id}   # Unique instance identifier
respond_to_probes = Yes             # Allow connectivity testing

[interfaces]
[[Default Interface]]
  type = AutoInterface              # Auto-discover local nodes
  enabled = True

[[UDP Interface]]
  type = UDPInterface               # Broadcast discovery
  listen_port = {{ udp_port }}

[[TCP Server Interface]]
  type = TCPServerInterface         # Accept incoming connections
  listen_port = {{ tcp_port }}

Template Variables: - instance_id - Unique instance number - udp_port - UDP listening port for discovery - tcp_port - TCP listening port for connections

Integration

Updated Files

proxy/__init__.py:

from .reticulum import Reticulum

__all__ = [..., "Reticulum", ...]

Architecture

Port Allocation

Service Type	Base Port	Instance 0	Instance 1	Instance 2
Management	4965	4965	4966	4967
UDP	4965	4965	4966	4967
TCP	4242	4242	4243	4244

Directory Structure

/var/lib/reticulum/
  └── instance-0/
      └── config              # Generated from template
  └── instance-1/
      └── config
/var/log/reticulum/
  ├── reticulum-0.log
  └── reticulum-1.log
/var/run/reticulum/
  ├── 4965.pid
  └── 4966.pid

Health Checking

The working property performs comprehensive health verification:

1. Process Check: Verify PID exists and process is running
2. Config Check: Ensure configuration directory exists
3. Log Check: Parse log file for initialization success markers
4. Looks for "started" or "transport instance" keywords
5. Confirms daemon initialized properly

Return Values: - True - Fully operational and routing - False - Not running or initialization failed

Log Output:

🌐 Reticulum instance 0 healthy (PID 12345) - routing for the network
   UDP: 4965, TCP: 4242, Config: /var/lib/reticulum/instance-0

Environment Variables

Variable	Default	Description
RETICULUMS	1	Number of Reticulum instances to run

Usage Example

from proxy import Reticulum

# Create single Reticulum instance (transport node)
rtn = Reticulum()

# Check health
if rtn.working:
    print("Reticulum mesh network operational!")

# Stop gracefully
rtn.stop()

Multi-Instance Deployment

from proxy import Reticulum

# Deploy multiple Reticulum instances for redundancy
instances = [Reticulum() for _ in range(3)]

# Health check all
for rtn in instances:
    if rtn.working:
        print(f"Instance {rtn.id} routing")

Network Topology

Each Reticulum instance enables three interfaces:

1. AutoInterface - Automatically discovers nearby Reticulum nodes via multicast
2. UDP Interface - Broadcasts presence and accepts broadcast discovery
3. TCP Server Interface - Accepts incoming connections from remote nodes

This creates a resilient mesh where nodes automatically discover and connect to each other.

NeXuS Philosophy Integration

"Together Everyone Achieves More"

Every Reticulum instance is configured as a transport node (enable_transport = Yes), meaning: - It routes packets for other nodes, even if they're not the final destination - It helps build routing tables for the entire network - It participates in mesh healing when connections fail - It makes the network stronger simply by existing

This aligns perfectly with NeXuS principles: - Sane - Simple daemon, proven cryptography - Simple - One class, minimal configuration - Secure - End-to-end encryption by default - Stealthy - Mesh routing obscures packet origins - Beautiful - Elegant self-organizing topology

Testing

Import Test:

cd /home/user/git/medusa-proxy
python3 -c "from proxy import Reticulum; print('Success!')"

Daemon Test:

# Verify rnsd is available
which rnsd
# /home/user/.local/bin/rnsd

# Check rnsd version
rnsd --version

Next Steps (Future Enhancements)

1. Mesh Status Endpoint - Expose Reticulum network topology via API
2. Bandwidth Metrics - Track bytes routed for other nodes
3. Identity Management - Persist Reticulum identities across restarts
4. Destination Advertising - Publish services accessible via Reticulum
5. Integration with start.py - Add Reticulum orchestration to main launcher

References

• Reticulum Network Stack
• Reticulum Documentation
• rnsd Manual

Backup

Backup created before implementation:

/home/user/git/medusa-proxy-backup-20260213-235049.tar.gz

Completion

All requirements met: - ✅ Created proxy/reticulum.py following Service pattern - ✅ Created templates/reticulum.conf for configuration - ✅ Configured as participating transport node - ✅ Implemented comprehensive health checking - ✅ Updated proxy/__init__.py to export Reticulum class - ✅ Supports RETICULUMS environment variable - ✅ Follows existing code patterns (Tor, Snowflake, I2P, Yggdrasil)

Status: READY FOR INTEGRATION

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Generated by Claude Code Agent for NeXuS "Sane • Simple • Secure • Stealthy • Beautiful"