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autonat: document that the observed address may also be dialed (#518)

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Marten Seemann
2023-02-24 02:35:46 -08:00
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parent c844f72e77
commit e764f1149a
1 changed files with 4 additions and 2 deletions
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autonat/README.md
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@@ -3,7 +3,7 @@
| Lifecycle Stage | Maturity | Status | Latest Revision |
|-----------------|----------------|--------|-----------------|
| 3A | Recommendation | Active | r0, 2021-08-26 |
| 3A | Recommendation | Active | r1, 2023-02-16 |
Authors: [@marten-seemann]
@@ -52,7 +52,9 @@ The AutoNAT Protocol uses the Protocol ID `/libp2p/autonat/1.0.0`. The node
wishing to determine its NAT status opens a stream using this protocol ID, and
then sends a `Dial` message. The `Dial` message contains a list of multiaddresses.
Upon receiving this message, the peer starts to dial these addresses. It MAY
dial all of them in parallel. The peer MAY use a different IP and peer ID than
add the observed address of the connection on which the request was received to
the list of addresses. It MAY dial the addresses in parallel.
The peer MAY also use a different IP and peer ID than
it uses for its regular libp2p connection to perform these dial backs.
In order to prevent attacks like the one described in [RFC 3489, Section