Bind to loopback only as last resort

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
 }