From 409a7877df94a2b3df2eb4ee48cf4a1eb34819cc Mon Sep 17 00:00:00 2001
From: catvayor <catvayor@katvayor.net>
Date: Wed, 8 Jan 2025 18:27:04 +0100
Subject: [PATCH] feat(vault01): higher MTU

---
 machines/nixos/vault01/networking.nix | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/machines/nixos/vault01/networking.nix b/machines/nixos/vault01/networking.nix
index b11352c..4679ae7 100644
--- a/machines/nixos/vault01/networking.nix
+++ b/machines/nixos/vault01/networking.nix
@@ -58,7 +58,10 @@ let
             LinkLocalAddressing = "no";
             DHCPServer = "yes";
           };
-          linkConfig.Promiscuous = true;
+          linkConfig = {
+            Promiscuous = true;
+            MTUBytes = 1500;
+          };
           addresses = [
             {
               Address = "${servIP}/27";
@@ -134,7 +137,10 @@ let
       Id = 2001;
       address = [ "10.0.254.1/24" ];
 
-      extraNetwork.networkConfig.DHCPServer = "yes";
+      extraNetwork = {
+        networkConfig.DHCPServer = "yes";
+        linkConfig.MTUBytes = 1500;
+      };
     };
   } // builtins.listToAttrs (map mkUserVlan userVlans);
 in
@@ -176,6 +182,7 @@ in
             IPv6AcceptRA = false;
             IPv6SendRA = false;
           };
+          linkConfig.MTUBytes = 1504;
         };
         "50-gretap1" = {
           name = "gretap1";