8.9 防火墙IPSEC-VPN

1.防火墙区域配置

图片[1]-8.9 防火墙IPSEC-VPN-大赛人网
#FW1配置
firewall zone trust
 add interface GigabitEthernet1/0/1

firewall zone untrust
 set priority 5
 add interface GigabitEthernet1/0/0

#FW2配置
firewall zone trust
add interface GigabitEthernet1/0/1

firewall zone untrust
 add interface GigabitEthernet1/0/0

2.配置内网-外网路由

#FW1
ip route-static 0.0.0.0 0.0.0.0 12.1.1.2
ip route-static 172.16.1.0 24 172.16.14.4

#FW2
ip route-static 0.0.0.0 0.0.0.0 33.1.1.1
ip route-static 172.17.1.0 24 172.17.35.5

#R4
ip route-static 0.0.0.0 0.0.0.0 172.16.14.1

#R5
ip route-static 0.0.0.0 0.0.0.0 172.17.35.3

3.配置安全策略

#FW1
#IKE协商流量策略
security-policy
 rule name ike_l_2_u
  source-zone local
  destination-zone untrust
  source-address 12.1.1.12 32
  destination-address 33.1.1.33 32
  action permit

rule name ike_u_2_l
  source-zone untrust
  destination-zone local
  source-address 33.1.1.33 32
  destination-address 12.1.1.12 32
  action permit

#IPSEC保护流量策略
security-policy
rule name ipsec_t_2_un
  source-zone trust
  destination-zone untrust
  source-address 172.16.0.0 16
  destination-address 172.17.0.0 16
  action permit

 rule name ipsec_un_2_t
  source-zone untrust
  destination-zone trust
  source-address 172.17.0.0 16
  destination-address 172.16.0.0 16
  action permit 

#FW2
#IKE协商流量策略
security-policy
 rule name ike_l_2_u
  source-zone local
  destination-zone untrust
  source-address 33.1.1.33 32
  destination-address 12.1.1.12 32
  action permit

rule name ike_u_2_l
  source-zone untrust
  destination-zone local
  source-address 12.1.1.12 32
  destination-address 33.1.1.33 32
  action permit

#IPSEC保护流量策略
security-policy
rule name ipsec_t_2_un
  source-zone trust
  destination-zone untrust
  source-address 172.17.0.0 16
  destination-address 172.16.0.0 16
  action permit

 rule name ipsec_un_2_t
  source-zone untrust
  destination-zone trust
  source-address 172.16.0.0 16
  destination-address 172.17.0.0 16
  action permit 

4.配置感兴趣流

#FW1
acl number 3001
 rule 10 permit ip source 172.16.0.0 0.0.255.255 destination 172.17.0.0 0.0.255.255

#FW2
acl number 3001
 rule 10 permit ip source 172.17.0.0 0.0.255.255 destination 172.16.0.0 0.0.255.255

5.配置IKE proposal

#FW1
ike proposal 5
 encryption-algorithm aes-256
 dh group14
 authentication-algorithm sha2-256
 authentication-method pre-share
 integrity-algorithm hmac-sha2-256
 prf hmac-sha2-256

#FW2
ike proposal 5
 encryption-algorithm aes-256
 dh group14
 authentication-algorithm sha2-256
 authentication-method pre-share
 integrity-algorithm hmac-sha2-256
 prf hmac-sha2-256

6.配置IKE Peer

#FW1
ike peer fw3
#禁用IKEv2版本 
undo version 2
exchange-mode main 
pre-shared-key Admin@1234
ike-proposal 5
remote-address 33.1.1.33

#FW2
ike peer fw1
#禁用IKEv2版本
undo version 2
exchange-mode main 
pre-shared-key Admin@1234
ike-proposal 5
remote-address 12.1.1.12

7.配置IPSEC proposal

#FW1
ipsec proposal pps01
 transform ah-esp
 ah authentication-algorithm sha2-256
 esp authentication-algorithm sha2-256
 esp encryption-algorithm aes-256

#FW2
ipsec proposal pps01
 transform ah-esp
 ah authentication-algorithm sha2-256
 esp authentication-algorithm sha2-256
 esp encryption-algorithm aes-256

8.配置IPSEC 策略

#FW1
ipsec policy pl01 10 isakmp
 security acl 3001
 ike-peer fw3
 proposal pps01

#FW2
ipsec policy pl01 10 isakmp
 security acl 3001
 ike-peer fw1
 proposal pps01

9.接口调用IPSEC 策略

#FW1
interface GigabitEthernet1/0/0
 ipsec policy pl01

#FW2
interface GigabitEthernet1/0/0
 ipsec policy pl01
图片[2]-8.9 防火墙IPSEC-VPN-大赛人网
#查看ike sa
display ike sa
IKE SA information :
 Conn-ID    Peer                                          VPN              Flag(s)               Phase  RemoteType  RemoteID        
 2          33.1.1.33:500                                                  RD|ST|A               v1:2   IP          33.1.1.33       
 1          33.1.1.33:500                                                  RD|ST|A               v1:1   IP          33.1.1.33       

  Number of IKE SA : 2


#查看ipsec sa
display ipsec sa

ipsec sa information:

===============================
Interface: GigabitEthernet1/0/0
===============================
  -----------------------------
  IPSec policy name: "pl01"
  Sequence number  : 10
  Acl group        : 3001
  Acl rule         : 10
  Mode             : ISAKMP
  -----------------------------
    Connection ID     : 2
    Encapsulation mode: Tunnel
    Holding time      : 0d 0h 6m 54s
    Tunnel local      : 12.1.1.12:500
    Tunnel remote     : 33.1.1.33:500
    Flow source       : 172.16.0.0/255.255.0.0 0/0-65535
    Flow destination  : 172.17.0.0/255.255.0.0 0/0-65535

    [Outbound ESP SAs] 
      SPI: 188122458 (0xb36855a)
      Proposal: ESP-ENCRYPT-AES-256 ESP-AUTH-SHA2-256-128
      SA remaining key duration (kilobytes/sec): 10485760/3186
      Max sent sequence-number: 5         
      UDP encapsulation used for NAT traversal: N
      SA encrypted packets (number/bytes): 4/240
                                          
    [Outbound AH SAs]                     
      SPI: 186085998 (0xb17726e)          
      Proposal: AH-SHA2-256-128           
      SA remaining key duration (kilobytes/sec): 10485760/3186
      Max sent sequence-number: 5         
      UDP encapsulation used for NAT traversal: N
      SA encrypted packets (number/bytes): 4/240
                                          
    [Inbound AH SAs]                      
      SPI: 195410595 (0xba5baa3)          
      Proposal: AH-SHA2-256-128           
      SA remaining key duration (kilobytes/sec): 10485760/3186
      Max received sequence-number: 1     
      UDP encapsulation used for NAT traversal: N
      SA decrypted packets (number/bytes): 3/180
      Anti-replay : Enable                
      Anti-replay window size: 1024       
                                          
    [Inbound ESP SAs]                     
      SPI: 185773610 (0xb12ae2a)          
      Proposal: ESP-ENCRYPT-AES-256 ESP-AUTH-SHA2-256-128
      SA remaining key duration (kilobytes/sec): 10485760/3186
      Max received sequence-number: 1     
      UDP encapsulation used for NAT traversal: N
      SA decrypted packets (number/bytes): 3/180
      Anti-replay : Enable                
      Anti-replay window size: 1024  
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