From 8612506944188af9d117f50e7aa530517aa0628b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Thalheim?= <joerg@thalheim.io>
Date: Sun, 16 Aug 2020 15:56:03 +0100
Subject: [PATCH] tinc: reduce MTU

---
 modules/retiolum/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/retiolum/default.nix b/modules/retiolum/default.nix
index ae25be0..29877a9 100644
--- a/modules/retiolum/default.nix
+++ b/modules/retiolum/default.nix
@@ -61,6 +61,8 @@ in {
       Name = tinc.${netname}
 
       [Network]
+      # tested with `ping -6 turingmachine.r -s 1378`, not sure how low it must be
+      MTU=1377
       Address=${cfg.ipv4}/12
       Address=${cfg.ipv6}/16
     '';