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Configuration.md

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Configuration (TunnelConfig)

TunnelConfig is immutable and built with TunnelConfig.Builder. Validation runs in init when you call build().

Structure

TunnelConfig
├── Interface — address (CIDR), privateKey (Base64), listenPort (Long)
└── Peer — publicKey (Base64), allowedIps (List), endpoint (String)

Interface address

IPv4 with CIDR, e.g. 10.0.0.2/24, 192.168.1.5/32.

Keys

Private and peer public keys must match:

  • 44 characters
  • Base64 alphabet
  • Trailing =

Listen port

1–65535 as Long in the builder (setListenPort(51820L)).

Allowed IPs

Non-empty list of IPv4 CIDR strings, e.g. listOf("0.0.0.0/0") for full IPv4 tunnel.

Endpoint

Important: validation currently accepts IPv4:port only (e.g. 198.51.100.10:51820). Hostnames are not accepted by the regex; resolve DNS in your app first if you need a hostname.

Blocked / excluded packages

Pass a list of package names as the third argument to WireLingVpn.startVpnTunnel, or null for none. Semantics follow the underlying tunnel implementation.

Next: Troubleshooting