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docs(traceroute): note the protocol-dependent default port (SIM-311)[ship] #1409

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Merged
danielpaulus merged 1 commit into from
Jul 16, 2026
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docs(traceroute): note the protocol-dependent default port (SIM-311)[ship] #1409

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7 changes: 5 additions & 2 deletions packages/cli/src/constructs/traceroute-request.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -37,11 +37,14 @@ export interface TracerouteRequest {

/**
* The destination port for TCP/UDP/SCTP probes. Ignored (and not sent) when
* `protocol` is `ICMP`.
* `protocol` is `ICMP`. When omitted, the default is protocol-dependent: `443`
* for TCP, and `33434` (a closed high port) for UDP/SCTP — UDP/SCTP arrival is
* only confirmed by an ICMP "port unreachable" from a closed port, whereas 443
* is typically open and would never confirm arrival.
*
* @minimum 1
* @maximum 65535
* @defaultValue 443
* @defaultValue 443 for TCP, 33434 for UDP/SCTP
*/
port?: number

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