arcbox-net

High-performance network stack for ArcBox.

This crate provides networking capabilities for VMs including:

• NAT networking: Default shared network with host
• Bridge networking: Direct L2 connectivity
• Host-only networking: Isolated VM networks
• Port forwarding: Expose guest services to host

Performance Features

• Zero-copy packet handling via shared memory
• Kernel bypass using vmnet.framework (macOS)
• Multi-queue virtio-net support
• Hardware checksum offload

Architecture

┌─────────────────────────────────────────────────┐
│                  arcbox-net                     │
│  ┌─────────────────────────────────────────┐   │
│  │            NetworkManager               │   │
│  │  - Network lifecycle                    │   │
│  │  - IP allocation                        │   │
│  └─────────────────────────────────────────┘   │
│  ┌──────────┐ ┌──────────┐ ┌──────────────┐   │
│  │  NAT     │ │  Bridge  │ │  Port Forward │   │
│  │ Network  │ │ Network  │ │    Service    │   │
│  └──────────┘ └──────────┘ └──────────────┘   │
│  ┌─────────────────────────────────────────┐   │
│  │              TAP/vmnet                   │   │
│  └─────────────────────────────────────────┘   │
└─────────────────────────────────────────────────┘