From 78437abe0ef7bd3996cd7460ea2f044ee71a710f Mon Sep 17 00:00:00 2001
From: fumiama <s862105088@gmail.com>
Date: Sat, 1 Jan 2022 20:32:26 +0800
Subject: [PATCH] finish mtu

---
 README.md           | 1 +
 lower/tun_darwin.go | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 664bff0..d2ad754 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,7 @@ wg [-c config.yaml] [-d|w] [-g] [-h] [-m mtu] [-p]
   -p    show my publickey
   -w    only show logs above warn level
 ```
+- *especially*: in macos mojave, max value of mtu is `9159`
 
 ## Config file example
 ```yaml
diff --git a/lower/tun_darwin.go b/lower/tun_darwin.go
index 745d551..0b0712a 100644
--- a/lower/tun_darwin.go
+++ b/lower/tun_darwin.go
@@ -4,7 +4,7 @@
 package lower
 
 func (n *NIC) Up() {
-	execute("ifconfig", n.ifce.Name(), "mtu", n.mtu)
+	execute("ifconfig", n.ifce.Name(), "mtu", n.mtu) // max: 9159
 	execute("ifconfig", n.ifce.Name(), "inet", n.ip, n.ip, "up")
 	execute("route", "add", n.subnet, "-interface", n.ifce.Name())
 	for _, c := range n.cidrs {