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CentreCOM ARX640S 設定例集 5.1.5 #27
PPPoEでインターネットに接続している2つの拠点をIPsecで結ぶVPN構築例です。この例では、グローバルアドレスを固定的に割り当てられているサイトと、動的に割り当てられるサイトの間を IPsec(ESP) のトンネルで接続します。
PPPユーザー名 | user@ispA | user@ispB |
PPPパスワード | isppasswdA | isppasswdB |
PPPoEサービス名 | 指定なし | |
使用できるIPアドレス | 4.4.4.1/32 | グローバルアドレス1個(動的割り当て) |
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) |
DNSサーバー | 接続時に通知される | - |
WAN側物理インターフェース | gigabitEthernet 0 | gigabitEthernet 0 |
WAN側(gigabitEthernet 0.1)IPアドレス | 4.4.4.1/32 | 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 |
VPN接続設定 | ||
ローカルセキュアグループ | 0.0.0.0/0 | 192.168.20.0/24 |
リモートセキュアグループ | 192.168.20.0/24 | 0.0.0.0/0 |
トンネル終端アドレス | ANY | 4.4.4.1 |
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(文字列) | |
ローカルID/リモートID | なし/vpn | vpn/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 | 行わない | |
起動時のISAKMPネゴシエーション | 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 4.4.4.1/32 ↓ 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 ↓ peer any ↓ mode aggressive ↓ auth preshared key secret ↓ remote-id vpn ↓ proposal isakmp ↓
access-list ip extended ipsec ↓ permit ip any any ↓ ipsec proposal ipsec esp encryption 3des hash sha1 ↓ ipsec policy vpn ↓ peer any ↓ access-list ipsec ↓ local-id 0.0.0.0/0 ↓ remote-id 192.168.20.0/24 ↓ proposal ipsec ↓ always-up-sa ↓
interface tunnel 0 ↓ tunnel mode ipsec ↓ ip unnumbered vlan 1 ↓ ip tcp mss auto ↓ no shutdown ↓ tunnel policy vpn ↓
ip route 192.168.20.0/24 tunnel 0 ↓ ip route 192.168.20.0/24 Null 254 ↓
proxydns ip enable ↓
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 4.4.4.1/32 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 ↓ peer 4.4.4.1 ↓ mode aggressive ↓ auth preshared key secret ↓ local-id vpn ↓ proposal isakmp ↓
access-list ip extended ipsec ↓ permit ip any any ↓ ipsec proposal ipsec esp encryption 3des hash sha1 ↓ ipsec policy vpn ↓ peer 4.4.4.1 ↓ access-list ipsec ↓ local-id 192.168.20.0/24 ↓ remote-id 0.0.0.0/0 ↓ proposal ipsec ↓ always-up-sa ↓
interface tunnel 0 ↓ tunnel mode ipsec ↓ ip unnumbered vlan 1 ↓ ip tcp mss auto ↓ no shutdown ↓ tunnel policy vpn ↓
ip route default tunnel 0 ↓
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$QNKMe2ohmPDFBWKSYxCJz8gAA ! interface gigabitEthernet 0 no shutdown ! interface gigabitEthernet 0.1 ip address 4.4.4.1/32 ip tcp mss auto no shutdown pppoe enable ppp bind-profile pppoe0 ip napt inside any ip traffic-filter pppoe0-in in ip traffic-filter pppoe0-out out ip ids in protect ! interface gigabitEthernet 1 shutdown ! interface gigabitEthernet 2 no shutdown ! interface gigabitEthernet 3 no shutdown ! interface gigabitEthernet 4 no shutdown ! interface gigabitEthernet 5 no shutdown ! interface loop 0 shutdown ! interface loop 1 shutdown ! interface tunnel 0 tunnel mode ipsec ip unnumbered vlan 1 ip tcp mss auto no shutdown tunnel policy vpn ! interface vlan 1 ip address 192.168.10.1/24 no shutdown ! ip route default gigabitEthernet 0.1 ip route 192.168.20.0/24 tunnel 0 ip route 192.168.20.0/24 Null 254 ! access-list ip extended ipsec permit ip any any access-list ip extended pppoe0-in dynamic permit udp any interface gigabitEthernet 0.1 eq 500 access-list ip extended pppoe0-out dynamic permit ip any any ! isakmp proposal isakmp encryption 3des hash sha1 group 2 ! isakmp policy i peer any mode aggressive auth preshared key 8 e$I3eQu7yNuLxQA remote-id vpn proposal isakmp ! ipsec proposal ipsec esp encryption 3des hash sha1 ! ipsec policy vpn peer any access-list ipsec local-id 0.0.0.0/0 remote-id 192.168.20.0/24 proposal ipsec always-up-sa ! proxydns ip enable ! ! ! 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$QNKMe2ohmPDGyL5Yl1OWFlAAA ! interface gigabitEthernet 0 no shutdown ! interface gigabitEthernet 0.1 ip address ipcp ip tcp mss auto no shutdown pppoe enable ppp bind-profile pppoe0 ip napt inside any ip traffic-filter pppoe0-in in ip traffic-filter pppoe0-out out ip ids in protect ! interface gigabitEthernet 1 shutdown ! interface gigabitEthernet 2 no shutdown ! interface gigabitEthernet 3 no shutdown ! interface gigabitEthernet 4 no shutdown ! interface gigabitEthernet 5 no shutdown ! interface loop 0 shutdown ! interface loop 1 shutdown ! interface tunnel 0 tunnel mode ipsec ip unnumbered vlan 1 ip tcp mss auto no shutdown tunnel policy vpn ! interface vlan 1 ip address 192.168.20.1/24 no shutdown ! ip route default tunnel 0 ip route 4.4.4.1/32 gigabitEthernet 0.1 ! access-list ip extended ipsec permit ip any any access-list ip extended pppoe0-in access-list ip extended pppoe0-out dynamic permit ip any any ! isakmp proposal isakmp encryption 3des hash sha1 group 2 ! isakmp policy i peer 4.4.4.1 mode aggressive auth preshared key 8 e$I3eQu7yNuLxQA local-id vpn proposal isakmp ! ipsec proposal ipsec esp encryption 3des hash sha1 ! ipsec policy vpn peer 4.4.4.1 access-list ipsec local-id 192.168.20.0/24 remote-id 0.0.0.0/0 proposal ipsec always-up-sa ! ! ! ! end |
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