From a67aaf1fdfa90f25bbb77cc95c92f8b7162c84f5 Mon Sep 17 00:00:00 2001
From: Philippe Jalaber <philippe.jalaber@stormshield.eu>
Date: Fri, 10 Jun 2022 10:54:04 +0200
Subject: [PATCH] Multiaddr duplicated p2p protocol in relay reservation
 (#2696)

---
 protocols/relay/src/v2/relay.rs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/protocols/relay/src/v2/relay.rs b/protocols/relay/src/v2/relay.rs
index 8d8bb75caa99..30ceb2bda6ff 100644
--- a/protocols/relay/src/v2/relay.rs
+++ b/protocols/relay/src/v2/relay.rs
@@ -757,8 +757,12 @@ impl Action {
                     addrs: poll_parameters
                         .external_addresses()
                         .map(|a| {
-                            a.addr
-                                .with(Protocol::P2p((*poll_parameters.local_peer_id()).into()))
+                            let p2p_proto =
+                                Protocol::P2p(*poll_parameters.local_peer_id().as_ref());
+                            match a.addr.iter().last() {
+                                Some(p) if p == p2p_proto => a.addr,
+                                _ => a.addr.with(p2p_proto),
+                            }
                         })
                         .collect(),
                 }),