From 76db2a0b31348a65c68ecda9f2c731481a1bc885 Mon Sep 17 00:00:00 2001
From: Steven Allen <steven@stebalien.com>
Date: Fri, 20 Sep 2019 16:36:15 -0700
Subject: [PATCH] doc(config): improve DisableNatPortMap documentation

---
 docs/config.md | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/docs/config.md b/docs/config.md
index 231a828f6..883a650b0 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -362,7 +362,12 @@ bandwidth metrics. Disabling bandwidth metrics can lead to a slight performance
 improvement, as well as a reduction in memory usage.
 
 - `DisableNatPortMap`
-Disable NAT discovery.
+Disable automatic NAT port forwarding.
+
+When not disabled (default), go-ipfs asks NAT devices (e.g., routers), to open
+up an external port and forward it to the port go-ipfs is running on. When this
+works (i.e., when your router supports NAT port forwarding), it makes the local
+go-ipfs node accessible from the public internet.
 
 - `DisableRelay`
 Disables the p2p-circuit relay transport.