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NatPmpMethod

dig_nat::method::natpmp

Struct NatPmpMethod 

Source 
pub struct NatPmpMethod {
    pub gateway: SocketAddrV4,
    pub local_port: u16,
    pub lifetime_secs: u32,
    pub timeout: Duration,
}
Expand description

The NAT-PMP traversal method.

Discovers the gateway’s external IPv4, then requests a UDP mapping from local_port so the peer can reach this node, and yields a dial address for the peer. When no NAT-PMP gateway is present, the request times out and the method fails (strategy falls through).

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§gateway: SocketAddrV4

The gateway address (usually the default route, port NATPMP_PORT).

§local_port: u16

The local UDP port this node listens on and wants mapped.

§lifetime_secs: u32

Requested mapping lifetime (seconds).

§timeout: Duration

Per-request deadline.

Implementations§

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impl NatPmpMethod

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pub fn new(gateway: Ipv4Addr, local_port: u16) -> Self

Build a NAT-PMP method for the given gateway + local port with sensible defaults (2h lifetime, 1s timeout — a present gateway answers in milliseconds).

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impl Clone for NatPmpMethod

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fn clone(&self) -> NatPmpMethod

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for NatPmpMethod

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl TraversalMethod for NatPmpMethod

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fn kind(&self) -> TraversalKind

Which technique this is (for ordering + observability).
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fn attempt<'life0, 'life1, 'async_trait>( &'life0 self, peer: &'life1 PeerTarget, ) -> Pin<Box<dyn Future<Output = Result<MethodOutcome, MethodError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Attempt to produce a reachable address for peer. Ok(outcome) means “try dialing this”; Err means this technique did not work (the strategy falls through to the next one).

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