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Raspberry Pi 2 (Raspbian: jessie) でIPアドレスを固定する

Last updated at Posted at 2015-12-07

概要

Raspbian WheezyでIP固定化する方法は簡単に見つかったが、Jessieでは方法が異なっていたため、設定方法を記録しておくことにします。

設定内容

Wheezyでは /etc/network/interfaces を編集することで固定IP化できましたが、Jessieでは有効になりませんでした。

interfacesファイルをよく見ると、以下のようなコメントが記述されています

# Please note that this file is written to be used with dhcpcd
# For static IP, consult /etc/dhcpcd.conf and 'man dhcpcd.conf'

そこで、dhcpcd.confのmanを見てみる。以下のような記述が

     static value
             Configures a static value.  If you set ip_address then dhcpcd
             will not attempt to obtain a lease and just use the value for the
             address with an infinite lease time.

             Here is an example which configures a static address, routes and
             dns.
                   interface eth0
                   static ip_address=192.168.0.10/24
                   static routers=192.168.0.1
                   static domain_name_servers=192.168.0.1

             Here is an example for PPP which gives the destination a default
             route.  It uses the special destination keyword to insert the
             destination address into the value.
                   interface ppp0
                   static ip_address=
                   destination routers

そっくりそのまま使えそうなので、/etc/dhcpcd.confに以下のように追記して再起動。

etc/dhcpcd.conf
interface eth0
static ip_address=192.168.0.15/24
static routers=192.168.0.1
static domain_name_servers=192.168.0.1

設定したIPアドレスに固定されました。
この例は有線LAN(eth0)を使った例なので、無線の場合は調べてみてください。

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