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# PPTPとL2TP/IPsecを使用して外出先からVPN接続する
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# 本社 ルーター
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# ゲートウェイの設定
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ip route default gateway pp 1

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# LANインターフェースの設定
# （LAN1ポートを使用）
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ip lan1 address 192.168.0.1/24
ip lan1 proxyarp on

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# WANインターフェースの設定
# （LAN2ポートを使用）
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pp select 1
 pp always-on on
 pppoe use lan2
 pp auth accept pap chap
 pp auth myname (ISP1へ接続するID) (ISP1へ接続するパスワード)
 ppp lcp mru on 1454
 ppp ipcp msext on
 ip pp address (固定グローバルIPアドレス)
 ip pp mtu 1454
 ip pp secure filter in 1020 1030 1040 1041 1042 1043 1044 2000
 ip pp secure filter out 1010 1011 1012 1013 1014 1015 3000 dynamic 100 101 102 103 104 105 106
 ip pp nat descriptor 1
 pp enable 1

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# PPTPまたはL2TP接続を受け入れるための設定
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pp select anonymous
 pp bind tunnel1-tunnel2
 pp auth request mschap-v2
 pp auth username (ユーザー名1) (パスワード1)
 pp auth username (ユーザー名2) (パスワード2)
 ppp ipcp ipaddress on
 ppp ipcp msext on
 ppp ccp type mppe-any
 ip pp remote address pool 192.168.0.192-192.168.0.199
 ip pp mtu 1258
 pptp service type server
 pp enable anonymous

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# VPN(PPTP)の設定
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tunnel select 1
 tunnel encapsulation pptp
 tunnel enable 1
pptp service on

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# VPN(L2TP/IPsec)の設定
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tunnel select 2
 tunnel encapsulation l2tp
 ipsec tunnel 2
  ipsec sa policy 2 2 esp aes-cbc sha-hmac
  ipsec ike keepalive use 2 off
  ipsec ike local address 2 192.168.0.1
  ipsec ike nat-traversal 2 on
  ipsec ike pre-shared-key 2 text (IPsecの事前共有鍵)
  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
ipsec auto refresh on
ipsec transport 1 2 udp 1701
l2tp service on

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# フィルターの設定
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ip filter source-route on
ip filter directed-broadcast on
ip filter 1010 reject * * udp,tcp 135 *
ip filter 1011 reject * * udp,tcp * 135
ip filter 1012 reject * * udp,tcp netbios_ns-netbios_ssn *
ip filter 1013 reject * * udp,tcp * netbios_ns-netbios_ssn
ip filter 1014 reject * * udp,tcp 445 *
ip filter 1015 reject * * udp,tcp * 445
ip filter 1020 reject 192.168.0.0/24 *
ip filter 1030 pass * 192.168.0.0/24 icmp
ip filter 1040 pass * 192.168.0.1 tcp * 1723
ip filter 1041 pass * 192.168.0.1 gre
ip filter 1042 pass * 192.168.0.1 udp * 500
ip filter 1043 pass * 192.168.0.1 udp * 4500
ip filter 1044 pass * 192.168.0.1 esp
ip filter 2000 reject * *
ip filter 3000 pass * *
ip filter dynamic 100 * * ftp
ip filter dynamic 101 * * www
ip filter dynamic 102 * * domain
ip filter dynamic 103 * * smtp
ip filter dynamic 104 * * pop3
ip filter dynamic 105 * * tcp
ip filter dynamic 106 * * udp

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# NATの設定
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nat descriptor type 1 masquerade
nat descriptor address outer 1 (固定グローバルIPアドレス)
nat descriptor masquerade static 1 1 192.168.0.1 tcp 1723
nat descriptor masquerade static 1 2 192.168.0.1 gre
nat descriptor masquerade static 1 3 192.168.0.1 udp 500
nat descriptor masquerade static 1 4 192.168.0.1 udp 4500
nat descriptor masquerade static 1 5 192.168.0.1 esp

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# DHCPの設定
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dhcp service server
dhcp server rfc2131 compliant except remain-silent
dhcp scope 1 192.168.0.2-192.168.0.191/24

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# DNSの設定
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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