diff --git a/README.md b/README.md
index 81480f6..d1aded8 100644
--- a/README.md
+++ b/README.md
@@ -48,6 +48,8 @@ The program supports attaching TNCs as point-to-point tunnel devices, or generic
 
 Additionally, it is worth noting that __tncattach__ can filter out IPv6 packets from reaching the TNC. Most operating systems attempts to autoconfigure IPv6 when an interface is brought up, which results in a substantial amount of IPv6 traffic generated by router solicitations and similar, which is usually unwanted for packet radio links and similar.
 
+If you intend to use __tncattach__ on a system with mDNS services enabled (avahi-daemon, for example), you may want to consider modifying your mDNS setup to exclude TNC interfaces, or turning it off entirely, since it will generate a lot of traffic that might be unwanted.
+
 ## Examples
 
 Create an ethernet device with a USB-connected TNC, set the MTU, filter IPv6 traffic, and set an IPv4 address: