From b171371b2a4f0462bce08f2f1e99853171cf140f Mon Sep 17 00:00:00 2001
From: Zillode <zillode@zillode.be>
Date: Fri, 31 Jul 2015 23:40:48 +0200
Subject: [PATCH] Document 21026/UDP

---
 users/firewall.rst | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/users/firewall.rst b/users/firewall.rst
index 2c7c07704..1516c53e2 100644
--- a/users/firewall.rst
+++ b/users/firewall.rst
@@ -30,7 +30,8 @@ incoming traffic:
 
 -  Port **22000/TCP** (or the actual listening port if you have changed
    the *Sync Protocol Listen Address* setting.)
--  Port **21025/UDP** (for discovery broadcasts)
+-  Port **21025/UDP** (for discovery broadcasts on IPv4)
+-  Port **21026/UDP** (for discovery multicasts on IPv6)
 
 Remote Web GUI
 --------------