From 54ea982b0288da43b6be1a92bb3f8e0fe4991557 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?William=20Tisa=CC=88ter?= <william@defunct.cc>
Date: Wed, 2 Sep 2015 12:24:44 +0200
Subject: [PATCH] Bind to loopback only as last resort

---
 consul/util.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/consul/util.go b/consul/util.go
index 87a6dc6d4e..cd0f86dc23 100644
--- a/consul/util.go
+++ b/consul/util.go
@@ -178,6 +178,7 @@ func isPrivateIP(ip_str string) bool {
 // Returns addresses from interfaces that is up
 func activeInterfaceAddresses() ([]net.Addr, error) {
 	var upAddrs []net.Addr
+	var loAddrs []net.Addr
 
 	interfaces, err := net.Interfaces()
 	if err != nil {
@@ -195,9 +196,18 @@ func activeInterfaceAddresses() ([]net.Addr, error) {
 			return nil, fmt.Errorf("Failed to get interface addresses: %v", err)
 		}
 
+		if iface.Flags&net.FlagLoopback != 0 {
+			loAddrs = append(loAddrs, addresses...)
+			continue
+		}
+
 		upAddrs = append(upAddrs, addresses...)
 	}
 
+	if len(upAddrs) == 0 {
+		return loAddrs, nil
+	}
+
 	return upAddrs, nil
 }