From 665f3407faf393b459d9e36e733bf7945077ddaf Mon Sep 17 00:00:00 2001
From: Jack O'Sullivan <jackos1998@gmail.com>
Date: Sat, 15 Apr 2023 20:47:14 +0100
Subject: [PATCH] nixos/l2mesh: Set VXLAN MTU

---
 nixos/modules/l2mesh.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/nixos/modules/l2mesh.nix b/nixos/modules/l2mesh.nix
index 3213349..aa6fe7c 100644
--- a/nixos/modules/l2mesh.nix
+++ b/nixos/modules/l2mesh.nix
@@ -27,6 +27,11 @@ let
         Independent = true;
       };
     };
+    links."20-l2mesh-${name}" = {
+      matchConfig.Name = mesh.interface;
+      # TODO: ipv6? ipsec?
+      linkConfig.MTUBytes = "1450";
+    };
     networks."90-l2mesh-${name}" = {
       matchConfig.Name = mesh.interface;
       extraConfig = concatStringsSep "\n" (mapAttrsToList (n: peer: ''