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CentreCOM ARX640S 設定例集 5.1.5 #8
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8個を固定的に割り当てられているサイトと、グローバルアドレス1個を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 | 4.4.4.0/29(4.4.4.0〜4.4.4.7) | グローバルアドレス1個を接続時に割り当て |
接続形態 | LAN型(アドレス8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 | Unnumbered | 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 |
DMZ側(gigabitEthernet 1)IPアドレス | 4.4.4.1/29 | - |
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 |
リモートセキュアグループ | 192.168.20.0/24 | 192.168.10.0/24 |
トンネル終端アドレス | 不定 | 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/client | client/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 ↓
ip nat pool pool 4.4.4.2 4.4.4.2 ↓
interface gigabitEthernet 0.1 ↓ ip unnumbered gigabitEthernet 1 ↓ ip tcp mss auto ↓ no shutdown ↓ pppoe enable ↓ ppp bind-profile pppoe0 ↓ ip napt inside 192.168.10.0/24 pool pool ↓ ip ids in protect ↓
interface gigabitEthernet 1 ↓ ip address 4.4.4.1/29 ↓ no shutdown ↓
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 tcp any 4.4.4.3/32 eq 80 ↓ dynamic permit tcp any 4.4.4.4/32 eq 25 ↓ dynamic permit tcp any 4.4.4.4/32 eq 53 ↓ dynamic permit udp any 4.4.4.4/32 eq 53 ↓ 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 isakmp ↓ peer any ↓ mode aggressive ↓ auth preshared key secret ↓ remote-id client ↓ proposal isakmp ↓ keepalive enable ↓
access-list ip extended ipsec ↓ permit ip any any ↓ ipsec proposal ipsec esp encryption 3des hash sha1 ↓ ipsec policy ipsec ↓ peer any ↓ access-list ipsec ↓ local-id 192.168.10.0/24 ↓ 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 ipsec ↓
ip route 192.168.20.0/24 tunnel 0 ↓ ip route 192.168.20.0/24 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 isakmp ↓ peer 4.4.4.1 ↓ mode aggressive ↓ auth preshared key secret ↓ local-id client ↓ proposal isakmp ↓ keepalive enable ↓
access-list ip extended ipsec ↓ permit ip any any ↓ ipsec proposal ipsec esp encryption 3des hash sha1 ↓ ipsec policy ipsec ↓ peer 4.4.4.1 ↓ 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 ipsec ↓
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$QNKMe2ohmPDFBWKSYxCJz8gAA ! interface gigabitEthernet 0 no shutdown ! interface gigabitEthernet 0.1 ip unnumbered gigabitEthernet 1 ip tcp mss auto no shutdown pppoe enable ppp bind-profile pppoe0 ip napt inside 192.168.10.0/24 pool pool ip traffic-filter pppoe0-in in ip traffic-filter pppoe0-out out ip ids in protect ! interface gigabitEthernet 1 ip address 4.4.4.1/29 no shutdown ! interface gigabitEthernet 2 no shutdown ! interface gigabitEthernet 3 no shutdown ! interface gigabitEthernet 4 no shutdown ! interface gigabitEthernet 5 no shutdown ! interface loop 0 shutdown ! interface loop 1 shutdown ! interface tunnel 0 tunnel mode ipsec ip unnumbered vlan 1 ip tcp mss auto no shutdown tunnel policy ipsec ! interface vlan 1 ip address 192.168.10.1/24 no shutdown ! ip route default gigabitEthernet 0.1 ip route 192.168.20.0/24 tunnel 0 ip route 192.168.20.0/24 Null 254 ! access-list ip extended ipsec permit ip any any access-list ip extended pppoe0-in dynamic permit tcp any 4.4.4.3/32 eq 80 dynamic permit tcp any 4.4.4.4/32 eq 25 dynamic permit tcp any 4.4.4.4/32 eq 53 dynamic permit udp any 4.4.4.4/32 eq 53 dynamic permit udp any interface gigabitEthernet 0.1 eq 500 access-list ip extended pppoe0-out dynamic permit ip any any ! isakmp proposal isakmp encryption 3des hash sha1 group 2 ! isakmp policy isakmp peer any mode aggressive auth preshared key 8 e$I3eQu7yNuLxQA remote-id client proposal isakmp keepalive enable ! ipsec proposal ipsec esp encryption 3des hash sha1 ! ipsec policy ipsec peer any access-list ipsec local-id 192.168.10.0/24 remote-id 192.168.20.0/24 proposal ipsec always-up-sa ! ip nat pool pool 4.4.4.2 4.4.4.2 ! ! ! ! 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$QNKMe2ohmPDGyL5Yl1OWFlAAA ! interface gigabitEthernet 0 no shutdown ! interface gigabitEthernet 0.1 ip address ipcp ip tcp mss auto no shutdown pppoe enable ppp bind-profile pppoe0 ip napt inside any ip traffic-filter pppoe0-in in ip traffic-filter pppoe0-out out ip ids in protect ! interface gigabitEthernet 1 shutdown ! interface gigabitEthernet 2 no shutdown ! interface gigabitEthernet 3 no shutdown ! interface gigabitEthernet 4 no shutdown ! interface gigabitEthernet 5 no shutdown ! interface loop 0 shutdown ! interface loop 1 shutdown ! interface tunnel 0 tunnel mode ipsec ip unnumbered vlan 1 ip tcp mss auto no shutdown tunnel policy ipsec ! interface vlan 1 ip address 192.168.20.1/24 no shutdown ! ip route default gigabitEthernet 0.1 ip route 192.168.10.0/24 tunnel 0 ip route 192.168.10.0/24 Null 254 ! access-list ip extended ipsec permit ip any any access-list ip extended pppoe0-in access-list ip extended pppoe0-out dynamic permit ip any any ! isakmp proposal isakmp encryption 3des hash sha1 group 2 ! isakmp policy isakmp peer 4.4.4.1 mode aggressive auth preshared key 8 e$I3eQu7yNuLxQA local-id client proposal isakmp keepalive enable ! ipsec proposal ipsec esp encryption 3des hash sha1 ! ipsec policy ipsec peer 4.4.4.1 access-list ipsec local-id 192.168.20.0/24 remote-id 192.168.10.0/24 proposal ipsec always-up-sa ! ! ! ! end |
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