From b88fef203bfe527482d02c4d948831b070908f47 Mon Sep 17 00:00:00 2001
From: Kim De Mey <kim.demey@gmail.com>
Date: Thu, 26 Nov 2020 18:19:13 +0100
Subject: [PATCH] Add info log line in case of no external IP (#313)

---
 eth/p2p/discoveryv5/protocol.nim | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/eth/p2p/discoveryv5/protocol.nim b/eth/p2p/discoveryv5/protocol.nim
index 1be86a5..b740ba8 100644
--- a/eth/p2p/discoveryv5/protocol.nim
+++ b/eth/p2p/discoveryv5/protocol.nim
@@ -798,6 +798,9 @@ proc newProtocol*(privKey: PrivateKey,
 proc open*(d: Protocol) {.raises: [Exception, Defect].} =
   info "Starting discovery node", node = d.localNode,
     bindAddress = d.bindAddress, uri = toURI(d.localNode.record)
+
+  if d.localNode.address.isNone():
+    info "No external IP provided, this node will not be discoverable"
   # TODO allow binding to specific IP / IPv6 / etc
   let ta = initTAddress(d.bindAddress.ip, d.bindAddress.port)
   # TODO: raises `OSError` and `IOSelectorsException`, the latter which is