diff --git a/src/proxychains.conf b/src/proxychains.conf
index 52c0986..dc66400 100644
--- a/src/proxychains.conf
+++ b/src/proxychains.conf
@@ -94,6 +94,9 @@ tcp_connect_time_out 8000
 
 ### Examples for localnet exclusion
 ## localnet ranges will *not* use a proxy to connect.
+## note that localnet works only when plain IPv4 addresses are passed to the app,
+## the hostname resolves via /etc/hosts, or proxy_dns is disabled or proxy_dns_old used.
+
 ## Exclude connections to 192.168.1.0/24 with port 80
 # localnet 192.168.1.0:80/255.255.255.0