From 6307ffc418a96a12a29774356896eada8f124585 Mon Sep 17 00:00:00 2001
From: Arnaud <arnaud@status.im>
Date: Wed, 17 Jun 2026 02:43:52 +0400
Subject: [PATCH] Activate SO_REUSEPORT for hole punching

---
 storage/storage.nim | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/storage/storage.nim b/storage/storage.nim
index 9c5690b0..4088dcb8 100644
--- a/storage/storage.nim
+++ b/storage/storage.nim
@@ -88,6 +88,13 @@ proc start*(s: StorageServer) {.async.} =
 
   await s.storageNode.switch.start()
 
+  # Activate SO_REUSEPORT for hole punching in tcptransport.nim.
+  # Without that, hole punching would use an ephemeral port assigned by the OS.
+  # NotReachable has nothing to do with AutoNAT Reachability
+  if s.holePunchHandler.isSome:
+    for t in s.storageNode.switch.transports:
+      t.networkReachability = NetworkReachability.NotReachable
+
   # When listenPort is 0 the OS assigns a random port. For UDP, the port
   # doesn't change so there is no need to update it.
   if s.natMapper.isSome and s.config.listenPort == Port(0):