From cfddee4f7ab85be10ef75b23f1f055c7966276e2 Mon Sep 17 00:00:00 2001
From: Andrew Rynhard <andrew@andrewrynhard.com>
Date: Sat, 28 Oct 2017 21:58:56 -0700
Subject: [PATCH] Fix the DNS addon bind address

---
 cmd/kubeadm/app/phases/addons/dns/dns.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmd/kubeadm/app/phases/addons/dns/dns.go b/cmd/kubeadm/app/phases/addons/dns/dns.go
index 3db5c9009d6..2786bb4914b 100644
--- a/cmd/kubeadm/app/phases/addons/dns/dns.go
+++ b/cmd/kubeadm/app/phases/addons/dns/dns.go
@@ -57,7 +57,7 @@ func EnsureDNSAddon(cfg *kubeadmapi.MasterConfiguration, client clientset.Interf
 	}
 
 	var dnsBindAddr string
-	if dnsip.To16() != nil {
+	if dnsip.To4() == nil {
 		dnsBindAddr = "::1"
 	} else {
 		dnsBindAddr = "127.0.0.1"