配置IPSec路由器到路由器的NAT過載和Cisco安全VPN客戶端

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已更新: 2007 年 5 月 1 日

文件 ID:14132

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Cisco IOS®軟體版本12.2.7和12.2.8T
Cisco安全VPN客戶端1.1(在IRE客戶端幫助>關於選單中顯示為2.1.12
思科3600路由器

注意：如果將Cisco 2600系列路由器用於此類VPN場景，則路由器必須安裝加密IPsec VPN IOS映像。

本文中的資訊是根據特定實驗室環境內的裝置所建立。文中使用到的所有裝置皆從已清除（預設）的組態來啟動。如果您的網路正在作用，請確保您已瞭解任何指令可能造成的影響。

燈光配置
房屋配置
VPN客戶端配置

燈光配置
Current configuration : 2047 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname Light ! boot system flash:c3660-ik9o3s-mz.122-8T ! ip subnet-zero ! ip audit notify log ip audit po max-events 100 ip ssh time-out 120 ip ssh authentication-retries 3 ! !--- IPsec Internet Security Association and !--- Key Management Protocol (ISAKMP) policy. crypto isakmp policy 5 hash md5 authentication pre-share !--- ISAKMP key for static LAN-to-LAN tunnel !--- without extended authenticaton (xauth). crypto isakmp key cisco123 address 10.64.10.45 no-xauth !--- ISAKMP key for the dynamic VPN Client. crypto isakmp key 123cisco address 0.0.0.0 0.0.0.0 !--- Assign the IP address to the VPN Client. crypto isakmp client configuration address-pool local test-pool ! ! ! crypto ipsec transform-set testset esp-des esp-md5-hmac ! crypto dynamic-map test-dynamic 10 set transform-set testset ! ! !--- VPN Client mode configuration negotiation, !--- such as IP address assignment and xauth. crypto map test client configuration address initiate crypto map test client configuration address respond !--- Static crypto map for the LAN-to-LAN tunnel. crypto map test 5 ipsec-isakmp set peer 10.64.10.45 set transform-set testset !--- Include the private network-to-private network traffic !--- in the encryption process. match address 115 !--- Dynamic crypto map for the VPN Client. crypto map test 10 ipsec-isakmp dynamic test-dynamic ! call rsvp-sync ! ! ! ! ! fax interface-type modem mta receive maximum-recipients 0 ! controller E1 2/0 ! ! ! interface FastEthernet0/0 ip address 10.64.10.44 255.255.255.224 ip nat outside duplex auto speed auto crypto map test ! interface FastEthernet0/1 ip address 192.168.100.1 255.255.255.0 ip nat inside duplex auto speed auto ! interface BRI4/0 no ip address shutdown ! interface BRI4/1 no ip address shutdown ! interface BRI4/2 no ip address shutdown ! interface BRI4/3 no ip address shutdown ! !--- Define the IP address pool for the VPN Client. ip local pool test-pool 192.168.1.1 192.168.1.254 !--- Exclude the private network and VPN Client !--- traffic from the NAT process. ip nat inside source route-map nonat interface FastEthernet0/0 overload ip classless ip route 0.0.0.0 0.0.0.0 10.64.10.33 ip http server ip pim bidir-enable ! !--- Exclude the private network and VPN Client !--- traffic from the NAT process. access-list 110 deny ip 192.168.100.0 0.0.0.255 192.168.200.0 0.0.0.255 access-list 110 deny ip 192.168.100.0 0.0.0.255 192.168.1.0 0.0.0.255 access-list 110 permit ip 192.168.100.0 0.0.0.255 any !--- Include the private network-to-private network traffic !--- in the encryption process. access-list 115 permit ip 192.168.100.0 0.0.0.255 192.168.200.0 0.0.0.255 ! !--- Exclude the private network and VPN Client !--- traffic from the NAT process. route-map nonat permit 10 match ip address 110 ! ! dial-peer cor custom ! ! ! ! ! line con 0 line 97 108 line aux 0 line vty 0 4 ! end

燈光配置

 Current configuration : 2047 bytes
 !
 version 12.2
 service timestamps debug uptime
 service timestamps log uptime
 no service password-encryption
 !
 hostname Light
 !
 boot system flash:c3660-ik9o3s-mz.122-8T
 !
 ip subnet-zero
 !
 ip audit notify log
 ip audit po max-events 100
 ip ssh time-out 120
 ip ssh authentication-retries 3
 !

!--- IPsec Internet Security Association and !--- Key Management Protocol (ISAKMP) policy.

 crypto isakmp policy 5
  hash md5
  authentication pre-share

!--- ISAKMP key for static LAN-to-LAN tunnel !--- without extended authenticaton (xauth).

 crypto isakmp key cisco123 address 10.64.10.45 no-xauth

!--- ISAKMP key for the dynamic VPN Client.

 crypto isakmp key 123cisco address 0.0.0.0 0.0.0.0

!--- Assign the IP address to the VPN Client.

 crypto isakmp client configuration address-pool local test-pool
 !
 !
 ! 
 crypto ipsec transform-set testset esp-des esp-md5-hmac 
 !
 crypto dynamic-map test-dynamic 10
  set transform-set testset 
 !
 !

!--- VPN Client mode configuration negotiation, !--- such as IP address assignment and xauth.

 crypto map test client configuration address initiate
 crypto map test client configuration address respond

!--- Static crypto map for the LAN-to-LAN tunnel.

 crypto map test 5 ipsec-isakmp   
  set peer 10.64.10.45
  set transform-set testset 

!--- Include the private network-to-private network traffic !--- in the encryption process.

  match address 115

!--- Dynamic crypto map for the VPN Client.

 crypto map test 10 ipsec-isakmp dynamic test-dynamic 
 !


 call rsvp-sync
 !
 !
 !         
 !
 !
 fax interface-type modem
 mta receive maximum-recipients 0
 !
 controller E1 2/0
 !
 !
 !
 interface FastEthernet0/0
  ip address 10.64.10.44 255.255.255.224
  ip nat outside
  duplex auto
  speed auto
  crypto map test
 !
 interface FastEthernet0/1
  ip address 192.168.100.1 255.255.255.0
  ip nat inside
  duplex auto
  speed auto
 !
 interface BRI4/0
  no ip address
  shutdown
 !
 interface BRI4/1
  no ip address
  shutdown
 !
 interface BRI4/2
  no ip address
  shutdown
 !
 interface BRI4/3
  no ip address
  shutdown
 !
 
!--- Define the IP address pool for the VPN Client.

 ip local pool test-pool 192.168.1.1 192.168.1.254

!--- Exclude the private network and VPN Client !--- traffic from the NAT process.

 ip nat inside source route-map nonat interface FastEthernet0/0 overload 
 ip classless
 ip route 0.0.0.0 0.0.0.0 10.64.10.33
 ip http server
 ip pim bidir-enable
 !

!--- Exclude the private network and VPN Client !--- traffic from the NAT process.

 access-list 110 deny   ip 192.168.100.0 0.0.0.255 192.168.200.0 0.0.0.255
 access-list 110 deny   ip 192.168.100.0 0.0.0.255 192.168.1.0 0.0.0.255
 access-list 110 permit ip 192.168.100.0 0.0.0.255 any

!--- Include the private network-to-private network traffic !--- in the encryption process.

 access-list 115 permit ip 192.168.100.0 0.0.0.255 192.168.200.0 0.0.0.255
 !

!--- Exclude the private network and VPN Client !--- traffic from the NAT process.

 route-map nonat permit 10
  match ip address 110 
 !
 !
 dial-peer cor custom
 !
 !
 !
 !
 !
 line con 0
 line 97 108
 line aux 0
 line vty 0 4
 !
 end

房屋配置
Current configuration : 1689 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname house ! boot system flash:c3660-jk8o3s-mz.122-7.bin ! ip subnet-zero ! ! no ip domain-lookup ! ip audit notify log ip audit po max-events 100 ip ssh time-out 120 ip ssh authentication-retries 3 ! !--- IPsec ISAKMP policy. crypto isakmp policy 5 hash md5 authentication pre-share !--- ISAKMP key for static LAN-to-LAN tunnel without xauth authenticaton. crypto isakmp key cisco123 address 10.64.10.44 no-xauth ! ! crypto ipsec transform-set testset esp-des esp-md5-hmac ! !--- Static crypto map for the LAN-to-LAN tunnel. crypto map test 5 ipsec-isakmp set peer 10.64.10.44 set transform-set testset !--- Include the private network-to-private network traffic !--- in the encryption process. match address 115 ! call rsvp-sync cns event-service server ! ! ! ! ! fax interface-type modem mta receive maximum-recipients 0 ! ! ! interface FastEthernet0/0 ip address 10.64.10.45 255.255.255.224 ip nat outside duplex auto speed auto crypto map test ! interface FastEthernet0/1 ip address 192.168.200.1 255.255.255.0 ip nat inside duplex auto speed auto ! interface BRI2/0 no ip address shutdown ! interface BRI2/1 no ip address shutdown ! interface BRI2/2 no ip address shutdown ! interface BRI2/3 no ip address shutdown ! interface FastEthernet4/0 no ip address shutdown duplex auto speed auto ! !--- Exclude the private network traffic !--- from the dynamic (dynamic association to a pool) NAT process. ip nat inside source route-map nonat interface FastEthernet0/0 overload ip classless ip route 0.0.0.0 0.0.0.0 10.64.10.33 no ip http server ip pim bidir-enable ! !--- Exclude the private network traffic from the NAT process. access-list 110 deny ip 192.168.200.0 0.0.0.255 192.168.100.0 0.0.0.255 access-list 110 permit ip 192.168.200.0 0.0.0.255 any !--- Include the private network-to-private network traffic !--- in the encryption process. access-list 115 permit ip 192.168.200.0 0.0.0.255 192.168.100.0 0.0.0.255 !--- Exclude the private network traffic from the NAT process. route-map nonat permit 10 match ip address 110 ! ! ! dial-peer cor custom ! ! ! ! ! line con 0 line aux 0 line vty 0 4 login ! end

房屋配置

Current configuration : 1689 bytes
 !
 version 12.2
 service timestamps debug uptime
 service timestamps log uptime
 no service password-encryption
 !
 hostname house
 !
 boot system flash:c3660-jk8o3s-mz.122-7.bin
 !
 ip subnet-zero
 !
 !
 no ip domain-lookup
 !
 ip audit notify log
 ip audit po max-events 100
 ip ssh time-out 120
 ip ssh authentication-retries 3
 !

!--- IPsec ISAKMP policy.

 crypto isakmp policy 5
  hash md5 
  authentication pre-share

!--- ISAKMP key for static LAN-to-LAN tunnel without xauth authenticaton.

 crypto isakmp key cisco123 address 10.64.10.44 no-xauth
 !
 !
 crypto ipsec transform-set testset esp-des esp-md5-hmac 
 !

!--- Static crypto map for the LAN-to-LAN tunnel.

 crypto map test 5 ipsec-isakmp   
  set peer 10.64.10.44
  set transform-set testset 

!--- Include the private network-to-private network traffic !--- in the encryption process.

  match address 115 
 !
 call rsvp-sync
 cns event-service server
 !
 !
 !
 !
 !
 fax interface-type modem
 mta receive maximum-recipients 0
 !
 !
 !         
 interface FastEthernet0/0
  ip address 10.64.10.45 255.255.255.224
  ip nat outside
  duplex auto
  speed auto
  crypto map test
 !
 interface FastEthernet0/1
  ip address 192.168.200.1 255.255.255.0
  ip nat inside
  duplex auto
  speed auto
 !
 interface BRI2/0
  no ip address
  shutdown
 !
 interface BRI2/1
  no ip address
  shutdown
 !
 interface BRI2/2
  no ip address
  shutdown
 !
 interface BRI2/3
  no ip address
  shutdown
 !
 interface FastEthernet4/0
  no ip address
  shutdown
  duplex auto
  speed auto
 !
 
!--- Exclude the private network traffic !--- from the dynamic (dynamic association to a pool) NAT process.

 ip nat inside source route-map nonat interface FastEthernet0/0 overload
 ip classless
 ip route 0.0.0.0 0.0.0.0 10.64.10.33
 no ip http server
 ip pim bidir-enable
 !
 
!--- Exclude the private network traffic from the NAT process.

 access-list 110 deny   ip 192.168.200.0 0.0.0.255 192.168.100.0 0.0.0.255
 access-list 110 permit ip 192.168.200.0 0.0.0.255 any

!--- Include the private network-to-private network traffic !--- in the encryption process.

 access-list 115 permit ip 192.168.200.0 0.0.0.255 192.168.100.0 0.0.0.255
 
!--- Exclude the private network traffic from the NAT process.

 route-map nonat permit 10
  match ip address 110
 !
 !
 !
 dial-peer cor custom
 !
 !
 !
 !
 !
 line con 0
 line aux 0
 line vty 0 4
  login
 !
 end

VPN客戶端配置
Network Security policy: 1- TOLIGHT My Identity Connection security: Secure Remote Party Identity and addressing ID Type: IP subnet 192.168.100.0 255.255.255.0 Port all Protocol all Connect using secure tunnel ID Type: IP address 10.64.10.44 Pre-shared Key=123cisco Authentication (Phase 1) Proposal 1 Authentication method: pre-shared key Encryp Alg: DES Hash Alg: MD5 SA life: Unspecified Key Group: DH 1 Key exchange (Phase 2) Proposal 1 Encapsulation ESP Encrypt Alg: DES Hash Alg: MD5 Encap: tunnel SA life: Unspecified no AH 2- Other Connections Connection security: Non-secure Local Network Interface Name: Any IP Addr: Any Port: All

VPN客戶端配置

Network Security policy:
       1- TOLIGHT
       My Identity
       Connection security: Secure
       Remote Party Identity and addressing
       ID Type: IP subnet
       192.168.100.0
       255.255.255.0
       Port all Protocol all
       
  Connect using secure tunnel
         ID Type: IP address
         10.64.10.44

       
  Pre-shared Key=123cisco

       
  Authentication (Phase 1)
         Proposal 1
         Authentication method: pre-shared key
         Encryp Alg: DES
         Hash Alg: MD5
         SA life: Unspecified
         Key Group: DH 1

       
  Key exchange (Phase 2)
         Proposal 1
         Encapsulation ESP
         Encrypt Alg: DES
         Hash Alg: MD5
         Encap: tunnel
         SA life: Unspecified
         no AH

       
  2- Other Connections
         Connection security: Non-secure
         Local Network Interface
         Name: Any
         IP Addr: Any
         Port: All

驗證

使用本節內容，確認您的組態是否正常運作。

輸出直譯器工具(僅供已註冊客戶使用)(OIT)支援某些show命令。使用OIT檢視show命令輸出的分析。

show crypto ipsec sa — 顯示第2階段安全關聯(SA)。
show crypto isakmp sa — 顯示階段1 SA。

疑難排解

使用本節內容，對組態進行疑難排解。

疑難排解指令

輸出直譯器工具(僅供已註冊客戶使用)(OIT)支援某些show命令。使用OIT檢視show命令輸出的分析。

附註：使用 debug 指令之前，請先參閱有關 Debug 指令的重要資訊。

debug crypto ipsec — 顯示第2階段的IPsec協商。
debug crypto isakmp — 顯示第1階段的ISAKMP協商。
debug crypto engine — 顯示加密的流量。
clear crypto isakmp — 清除與第1階段相關的SA。
clear crypto sa — 清除與第2階段相關的SA。

配置IPSec路由器到路由器的NAT過載和Cisco安全VPN客戶端

下載選項

無偏見用語

關於此翻譯

目錄

簡介

必要條件

需求

採用元件

慣例

設定

網路圖表

組態

驗證

疑難排解

疑難排解指令

相關資訊

修訂記錄

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