From 67133cfc011ff2cd2bb5c7aea6c5ebb76ace2e74 Mon Sep 17 00:00:00 2001
From: sinanmohd <sinan@sinanmohd.com>
Date: Sat, 29 Jun 2024 08:24:14 +0530
Subject: kay: bump mtu size

BSNL recently upgraded their BNGs, bumping the mtu to 1492. this can be
seen on the pppd log. other users also reported this, so this is likely
not a "misconfiguration"

	https://broadband.forum/threads/what-is-the-best-mtu-size-for-bsnl-ftth-connections.226751/
---
 os/cez/modules/wireguard.nix | 2 +-
 os/common/modules/user.nix   | 1 +
 os/kay/modules/hurricane.nix | 2 +-
 os/kay/modules/wireguard.nix | 2 +-
 4 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/os/cez/modules/wireguard.nix b/os/cez/modules/wireguard.nix
index 40dd796..e6fa454 100644
--- a/os/cez/modules/wireguard.nix
+++ b/os/cez/modules/wireguard.nix
@@ -7,7 +7,7 @@ in {
     autostart = false;
     address = [ "10.0.1.2/24" ];
     dns = [ "10.0.1.1" ];
-    mtu = 1380;
+    mtu = 1412;
     privateKeyFile = config.sops.secrets."misc/wireguard".path;
 
     peers = [{
diff --git a/os/common/modules/user.nix b/os/common/modules/user.nix
index d6c341b..b58d980 100644
--- a/os/common/modules/user.nix
+++ b/os/common/modules/user.nix
@@ -11,6 +11,7 @@ in {
     openssh.authorizedKeys.keys = [
       "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAcCendbKbeoc7hYEEcBt9wwtSXrJUgJ2SuYARO0zPAX sinan@veu"
       "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIL8LnyOuPmtKRqAZeHueNN4kfYvpRQVwCivSTq+SZvDU sinan@cez"
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHeyFnYE9RJ87kbkjgrev/yw1Z4PVLxvfPAtJjBMOYPq sinan@ale"
     ];
   };
 }
diff --git a/os/kay/modules/hurricane.nix b/os/kay/modules/hurricane.nix
index 9e22bf5..9aaf1d1 100644
--- a/os/kay/modules/hurricane.nix
+++ b/os/kay/modules/hurricane.nix
@@ -24,7 +24,7 @@ in
       ttl = 225;
     };
     interfaces.${iface} = {
-      mtu = 1440; # 1460(ppp0) - 20
+      mtu = 1472; # 1492(ppp0) - 20
       ipv6.addresses = [
         {
           address = clinet;
diff --git a/os/kay/modules/wireguard.nix b/os/kay/modules/wireguard.nix
index 578a86a..82eb96f 100644
--- a/os/kay/modules/wireguard.nix
+++ b/os/kay/modules/wireguard.nix
@@ -26,7 +26,7 @@ in
     wireguard.interfaces.${wgInterface} = {
       ips = [ "10.0.1.1/${toString prefix}" ];
       listenPort = port;
-      mtu = 1380; # 1460 (ppp0) - 80
+      mtu = 1412; # 1492 (ppp0) - 80
       privateKeyFile = config.sops.secrets."misc/wireguard".path;
 
       peers = [
-- 
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