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CentreCOM ARX640S 設定例集 5.1.5 #9
PPPoEでインターネットに接続している3つの拠点をIPsec(ESP)トンネルで結ぶVPN構築例です。この例では本社と各支社のみを接続する構成とし、支社間の通信は行わないものとします。またこの例では、本社にのみグローバルアドレス1個が固定的に割り当てられており、各支社のルーターのアドレスは不定(動的割り当て)であると仮定しています。
PPPユーザー名 | user@ispA | user@ispB | user@ispC |
PPPパスワード | isppasswdA | isppasswdB | isppasswdC |
PPPoEサービス名 | 指定なし | ||
使用できるIPアドレス | 200.100.10.1/32 | グローバルアドレス1個を接続時に割り当て | |
接続形態 | 端末型(アドレス1個固定) | 端末型(アドレス1個不定) |
WAN側物理インターフェース | gigabitEthernet 0 | ||
WAN側(gigabitEthernet 0.1)IPアドレス | 200.100.10.1/32 | 動的割り当て | |
LAN側(vlan 1)IPアドレス | 192.168.10.1/24 | 192.168.20.1/24 | 192.168.30.1/24 |
VPN接続設定 | |||
ローカルセキュアグループ | 192.168.10.0/24 | 192.168.20.0/24 | 192.168.30.0/24 |
リモートセキュアグループ | 192.168.20.0/24、192.168.30.0/24 | 192.168.10.0/24 | |
トンネル終端アドレス | 不定 | 200.100.10.1 | |
IKE設定 | |||
交換モード | Aggressiveモード | ||
認証方式 | 事前共有鍵(pre-shared key) | ||
事前共有鍵 | secret-ab(文字列)、secret-ac(文字列) | secret-ab(文字列) | secret-ac(文字列) |
ローカルID/リモートID | なし/client_B、なし/client_C | client_B/なし | client_C/なし |
暗号化認証アルゴリズム | 3DES & SHA1-DH2 | ||
有効期限 | 21600秒(6時間)(デフォルト) | ||
DPDによる死活監視 | 行う | ||
起動時のISAKMPネゴシエーション | 行わない | 行う | |
IPsec設定 | |||
SAモード | トンネルモード | ||
セキュリティープロトコル | ESP | ||
暗号化認証アルゴリズム | 3DES & SHA1 | ||
PFSグループ | なし | ||
有効期限 | 3600秒(1時間)(デフォルト) |
ルーターAの設定 |
ppp profile pppoe0 ↓ my-username user@ispA password isppasswdA ↓
interface gigabitEthernet 0 ↓ no shutdown ↓
interface gigabitEthernet 0.1 ↓ ip address 200.100.10.1/32 ↓ ip tcp mss auto ↓ no shutdown ↓ pppoe enable ↓ ppp bind-profile pppoe0 ↓ ip napt inside any ↓ ip ids in protect ↓
interface vlan 1 ↓ ip address 192.168.10.1/24 ↓
ip address-up-always ↓
ip route default gigabitEthernet 0.1 ↓
access-list ip extended pppoe0-in ↓ dynamic permit udp any interface gigabitEthernet 0.1 eq 500 ↓ access-list ip extended pppoe0-out ↓ dynamic permit ip any any ↓ interface gigabitEthernet 0.1 ↓ ip traffic-filter pppoe0-in in ↓ ip traffic-filter pppoe0-out out ↓
isakmp proposal isakmp encryption 3des hash sha1 group 2 ↓
isakmp policy i_B ↓ peer any ↓ mode aggressive ↓ auth preshared key secret-ab ↓ remote-id client_B ↓ proposal isakmp ↓ keepalive enable ↓
isakmp policy i_C ↓ peer any ↓ mode aggressive ↓ auth preshared key secret-ac ↓ remote-id client_C ↓ proposal isakmp ↓ keepalive enable ↓
access-list ip extended ipsec ↓ permit ip any any ↓ ipsec proposal ipsec esp encryption 3des hash sha1 ↓
ipsec policy vpn_B ↓ peer any ↓ access-list ipsec ↓ local-id 192.168.10.0/24 ↓ remote-id 192.168.20.0/24 ↓ proposal ipsec ↓ always-up-sa ↓
ipsec policy vpn_C ↓ peer any ↓ access-list ipsec ↓ local-id 192.168.10.0/24 ↓ remote-id 192.168.30.0/24 ↓ proposal ipsec ↓ always-up-sa ↓
interface tunnel 0 ↓ tunnel mode ipsec ↓ ip unnumbered vlan 1 ↓ ip tcp mss auto ↓ no shutdown ↓ tunnel policy vpn_B ↓
interface tunnel 1 ↓ tunnel mode ipsec ↓ ip unnumbered vlan 1 ↓ ip tcp mss auto ↓ no shutdown ↓ tunnel policy vpn_C ↓
ip route 192.168.20.0/24 tunnel 0 ↓ ip route 192.168.20.0/24 Null 254 ↓
ip route 192.168.30.0/24 tunnel 1 ↓ ip route 192.168.30.0/24 Null 254 ↓
copy running-config startup-config ↓
ルーターBの設定 |
ppp profile pppoe0 ↓ my-username user@ispB password isppasswdB ↓
interface gigabitEthernet 0 ↓ no shutdown ↓
interface gigabitEthernet 0.1 ↓ ip address ipcp ↓ ip tcp mss auto ↓ no shutdown ↓ pppoe enable ↓ ppp bind-profile pppoe0 ↓ ip napt inside any ↓ ip ids in protect ↓
interface vlan 1 ↓ ip address 192.168.20.1/24 ↓
ip address-up-always ↓
ip route default gigabitEthernet 0.1 ↓
access-list ip extended pppoe0-in ↓ access-list ip extended pppoe0-out ↓ dynamic permit ip any any ↓ interface gigabitEthernet 0.1 ↓ ip traffic-filter pppoe0-in in ↓ ip traffic-filter pppoe0-out out ↓
isakmp proposal isakmp encryption 3des hash sha1 group 2 ↓ isakmp policy i_A ↓ peer 200.100.10.1 ↓ mode aggressive ↓ auth preshared key secret-ab ↓ local-id client_B ↓ proposal isakmp ↓ keepalive enable ↓
access-list ip extended ipsec ↓ permit ip any any ↓ ipsec proposal ipsec esp encryption 3des hash sha1 ↓ ipsec policy vpn_A ↓ peer 200.100.10.1 ↓ access-list ipsec ↓ local-id 192.168.20.0/24 ↓ remote-id 192.168.10.0/24 ↓ proposal ipsec ↓ always-up-sa ↓
interface tunnel 0 ↓ tunnel mode ipsec ↓ ip unnumbered vlan 1 ↓ ip tcp mss auto ↓ no shutdown ↓ tunnel policy vpn_A ↓
ip route 192.168.10.0/24 tunnel 0 ↓ ip route 192.168.10.0/24 Null 254 ↓
copy running-config startup-config ↓
ルーターCの設定 |
ppp profile pppoe0 ↓ my-username user@ispC password isppasswdC ↓
interface gigabitEthernet 0 ↓ no shutdown ↓
interface gigabitEthernet 0.1 ↓ ip address ipcp ↓ ip tcp mss auto ↓ no shutdown ↓ pppoe enable ↓ ppp bind-profile pppoe0 ↓ ip napt inside any ↓ ip ids in protect ↓
interface vlan 1 ↓ ip address 192.168.30.1/24 ↓
ip address-up-always ↓
ip route default gigabitEthernet 0.1 ↓
access-list ip extended pppoe0-in ↓ access-list ip extended pppoe0-out ↓ dynamic permit ip any any ↓ interface gigabitEthernet 0.1 ↓ ip traffic-filter pppoe0-in in ↓ ip traffic-filter pppoe0-out out ↓
isakmp proposal isakmp encryption 3des hash sha1 group 2 ↓ isakmp policy i_A ↓ peer 200.100.10.1 ↓ mode aggressive ↓ auth preshared key secret-ac ↓ local-id client_C ↓ proposal isakmp ↓ keepalive enable ↓
access-list ip extended ipsec ↓ permit ip any any ↓ ipsec proposal ipsec esp encryption 3des hash sha1 ↓ ipsec policy vpn_A ↓ peer 200.100.10.1 ↓ access-list ipsec ↓ local-id 192.168.30.0/24 ↓ remote-id 192.168.10.0/24 ↓ proposal ipsec ↓ always-up-sa ↓
interface tunnel 0 ↓ tunnel mode ipsec ↓ ip unnumbered vlan 1 ↓ ip tcp mss auto ↓ no shutdown ↓ tunnel policy vpn_A ↓
ip route 192.168.10.0/24 tunnel 0 ↓ ip route 192.168.10.0/24 Null 254 ↓
copy running-config startup-config ↓
まとめ |
ルーターAのコンフィグ
! service password-encryption ! clock timezone JST 9 ! ! ip address-up-always ppp profile pppoe0 my-username user@ispA password 8 e$QNKMe2ohmPDFBWKSYxCJz8gAA ! interface gigabitEthernet 0 no shutdown ! interface gigabitEthernet 0.1 ip address 200.100.10.1/32 ip tcp mss auto no shutdown pppoe enable ppp bind-profile pppoe0 ip napt inside any ip traffic-filter pppoe0-in in ip traffic-filter pppoe0-out out ip ids in protect ! interface gigabitEthernet 1 shutdown ! interface gigabitEthernet 2 no shutdown ! interface gigabitEthernet 3 no shutdown ! interface gigabitEthernet 4 no shutdown ! interface gigabitEthernet 5 no shutdown ! interface loop 0 shutdown ! interface loop 1 shutdown ! interface tunnel 0 tunnel mode ipsec ip unnumbered vlan 1 ip tcp mss auto no shutdown tunnel policy vpn_B ! interface tunnel 1 tunnel mode ipsec ip unnumbered vlan 1 ip tcp mss auto no shutdown tunnel policy vpn_C ! interface vlan 1 ip address 192.168.10.1/24 no shutdown ! ip route default gigabitEthernet 0.1 ip route 192.168.20.0/24 tunnel 0 ip route 192.168.20.0/24 Null 254 ip route 192.168.30.0/24 tunnel 1 ip route 192.168.30.0/24 Null 254 ! access-list ip extended ipsec permit ip any any access-list ip extended pppoe0-in dynamic permit udp any interface gigabitEthernet 0.1 eq 500 access-list ip extended pppoe0-out dynamic permit ip any any ! isakmp proposal isakmp encryption 3des hash sha1 group 2 ! isakmp policy i_B peer any mode aggressive auth preshared key 8 e$Q8dQupIM3xK8bcuoRYavULQAA remote-id client_B proposal isakmp keepalive enable ! isakmp policy i_C peer any mode aggressive auth preshared key 8 e$Q8dQupIM3xK/jvCLYInwJRAAA remote-id client_C proposal isakmp keepalive enable ! ipsec proposal ipsec esp encryption 3des hash sha1 ! ipsec policy vpn_B peer any access-list ipsec local-id 192.168.10.0/24 remote-id 192.168.20.0/24 proposal ipsec always-up-sa ! ipsec policy vpn_C peer any access-list ipsec local-id 192.168.10.0/24 remote-id 192.168.30.0/24 proposal ipsec always-up-sa ! ! ! ! end |
ルーターBのコンフィグ
! service password-encryption ! clock timezone JST 9 ! ! ip address-up-always ppp profile pppoe0 my-username user@ispB password 8 e$QNKMe2ohmPDGyL5Yl1OWFlAAA ! interface gigabitEthernet 0 no shutdown ! interface gigabitEthernet 0.1 ip address ipcp ip tcp mss auto no shutdown pppoe enable ppp bind-profile pppoe0 ip napt inside any ip traffic-filter pppoe0-in in ip traffic-filter pppoe0-out out ip ids in protect ! interface gigabitEthernet 1 shutdown ! interface gigabitEthernet 2 no shutdown ! interface gigabitEthernet 3 no shutdown ! interface gigabitEthernet 4 no shutdown ! interface gigabitEthernet 5 no shutdown ! interface loop 0 shutdown ! interface loop 1 shutdown ! interface tunnel 0 tunnel mode ipsec ip unnumbered vlan 1 ip tcp mss auto no shutdown tunnel policy vpn_A ! interface vlan 1 ip address 192.168.20.1/24 no shutdown ! ip route default gigabitEthernet 0.1 ip route 192.168.10.0/24 tunnel 0 ip route 192.168.10.0/24 Null 254 ! access-list ip extended ipsec permit ip any any access-list ip extended pppoe0-in access-list ip extended pppoe0-out dynamic permit ip any any ! isakmp proposal isakmp encryption 3des hash sha1 group 2 ! isakmp policy i_A peer 200.100.10.1 mode aggressive auth preshared key 8 e$Q8dQupIM3xK8bcuoRYavULQAA local-id client_B proposal isakmp keepalive enable ! ipsec proposal ipsec esp encryption 3des hash sha1 ! ipsec policy vpn_A peer 200.100.10.1 access-list ipsec local-id 192.168.20.0/24 remote-id 192.168.10.0/24 proposal ipsec always-up-sa ! ! ! ! end |
ルーターCのコンフィグ
! service password-encryption ! clock timezone JST 9 ! ! ip address-up-always ppp profile pppoe0 my-username user@ispC password 8 e$QNKMe2ohmPDH6RNYgx+E/aQAA ! interface gigabitEthernet 0 no shutdown ! interface gigabitEthernet 0.1 ip address ipcp ip tcp mss auto no shutdown pppoe enable ppp bind-profile pppoe0 ip napt inside any ip traffic-filter pppoe0-in in ip traffic-filter pppoe0-out out ip ids in protect ! interface gigabitEthernet 1 shutdown ! interface gigabitEthernet 2 no shutdown ! interface gigabitEthernet 3 no shutdown ! interface gigabitEthernet 4 no shutdown ! interface gigabitEthernet 5 no shutdown ! interface loop 0 shutdown ! interface loop 1 shutdown ! interface tunnel 0 tunnel mode ipsec ip unnumbered vlan 1 ip tcp mss auto no shutdown tunnel policy vpn_A ! interface vlan 1 ip address 192.168.30.1/24 no shutdown ! ip route default gigabitEthernet 0.1 ip route 192.168.10.0/24 tunnel 0 ip route 192.168.10.0/24 Null 254 ! access-list ip extended ipsec permit ip any any access-list ip extended pppoe0-in access-list ip extended pppoe0-out dynamic permit ip any any ! isakmp proposal isakmp encryption 3des hash sha1 group 2 ! isakmp policy i_A peer 200.100.10.1 mode aggressive auth preshared key 8 e$Q8dQupIM3xK/jvCLYInwJRAAA local-id client_C proposal isakmp keepalive enable ! ipsec proposal ipsec esp encryption 3des hash sha1 ! ipsec policy vpn_A peer 200.100.10.1 access-list ipsec local-id 192.168.30.0/24 remote-id 192.168.10.0/24 proposal ipsec always-up-sa ! ! ! ! end |
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