From af1f1d3ada857d2e9f9ecd40a6f50c6a49b7c0d3 Mon Sep 17 00:00:00 2001
From: Andreas Linde <42185+DerAndereAndi@users.noreply.github.com>
Date: Thu, 23 Jun 2022 12:20:32 +0200
Subject: [PATCH] Fix compatibility with some IoT devices using avahi 0.8-rc1
 (#27)

* Fix compatibility with avahi 0.8-rc1

This fixes browse, lookup and also register not working properly with devices running with avahi 0.8-rc1

* Fix linter warning

* Also set IPv6 HopLimit
---
 connection.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/connection.go b/connection.go
index 598dbb99..a0936d9e 100644
--- a/connection.go
+++ b/connection.go
@@ -62,6 +62,8 @@ func joinUdp6Multicast(interfaces []net.Interface) (*ipv6.PacketConn, error) {
 		return nil, fmt.Errorf("udp6: failed to join any of these interfaces: %v", interfaces)
 	}
 
+	_ = pkConn.SetMulticastHopLimit(255)
+
 	return pkConn, nil
 }
 
@@ -93,6 +95,8 @@ func joinUdp4Multicast(interfaces []net.Interface) (*ipv4.PacketConn, error) {
 		return nil, fmt.Errorf("udp4: failed to join any of these interfaces: %v", interfaces)
 	}
 
+	_ = pkConn.SetMulticastTTL(255)
+
 	return pkConn, nil
 }