Eliminate PS5 Remote Play problems!Easy to open port with ASUS's "Open Nat"

　The masterpieces of the serialization explain how to improve the radio wave condition of home Wi-Fi, but the time spent at home increases, and the entertainment system that can be made at home as well as the game seems to be popular.In this series, let's use Sony "PlayStation 5 (PS5)" to home Wi-Fi for a while.

　The PS5 was released in November 2020, but it is still in short terms and is mainly sold in lottery.However, it seems to be easier to obtain than before, and finally came to my home with the right to buy.

今回はASUSのゲーミングWi-Fiルーターに搭載されている「Open NAT」を使い、手軽にポート開放をする方法を紹介する

List of articles in "I don't know" of home Wi-Fi!

　By the last time, we introduced a method that solves the PS5 on the router by setting the PS5 to DMZ on the problem of not being able to play remote play or online play in PS5.

　However, when set to DMZ, the device is placed outside the simple firewall of the router, so that the attack from the Internet side is inevitably exposed.

　If you set the port usage port (port forwarding) on the router side instead of the DMZ, the safety will be improved because it cannot be accessed from the Internet other than the specified port.If you can use it, this method is recommended.

　However, it is difficult to set all different ports depending on the service that uses games.Especially in games, it is difficult because you have to change the port that is opened depending on the title you play.It is difficult to easily switch ports that are opened for each game.

　For example, if you want to play remote play with PS5, it is recommended to open each port of UDP 3478 and 3479, including TCP 80, 443, 3478, 3479, 3480.In multiplayer at the time of online matches, the ports that are opened differ depending on the game title.

フレッツ光回線のHGW「PR-400MI」でのポート開放設定例。［静的IPマスカレード（NAPT）設定］にエントリを複数設定していく

　ASUS has a function that considers the difficulty of such settings on some of the Wi-Fi routers.It is called "Open NAT" and can be used in the gaming router "TUF" series.There are some things that can be used other than the TUF series, so it is a good idea to check them out on the function table before purchasing.

　As with DMZ, Open NAT is set after fixing the PS5 IP address.If it is a famous game title, the settings are almost covered, and the settings are completed simply by selecting the game title and the PS5 or PC platform.

　For this reason, if the game title you want to play is registered, it is a very useful feature because you can easily switch the port open for each game.The setting example uses a model called "RT-AC67U", but is basically the same for other models.

まずは［Open NAT］で［ポートフォワーディングを有効にする］をオンにする下にスクロールして設定するゲームタイトルを選ぶこのような画面になる。［プラットフォーム］で［PS 5］や［PS 4］などにチェックを入れ、固定したPS5のIPアドレスを入力。［OK］をクリックすると設定されるこのように設定される。不要になったらゴミ箱アイコンをクリックして設定を削除してしまおう