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# IPsecとL2TP/IPsecを使用した多拠点とのVPN接続 : コマンド設定 + RTX810 Web GUI設定
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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
ip route 192.168.100.0/24 gateway tunnel 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 (ISPへ接続するID) (ISPへ接続するパスワード)
 ppp lcp mru on 1454
 ppp ipcp msext on
 ip pp address (本社 ルーターのグローバルアドレス)
 ip pp mtu 1454
 ip pp secure filter in 1020 1030 1040 1041 1042 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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# L2TP接続を受け入れるための設定
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pp select anonymous
 pp bind tunnel2
 pp auth request mschap-v2
 pp auth username (ユーザー1) (パスワード1)
 ppp ipcp ipaddress on
 ppp ipcp msext on
 ip pp remote address pool 192.168.0.192-192.168.0.199
 ip pp mtu 1258
 pp enable anonymous

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# VPN(IPsec)の設定
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tunnel select 1
 ipsec tunnel 1
  ipsec sa policy 1 1 esp aes-cbc sha-hmac
  ipsec ike keepalive log 1 off
  ipsec ike local address 1 192.168.0.1
  ipsec ike pre-shared-key 1 text (IPsecの事前共有鍵1)
  ipsec ike remote address 1 any
  ipsec ike remote name 1 (RTX810に設定された名前)
 tunnel enable 1

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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2)
  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 transport 1 2 udp 1701
l2tp service on

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# VPN(IPsec)の共通設定
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ipsec auto refresh 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 udp * 500
ip filter 1041 pass * 192.168.0.1 udp * 4500
ip filter 1042 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 (本社 ルーターのグローバルアドレス)
nat descriptor masquerade static 1 1 192.168.0.1 udp 500
nat descriptor masquerade static 1 2 192.168.0.1 udp 4500
nat descriptor masquerade static 1 3 192.168.0.1 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より指定されたDNSサーバーのアドレス)
dns private address spoof on