From d89533817aaedb6e63b37b9f38e7dba38b7cc245 Mon Sep 17 00:00:00 2001
From: Felix Lange <fjl@twurst.com>
Date: Thu, 7 May 2020 14:35:21 +0200
Subject: [PATCH] p2p: change port check

---
 p2p/dial.go | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/p2p/dial.go b/p2p/dial.go
index c3c4cace9c..9a4cea810f 100644
--- a/p2p/dial.go
+++ b/p2p/dial.go
@@ -78,7 +78,7 @@ var (
 	errAlreadyConnected = errors.New("already connected")
 	errRecentlyDialed   = errors.New("recently dialed")
 	errNotWhitelisted   = errors.New("not contained in netrestrict whitelist")
-	errLowPort          = errors.New("TCP port too low")
+	errNoPort           = errors.New("node does not provide TCP port")
 )
 
 // dialer creates outbound connections and submits them into Server.
@@ -389,8 +389,8 @@ func (d *dialScheduler) checkDial(n *enode.Node) error {
 	if n.ID() == d.self {
 		return errSelf
 	}
-	if n.IP() != nil && n.TCP() < 1024 {
-		return errLowPort
+	if n.IP() != nil && n.TCP() == 0 {
+		return errNoPort
 	}
 	if _, ok := d.dialing[n.ID()]; ok {
 		return errAlreadyDialing