# # L2TP/IPsecを使用した多拠点とのVPN接続 : コマンド設定 # # # センタールーター # # # LANインターフェースの設定 # bridge member bridge1 lan1 tunnel1-tunnel3 ip bridge1 address 192.168.0.200/24 ip bridge1 proxyarp on ip lan2 address 192.168.10.1/24 # # WAN(ISP1)のインターフェースの設定 # pp select 1 pp always-on on pppoe use lan3 pp auth accept pap chap pp auth myname (ISP1と接続するID) (ISP1と接続するパスワード) ppp lcp mru on 1454 ppp ipcp msext on ip pp address (センターのグローバルアドレス) ip pp mtu 1454 ip pp secure filter in 1020 1030 1031 1040 1041 1042 2000 dynamic 200 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 ip route default gateway pp 1 # # L2TP接続を受け入れるための設定 # pp select anonymous pp bind tunnel4-tunnel5 pp auth request mschap-v2 pp auth username (ユーザー1) (パスワード1) pp auth username (ユーザー2) (パスワード2) 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 l2tp service on # # L2TPv3/IPsecの設定(拠点1) # tunnel select 1 tunnel encapsulation l2tpv3 tunnel endpoint address 192.168.0.200 (拠点1のグローバルアドレス) ipsec tunnel 101 ipsec sa policy 101 1 esp aes-cbc sha-hmac ipsec ike keepalive use 1 on ipsec ike local address 1 192.168.0.200 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 (拠点1の名前) key-id l2tp always-on on l2tp hostname (接続相手に通知するセンターのホスト名) l2tp tunnel auth on (L2TPv3トンネル認証に用いるパスワード1) l2tp tunnel disconnect time off l2tp keepalive use on 60 3 l2tp keepalive log on l2tp syslog on l2tp local router-id 192.168.0.200 l2tp remote router-id 192.168.0.201 l2tp remote end-id (L2TPv3のリモートエンドID1) tunnel enable 1 # # L2TPv3/IPsecの設定(拠点2) # tunnel select 2 tunnel encapsulation l2tpv3 ipsec tunnel 102 ipsec sa policy 102 2 esp aes-cbc sha-hmac ipsec ike keepalive use 2 on ipsec ike local address 2 192.168.0.200 ipsec ike pre-shared-key 2 text (IPsecの事前共有鍵2) ipsec ike remote address 2 any ipsec ike remote name 2 (拠点2の名前) key-id l2tp always-on on l2tp hostname (接続相手に通知するセンターのホスト名) l2tp tunnel auth on (L2TPv3トンネル認証に用いるパスワード2) l2tp tunnel disconnect time off l2tp keepalive use on 60 3 l2tp keepalive log on l2tp syslog on l2tp local router-id 192.168.0.200 l2tp remote router-id 192.168.0.202 l2tp remote end-id (L2TPv3のリモートエンドID2) tunnel enable 2 # # L2TPv3/IPsecの設定(拠点3) # tunnel select 3 tunnel encapsulation l2tpv3 ipsec tunnel 103 ipsec sa policy 103 3 esp aes-cbc sha-hmac ipsec ike keepalive use 3 on ipsec ike local address 3 192.168.0.200 ipsec ike nat-traversal 3 on ipsec ike pre-shared-key 3 text (IPsecの事前共有鍵3) ipsec ike remote address 3 any ipsec ike remote name 3 (拠点3の名前) key-id l2tp always-on on l2tp hostname (接続相手に通知するセンターのホスト名) l2tp tunnel auth on (L2TPv3トンネル認証に用いるパスワード3) l2tp tunnel disconnect time off l2tp keepalive use on 60 3 l2tp keepalive log on l2tp syslog on l2tp local router-id 192.168.0.200 l2tp remote router-id 192.168.0.203 l2tp remote end-id (L2TPv3のリモートエンドID3) tunnel enable 3 # # L2TP/IPsecの設定(拠点4) # tunnel select 4 tunnel encapsulation l2tp ipsec tunnel 104 ipsec sa policy 104 4 esp aes-cbc sha-hmac ipsec ike keepalive use 4 off ipsec ike local address 4 192.168.0.200 ipsec ike nat-traversal 4 on ipsec ike pre-shared-key 4 text (IPsecの事前共有鍵4) ipsec ike remote address 4 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 4 # # L2TP/IPsecの設定(拠点5) # tunnel select 5 tunnel encapsulation l2tp ipsec tunnel 105 ipsec sa policy 105 5 esp aes-cbc sha-hmac ipsec ike keepalive use 5 off ipsec ike local address 5 192.168.0.200 ipsec ike nat-traversal 5 on ipsec ike pre-shared-key 5 text (IPsecの事前共有鍵5) ipsec ike remote address 5 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 5 # # フィルターの設定 # 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 1031 pass * 192.168.10.2 tcpflag=0x0002/0x0fff * www ip filter 1040 pass * 192.168.0.200 udp * 500 ip filter 1041 pass * 192.168.0.200 udp * 4500 ip filter 1042 pass * 192.168.0.200 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 # # NATの設定 # nat descriptor type 1 masquerade nat descriptor masquerade static 1 1 192.168.0.200 udp 500 nat descriptor masquerade static 1 2 192.168.0.200 udp 4500 nat descriptor masquerade static 1 3 192.168.0.200 esp nat descriptor masquerade static 1 4 192.168.10.2 tcp www # # IPsecのトランスポートモード設定 # ipsec auto refresh on ipsec transport 1 101 udp 1701 ipsec transport 2 102 udp 1701 ipsec transport 3 103 udp 1701 ipsec transport 4 104 udp 1701 ipsec transport 5 105 udp 1701 # # DHCPの設定 # dhcp service server dhcp server rfc2131 compliant except remain-silent dhcp scope 1 192.168.0.2-192.168.0.191/24 # # DNSの設定 # dns server (ISP1から指定されたDNSサーバーのIPアドレス) dns private address spoof on