線路配置

如下圖所示，企業分支通過IPsec VPN接入企業總部，有如下具體需求：

• 總部網關Device A和各分支網關Device B、Device C之間建立IPsec隧道，對總部網絡4.4.4.0/24分別與分支網絡5.5.5.0/24和6.6.6.0/24之間的數據進行安全保護。

• 使用IKE協商方式建立IPsec SA，采用ESP安全協議，DES加密算法，HMAC-SHA-1-96認證算法。

• IKE協商采用預共享密鑰認證方式、3DES加密算法、HMAC-SHA1認證算法。

• 總部網關Device A采用IKE安全策略模板方式，分支網關Device B和DeviceC采用IKE安全策略方式。

圖-1 IPsec安全策略模板方式配置組網圖

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配置步驟

配置Device A

1. 配置接口IP地址

# 根據組網圖中規劃的信息，配置各接口的IP地址，具體配置步驟如下。

<DeviceA> system-view

[DeviceA] interface gigabitethernet 1/0/1

[DeviceA-GigabitEthernet1/0/1] ip address 1.1.1.1 255.255.255.0

[DeviceA-GigabitEthernet1/0/1] quit

請參考以上步驟配置其他接口的IP地址，具體配置步驟略。

2. 配置靜態路由

本舉例僅以靜態路由方式配置路由信息。實際組網中，請根據具體情況選擇相應的路由配置方式。

# 請根據組網圖中規劃的信息，配置靜態路由，本舉例假設到達對端網關設備和分支網絡的下一跳IP地址為1.1.1.2，實際使用中請以具體組網情況為準，具體配置步驟如下。

[DeviceA] ip route-static 2.2.2.2 24 1.1.1.2

[DeviceA] ip route-static 3.3.3.3 24 1.1.1.2

[DeviceA] ip route-static 5.5.5.0 255.255.255.0 1.1.1.2

[DeviceA] ip route-static 6.6.6.0 255.255.255.0 1.1.1.2

3. 配置接口加入安全域。

# 請根據組網圖中規劃的信息，將接口加入對應的安全域，具體配置步驟如下。

[DeviceA] security-zone name untrust

[DeviceA-security-zone-Untrust] import interface gigabitethernet 1/0/1

[DeviceA-security-zone-Untrust] quit

[DeviceA] security-zone name trust

[DeviceA-security-zone-Trust] import interface gigabitethernet 1/0/2

[DeviceA-security-zone-Trust] quit

4. 配置安全策略

1. 配置安全策略放行Untrust與Local安全域之間的流量，用於設備之間可以建立IPsec隧道。

# 配置名稱為ipseclocalout1的安全策規則，使Device A可以向Device B發送IPsec隧道協商報文，具體配置步驟如下。

[DeviceA] security-policy ip

[DeviceA-security-policy-ip] rule name ipseclocalout1

[DeviceA-security-policy-ip-1-ipseclocalout1] source-zone local

[DeviceA-security-policy-ip-1-ipseclocalout1] destination-zone untrust

[DeviceA-security-policy-ip-1-ipseclocalout1] source-ip-host 1.1.1.1

[DeviceA-security-policy-ip-1-ipseclocalout1] destination-ip-host 2.2.2.2

[DeviceA-security-policy-ip-1-ipseclocalout1] action pass

[DeviceA-security-policy-ip-1-ipseclocalout1] quit

# 配置名稱為ipseclocalin1的安全策略規則，使Device A可以接收和處理來自Device B的IPsec隧道協商報文，具體配置步驟如下。

[DeviceA-security-policy-ip] rule name ipseclocalin1

[DeviceA-security-policy-ip-2-ipseclocalin1] source-zone untrust

[DeviceA-security-policy-ip-2-ipseclocalin1] destination-zone local

[DeviceA-security-policy-ip-2-ipseclocalin1] source-ip-host 2.2.2.2

[DeviceA-security-policy-ip-2-ipseclocalin1] destination-ip-host 1.1.1.1

[DeviceA-security-policy-ip-2-ipseclocalin1] action pass

[DeviceA-security-policy-ip-2-ipseclocalin1] quit

# 配置名稱為ipseclocalout2的安全策規則，使Device A可以向Device C發送IPsec隧道協商報文，具體配置步驟如下。

[DeviceA-security-policy-ip] rule name ipseclocalout2

[DeviceA-security-policy-ip-3-ipseclocalout2] source-zone local

[DeviceA-security-policy-ip-3-ipseclocalout2] destination-zone untrust

[DeviceA-security-policy-ip-3-ipseclocalout2] source-ip-host 1.1.1.1

[DeviceA-security-policy-ip-3-ipseclocalout2] destination-ip-host 3.3.3.3

[DeviceA-security-policy-ip-3-ipseclocalout2] action pass

[DeviceA-security-policy-ip-3-ipseclocalout2] quit

# 配置名稱為ipseclocalin2的安全策略規則，使Device A可以接收和處理來自Device C的IPsec隧道協商報文，具體配置步驟如下。

[DeviceA-security-policy-ip] rule name ipseclocalin2

[DeviceA-security-policy-ip-4-ipseclocalin2] source-zone untrust

[DeviceA-security-policy-ip-4-ipseclocalin2] destination-zone local

[DeviceA-security-policy-ip-4-ipseclocalin2] source-ip-host 3.3.3.3

[DeviceA-security-policy-ip-4-ipseclocalin2] destination-ip-host 1.1.1.1

[DeviceA-security-policy-ip-4-ipseclocalin2] action pass

[DeviceA-security-policy-ip-4-ipseclocalin2] quit

2. 配置安全策略放行Host A與Host B、Host C之間的流量

# 配置名稱為trust-untrust的安全策略規則，使Host A訪問Host B的報文可通，具體配置步驟如下。

[DeviceA-security-policy-ip] rule name trust-untrust

[DeviceA-security-policy-ip-5-trust-untrust] source-zone trust

[DeviceA-security-policy-ip-5-trust-untrust] destination-zone untrust

[DeviceA-security-policy-ip-5-trust-untrust] source-ip-subnet 4.4.4.0 24

[DeviceA-security-policy-ip-5-trust-untrust] destination-ip-subnet 5.5.5.0 24

[DeviceA-security-policy-ip-5-trust-untrust] action pass

[DeviceA-security-policy-ip-5-trust-untrust] quit

# 配置名稱為untrust-trust的安全策略規則，使Host B訪問Host A的報文可通，具體配置步驟如下。

[DeviceA-security-policy-ip] rule name untrust-trust

[DeviceA-security-policy-ip-6-untrust-trust] source-zone untrust

[DeviceA-security-policy-ip-6-untrust-trust] destination-zone trust

[DeviceA-security-policy-ip-6-untrust-trust] source-ip-subnet 5.5.5.0 24

[DeviceA-security-policy-ip-6-untrust-trust] destination-ip-subnet 4.4.4.0 24

[DeviceA-security-policy-ip-6-untrust-trust] action pass

[DeviceA-security-policy-ip-6-untrust-trust] quit

# 配置名稱為trust-untrust的安全策略規則，使Host A訪問Host C的報文可通，具體配置步驟如下。

[DeviceA-security-policy-ip] rule name trust-untrust

[DeviceA-security-policy-ip-7-trust-untrust] source-zone trust

[DeviceA-security-policy-ip-7-trust-untrust] destination-zone untrust

[DeviceA-security-policy-ip-7-trust-untrust] source-ip-subnet 4.4.4.0 24

[DeviceA-security-policy-ip-7-trust-untrust] destination-ip-subnet 6.6.6.0 24

[DeviceA-security-policy-ip-7-trust-untrust] action pass

[DeviceA-security-policy-ip-7-trust-untrust] quit

# 配置名稱為untrust-trust的安全策略規則，使Host C訪問Host A的報文可通，具體配置步驟如下。

[DeviceA-security-policy-ip] rule name untrust-trust

[DeviceA-security-policy-ip-8-untrust-trust] source-zone untrust

[DeviceA-security-policy-ip-8-untrust-trust] destination-zone trust

[DeviceA-security-policy-ip-8-untrust-trust] source-ip-subnet 6.6.6.0 24

[DeviceA-security-policy-ip-8-untrust-trust] destination-ip-subnet 4.4.4.0 24

[DeviceA-security-policy-ip-8-untrust-trust] action pass

[DeviceA-security-policy-ip-8-untrust-trust] quit

[DeviceA-security-policy-ip] quit

5. 配置IPsec安全提議，協商封裝報文使用的各種安全協議

# 創建IPsec安全提議，兩端配置的安全提議參數需要完全相同，具體配置步驟如下。

[DeviceA] ipsec transform-set tran1

[DeviceA-ipsec-transform-set-tran1] encapsulation-mode tunnel

[DeviceA-ipsec-transform-set-tran1] protocol esp

[DeviceA-ipsec-transform-set-tran1] esp encryption-algorithm des-cbc

[DeviceA-ipsec-transform-set-tran1] esp authentication-algorithm sha1

[DeviceA-ipsec-transform-set-tran1] quit

6. 配置IKE keychain，約定通信雙方使用的密鑰信息

# 創建並配置名為key1的IKE keychain，指定與地址為2.2.2.2的對端使用的預共享密鑰為明文123。

[DeviceA] ike keychain key1

[DeviceA-ike-keychain-key1] pre-shared-key address 2.2.2.2 key simple 123

[DeviceA-ike-keychain-key1] quit

# 創建並配置名為key2的IKE keychain，指定與地址為3.3.3.3的對端使用的預共享密鑰為明文456。

[DeviceA] ike keychain key2

[DeviceA-ike-keychain-key2] pre-shared-key address 3.3.3.3 key simple 456

[DeviceA-ike-keychain-key2] quit

7. 配置IKE profile，約定建立IKE SA所需的安全參數

[DeviceA] ike profile profile1

[DeviceA-ike-profile-profile1] keychain key1

[DeviceA-ike-profile-profile1] keychain key2

[DeviceA-ike-profile-profile1] match remote identity address 2.2.2.2 255.255.255.0

[DeviceA-ike-profile-profile1] match remote identity address 3.3.3.3 255.255.255.0

[DeviceA-ike-profile-profile1] quit

8. 配置IPsec安全策略模板，用於創建IPsec安全策略

# 創建並配置名為temp1的IPsec安全策略模板，引用安全提議tran1

[DeviceA] ipsec policy-template temp1 1

[DeviceA-ipsec-policy-template-temp1-1] transform-set tran1

[DeviceA-ipsec-policy-template-temp1-1] ike-profile profile1

9. 引用安全策略模板temp1創建一條IKE協商方式的安全策略policy1，建立IPsec隧道，保護需要防護的數據流

[DeviceA] ipsec policy map1 10 isakmp template temp1

10. 配置IKE提議，定義雙方進行IKE協商所需的安全參數

# 創建並配置IKE提議1，指定使用預共享密鑰認證方式、3DES加密算法、HMAC-SHA1認證算法。

[DeviceA] ike proposal 1

[DeviceA-ike-proposal-1] encryption-algorithm 3des-cbc

[DeviceA-ike-proposal-1] authentication-algorithm sha

[DeviceA-ike-proposal-1] authentication-method pre-share

[DeviceA-ike-proposal-1] quit

11. 在接口下引用IPsec安全策略，對接口上的流量進行保護

[DeviceA] interface gigabitethernet 1/0/1

[DeviceA-GigabitEthernet1/0/1] ipsec apply policy map1

[DeviceA-GigabitEthernet1/0/1] quit

配置Device B

1. 配置接口IP地址

# 根據組網圖中規劃的信息，配置各接口的IP地址，具體配置步驟如下。

<DeviceB> system-view

[DeviceB] interface gigabitethernet 1/0/1

[DeviceB-GigabitEthernet1/0/1] ip address 2.2.2.2 255.255.255.0

[DeviceB-GigabitEthernet1/0/1] quit

請參考以上步驟配置其他接口的IP地址，具體配置步驟略。

2. 配置靜態路由

本舉例僅以靜態路由方式配置路由信息。實際組網中，請根據具體情況選擇相應的路由配置方式。

# 請根據組網圖中規劃的信息，配置靜態路由，本舉例假設到達對端網關設備和總部網絡的下一跳IP地址為2.2.2.3，實際使用中請以具體組網情況為準，具體配置步驟如下。

[DeviceB] ip route-static 4.4.4.0 24 2.2.2.3

[DeviceB] ip route-static 1.1.1.1 24 2.2.2.3

3. 配置接口加入安全域。

# 請根據組網圖中規劃的信息，將接口加入對應的安全域，具體配置步驟如下。

[DeviceB] security-zone name untrust

[DeviceB-security-zone-Untrust] import interface gigabitethernet 1/0/1

[DeviceB-security-zone-Untrust] quit

[DeviceB] security-zone name trust

[DeviceB-security-zone-Trust] import interface gigabitethernet 1/0/2

[DeviceB-security-zone-Trust] quit

4. 配置安全策略

1. 配置安全策略放行Untrust與Local安全域之間的流量，用於設備之間可以建立IPsec隧道。

# 配置名稱為ipseclocalout的安全策規則，使Device B可以向Device A發送IPsec隧道協商報文，具體配置步驟如下。

[DeviceB] security-policy ip

[DeviceB-security-policy-ip] rule name ipseclocalout

[DeviceB-security-policy-ip-1-ipseclocalout] source-zone local

[DeviceB-security-policy-ip-1-ipseclocalout] destination-zone untrust

[DeviceB-security-policy-ip-1-ipseclocalout] source-ip-host 2.2.2.2

[DeviceB-security-policy-ip-1-ipseclocalout] destination-ip-host 1.1.1.1

[DeviceB-security-policy-ip-1-ipseclocalout] action pass

[DeviceB-security-policy-ip-1-ipseclocalout] quit

# 配置名稱為ipseclocalin的安全策略規則，使Device B可以接收和處理來自Device A的IPsec隧道協商報文，具體配置步驟如下。

[DeviceB-security-policy-ip] rule name ipseclocalin

[DeviceB-security-policy-ip-2-ipseclocalin] source-zone untrust

[DeviceB-security-policy-ip-2-ipseclocalin] destination-zone local

[DeviceB-security-policy-ip-2-ipseclocalin] source-ip-host 1.1.1.1

[DeviceB-security-policy-ip-2-ipseclocalin] destination-ip-host 2.2.2.2

[DeviceB-security-policy-ip-2-ipseclocalin] action pass

[DeviceB-security-policy-ip-2-ipseclocalin] quit

2. 配置安全策略放行Host B與Host A之間的流量

# 配置名稱為trust-untrust的安全策略規則，使Host B訪問Host A的報文可通，具體配置步驟如下。

[DeviceB-security-policy-ip] rule name trust-untrust

[DeviceB-security-policy-ip-3-trust-untrust] source-zone trust

[DeviceB-security-policy-ip-3-trust-untrust] destination-zone untrust

[DeviceB-security-policy-ip-3-trust-untrust] source-ip-subnet 5.5.5.0 24

[DeviceB-security-policy-ip-3-trust-untrust] destination-ip-subnet 4.4.4.0 24

[DeviceB-security-policy-ip-3-trust-untrust] action pass

[DeviceB-security-policy-ip-3-trust-untrust] quit

# 配置名稱為untrust-trust的安全策略規則，使Host A訪問Host B的報文可通，具體配置步驟如下。

[DeviceB-security-policy-ip] rule name untrust-trust

[DeviceB-security-policy-ip-4-untrust-trust] source-zone untrust

[DeviceB-security-policy-ip-4-untrust-trust] destination-zone trust

[DeviceB-security-policy-ip-4-untrust-trust] source-ip-subnet 4.4.4.0 24

[DeviceB-security-policy-ip-4-untrust-trust] destination-ip-subnet 5.5.5.0 24

[DeviceB-security-policy-ip-4-untrust-trust] action pass

[DeviceB-security-policy-ip-4-untrust-trust] quit

[DeviceB-security-policy-ip] quit

5. 配置ACL，定義需要保護的數據流

# 配置IPv4高級ACL 3000，定義要保護由子網5.5.5.0/24去往子網4.4.4.0/24的數據流。

[DeviceB] acl advanced 3000

[DeviceB-acl-ipv4-adv-3000] rule permit ip source 5.5.5.0 0.0.0.255 destination 4.4.4.0 0.0.0.255

[DeviceB-acl-ipv4-adv-3000] quit

6. 配置IPsec安全提議，協商封裝報文使用的各種安全協議

# 創建IPsec安全提議，兩端配置的安全提議參數需要完全相同，具體配置步驟如下。

[DeviceB] ipsec transform-set tran1

[DeviceB-ipsec-transform-set-tran1] encapsulation-mode tunnel

[DeviceB-ipsec-transform-set-tran1] protocol esp

[DeviceB-ipsec-transform-set-tran1] esp encryption-algorithm des-cbc

[DeviceB-ipsec-transform-set-tran1] esp authentication-algorithm sha1

[DeviceB-ipsec-transform-set-tran1] quit

7. 配置IKE keychain，約定通信雙方使用的密鑰信息

# 創建並配置名為key1的IKE keychain，指定與地址為1.1.1.1的對端使用的預共享密鑰為明文123。

[DeviceB] ike keychain key1

[DeviceB-ike-keychain-key1] pre-shared-key address 1.1.1.1 key simple 123

[DeviceB-ike-keychain-key1] quit

8. 配置IKE profile，約定建立IKE SA所需的安全參數

[DeviceB] ike profile profile1

[DeviceB-ike-profile-profile1] keychain key1

[DeviceB-ike-profile-profile1] match remote identity address 1.1.1.1 255.255.255.0

[DeviceB-ike-profile-profile1] quit

9. 配置ISAKMP方式的安全策略，建立IPsec隧道，保護需要防護的數據流

# 創建並配置名為map1的IPsec安全策略，引用安全提議tran1，引用ACL 3000，並指定IPsec隧道的對端地址為1.1.1.1。

[DeviceB] ipsec policy map1 10 isakmp

[DeviceB-ipsec-policy-isakmp-map1-10] transform-set tran1

[DeviceB-ipsec-policy-isakmp-map1-10] security acl 3000

[DeviceB-ipsec-policy-isakmp-map1-10] local-address 2.2.2.2

[DeviceB-ipsec-policy-isakmp-map1-10] remote-address 1.1.1.1

[DeviceB-ipsec-policy-isakmp-map1-10] ike-profile profile1

[DeviceB-ipsec-policy-isakmp-map1-10] quit

10. 配置IKE提議，定義雙方進行IKE協商所需的安全參數

# 創建並配置IKE提議1，指定預共享密鑰認證方式、3DES加密算法、HMAC-SHA1認證算法。

[DeviceB] ike proposal 1

[DeviceB-ike-proposal-1] encryption-algorithm 3des-cbc

[DeviceB-ike-proposal-1] authentication-algorithm sha

[DeviceB-ike-proposal-1] authentication-method pre-share

[DeviceB-ike-proposal-1] quit

11. 在接口上應用IPsec安全策略，對接口上的流量進行保護

[DeviceB] interface gigabitethernet 1/0/1

[DeviceB-GigabitEthernet1/0/1] ipsec apply policy map1

[DeviceB-GigabitEthernet1/0/1] quit

配置Device C

1. 配置接口IP地址

# 根據組網圖中規劃的信息，配置各接口的IP地址，具體配置步驟如下。

<DeviceC> system-view

[DeviceC] interface gigabitethernet 1/0/1

[DeviceC-GigabitEthernet1/0/1] ip address 3.3.3.3 255.255.255.0

[DeviceC-GigabitEthernet1/0/1] quit

請參考以上步驟配置其他接口的IP地址，具體配置步驟略。

2. 配置靜態路由

本舉例僅以靜態路由方式配置路由信息。實際組網中，請根據具體情況選擇相應的路由配置方式。

# 請根據組網圖中規劃的信息，配置靜態路由，本舉例假設到達對端網關設備和總部網絡的下一跳IP地址為3.3.3.4，實際使用中請以具體組網情況為準，具體配置步驟如下。

[DeviceC] ip route-static 4.4.4.0 24 3.3.3.4

[DeviceC] ip route-static 1.1.1.1 24 3.3.3.4

3. 配置接口加入安全域。

# 請根據組網圖中規劃的信息，將接口加入對應的安全域，具體配置步驟如下。

[DeviceC] security-zone name untrust

[DeviceC-security-zone-Untrust] import interface gigabitethernet 1/0/1

[DeviceC-security-zone-Untrust] quit

[DeviceC] security-zone name trust

[DeviceC-security-zone-Trust] import interface gigabitethernet 1/0/2

[DeviceC-security-zone-Trust] quit

4. 配置安全策略

1. 配置安全策略放行Untrust與Local安全域之間的流量，用於設備之間可以建立IPsec隧道。

# 配置名稱為ipseclocalout的安全策規則，使Device C可以向Device A發送IPsec隧道協商報文，具體配置步驟如下。

[DeviceC] security-policy ip

[DeviceC-security-policy-ip] rule name ipseclocalout

[DeviceC-security-policy-ip-1-ipseclocalout] source-zone local

[DeviceC-security-policy-ip-1-ipseclocalout] destination-zone untrust

[DeviceC-security-policy-ip-1-ipseclocalout] source-ip-host 3.3.3.3

[DeviceC-security-policy-ip-1-ipseclocalout] destination-ip-host 1.1.1.1

[DeviceC-security-policy-ip-1-ipseclocalout] action pass

[DeviceC-security-policy-ip-1-ipseclocalout] quit

# 配置名稱為ipseclocalin的安全策略規則，使Device C可以接收和處理來自Device A的IPsec隧道協商報文，具體配置步驟如下。

[DeviceC-security-policy-ip] rule name ipseclocalin

[DeviceC-security-policy-ip-2-ipseclocalin] source-zone untrust

[DeviceC-security-policy-ip-2-ipseclocalin] destination-zone local

[DeviceC-security-policy-ip-2-ipseclocalin] source-ip-host 1.1.1.1

[DeviceC-security-policy-ip-2-ipseclocalin] destination-ip-host 3.3.3.3

[DeviceC-security-policy-ip-2-ipseclocalin] action pass

[DeviceC-security-policy-ip-2-ipseclocalin] quit

2. 配置安全策略放行Host C與Host A之間的流量

# 配置名稱為trust-untrust的安全策略規則，使Host C訪問Host A的報文可通，具體配置步驟如下。

[DeviceC-security-policy-ip] rule name trust-untrust

[DeviceC-security-policy-ip-3-trust-untrust] source-zone trust

[DeviceC-security-policy-ip-3-trust-untrust] destination-zone untrust

[DeviceC-security-policy-ip-3-trust-untrust] source-ip-subnet 6.6.6.0 24

[DeviceC-security-policy-ip-3-trust-untrust] destination-ip-subnet 4.4.4.0 24

[DeviceC-security-policy-ip-3-trust-untrust] action pass

[DeviceC-security-policy-ip-3-trust-untrust] quit

# 配置名稱為untrust-trust的安全策略規則，使Host A訪問Host C的報文可通，具體配置步驟如下。

[DeviceC-security-policy-ip] rule name untrust-trust

[DeviceC-security-policy-ip-4-untrust-trust] source-zone untrust

[DeviceC-security-policy-ip-4-untrust-trust] destination-zone trust

[DeviceC-security-policy-ip-4-untrust-trust] source-ip-subnet 4.4.4.0 24

[DeviceC-security-policy-ip-4-untrust-trust] destination-ip-subnet 6.6.6.0 24

[DeviceC-security-policy-ip-4-untrust-trust] action pass

[DeviceC-security-policy-ip-4-untrust-trust] quit

[DeviceC-security-policy-ip] quit

5. 配置ACL，定義需要保護的數據流

# 配置IPv4高級ACL 3000，定義要保護由子網6.6.6.0/24去往子網4.4.4.0/24的數據流。

[DeviceC] acl advanced 3000

[DeviceC-acl-ipv4-adv-3000] rule permit ip source 6.6.6.0 0.0.0.255 destination 4.4.4.0 0.0.0.255

[DeviceC-acl-ipv4-adv-3000] quit

6. 配置IPsec安全提議，協商封裝報文使用的各種安全協議

# 創建IPsec安全提議，兩端配置的安全提議參數需要完全相同，具體配置步驟如下。

[DeviceC] ipsec transform-set tran1

[DeviceC-ipsec-transform-set-tran1] encapsulation-mode tunnel

[DeviceC-ipsec-transform-set-tran1] protocol esp

[DeviceC-ipsec-transform-set-tran1] esp encryption-algorithm des

[DeviceC-ipsec-transform-set-tran1] esp authentication-algorithm sha1

[DeviceC-ipsec-transform-set-tran1] quit

7. 配置IKE keychain，約定通信雙方使用的密鑰信息

# 創建並配置名為key1的IKE keychain，指定與地址為1.1.1.1的對端使用的預共享密鑰為明文456。

[DeviceC] ike keychain key1

[DeviceC-ike-keychain-key1] pre-shared-key address 1.1.1.1 key simple 456

[DeviceC-ike-keychain-key1] quit

8. 配置IKE profile，約定建立IKE SA所需的安全參數

[DeviceC] ike profile profile1

[DeviceC-ike-profile-profile1] keychain key1

[DeviceC-ike-profile-profile1] match remote identity address 1.1.1.1 255.255.255.0

[DeviceC-ike-profile-profile1] quit

9. 配置ISAKMP方式的安全策略，建立IPsec隧道，保護需要防護的數據流

# 創建並配置名為map1的IPsec安全策略，引用安全提議tran1，引用ACL 3000，並指定IPsec隧道的對端地址為1.1.1.1。

[DeviceC] ipsec policy map1 10 isakmp

[DeviceC-ipsec-policy-isakmp-map1-10] transform-set tran1

[DeviceC-ipsec-policy-isakmp-map1-10] security acl 3000

[DeviceC-ipsec-policy-isakmp-map1-10] local-address 3.3.3.3

[DeviceC-ipsec-policy-isakmp-map1-10] remote-address 1.1.1.1

[DeviceC-ipsec-policy-isakmp-map1-10] ike-profile profile1

[DeviceC-ipsec-policy-isakmp-map1-10] quit

10. 在接口上應用IPsec安全策略，對接口上的流量進行保護

[DeviceC] interface gigabitethernet 1/0/1

[DeviceC-GigabitEthernet1/0/1] ipsec apply policy map1

[DeviceC-GigabitEthernet1/0/1] quit