From f0f26bba94cec05041e94acea0d413816bac0e1f Mon Sep 17 00:00:00 2001
From: Colin Adler <colin1adler@gmail.com>
Date: Thu, 16 Jun 2022 11:50:01 -0500
Subject: [PATCH] fix(devtunnel): use 1280 mtu

This should be more compatible with cloud VMs and VPNs.
---
 coderd/devtunnel/tunnel.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/coderd/devtunnel/tunnel.go b/coderd/devtunnel/tunnel.go
index 092cdd52ee5f6..a5b8be7d02c4f 100644
--- a/coderd/devtunnel/tunnel.go
+++ b/coderd/devtunnel/tunnel.go
@@ -59,7 +59,7 @@ func NewWithConfig(ctx context.Context, logger slog.Logger, cfg Config) (*Tunnel
 	tun, tnet, err := netstack.CreateNetTUN(
 		[]netip.Addr{netip.AddrFrom16(cfg.ID)},
 		[]netip.Addr{netip.AddrFrom4([4]byte{1, 1, 1, 1})},
-		1420,
+		1280,
 	)
 	if err != nil {
 		return nil, nil, xerrors.Errorf("create net TUN: %w", err)