#
# L2TP/IPsecを使用したリモートアクセス : ルーター コマンド設定
#

#
# ルーター 複数のL2TPクライアント(アドレス不定)の接続を受け付ける場合
#

#
# ゲートウェイの設定
#
ip route default gateway pp 1

#
# LANインターフェースの設定
#
ip lan1 address 192.168.100.1/24
ip lan1 proxyarp on

#
# WANインターフェースの設定
#
pp select 1
pp always-on on
pppoe use lan2
pp auth accept pap chap
pp auth myname (ISPに接続するID) (ISPに接続するパスワード)
ppp lcp mru on 1454
ppp ipcp ipaddress on
ppp ipcp msext on
ppp ccp type none
ip pp mtu 1454
ip pp nat descriptor 1
pp enable 1

#
# L2TP接続を受け入れるための設定
#
pp select anonymous
pp bind tunnel1 tunnel2 tunnel3
pp auth request chap-pap
pp auth username (PPPユーザー名1) (PPPパスワード1)
pp auth username (PPPユーザー名2) (PPPパスワード2)
pp auth username (PPPユーザー名3) (PPPパスワード3)
ppp ipcp ipaddress on
ppp ipcp msext on
ip pp remote address pool 192.168.100.10-192.168.100.20
ip pp mtu 1258
pp enable anonymous


#
# L2TP接続で使用するトンネル1の設定
#
tunnel select 1
tunnel encapsulation l2tp
ipsec tunnel 101
ipsec sa policy 101 1 esp aes-cbc sha-hmac
ipsec ike keepalive use 1 off
ipsec ike local address 1 192.168.100.1
ipsec ike nat-traversal 1 on
ipsec ike pre-shared-key 1 text (事前共有鍵)
ipsec ike remote address 1 any
l2tp tunnel disconnect time off
l2tp keepalive use on 10 3
l2tp keepalive log on
l2tp syslog on
ip tunnel tcp mss limit auto
tunnel enable 1

#
# L2TP接続で使用するトンネル2の設定
#
tunnel select 2
tunnel encapsulation l2tp
ipsec tunnel 102
ipsec sa policy 102 2 esp aes-cbc sha-hmac
ipsec ike keepalive use 2 off
ipsec ike local address 2 192.168.100.1
ipsec ike nat-traversal 2 on
ipsec ike pre-shared-key 2 text (事前共有鍵)
ipsec ike remote address 2 any
l2tp tunnel disconnect time off
l2tp keepalive use on 10 3
l2tp keepalive log on
l2tp syslog on
ip tunnel tcp mss limit auto
tunnel enable 2

#
# L2TP接続で使用するトンネル3の設定
#
tunnel select 3
tunnel encapsulation l2tp
ipsec tunnel 103
ipsec sa policy 103 3 esp aes-cbc sha-hmac
ipsec ike keepalive use 3 off
ipsec ike local address 3 192.168.100.1
ipsec ike nat-traversal 3 on
ipsec ike pre-shared-key 3 text (事前共有鍵)
ipsec ike remote address 3 any
l2tp tunnel disconnect time off
l2tp keepalive use on 10 3
l2tp keepalive log on
l2tp syslog on
ip tunnel tcp mss limit auto
tunnel enable 3

#
# NATの設定
#
nat descriptor type 1 masquerade
nat descriptor address outer 1 ipcp
nat descriptor address inner 1 auto
nat descriptor masquerade static 1 1 192.168.100.1 esp
nat descriptor masquerade static 1 2 192.168.100.1 udp 500
nat descriptor masquerade static 1 3 192.168.100.1 udp 4500

#
# IPsecのトランスポートモード設定
#
ipsec transport 1 101 udp 1701
ipsec transport 2 102 udp 1701
ipsec transport 3 103 udp 1701
ipsec auto refresh on

#
# DNSの設定
#
dns server (ISPから指定されたDNSサーバーのIPアドレス)
dns private address spoof on

#
# L2TPの設定
#
l2tp service on