此示例配置說明了為模式配置(使用者從池獲取IP地址)、萬用字元預共用金鑰(所有PC客戶端共用一個公鑰)和網路地址轉換(NAT)配置的路由器。在此配置中,非現場使用者可進入網路並從池中分配內部IP地址。對使用者而言,他們似乎在網路內部。由於涉及私有編址(因此涉及NAT),因此必須告知路由器要轉換什麼和不轉換什麼。
本文件沒有特定需求。
本文中的資訊係根據以下軟體和硬體版本:
Cisco IOS®軟體版本12.0.7T或更高版本
支援此軟體修訂版本的硬體
CiscoSecure VPN Client 1.0/10A或1.1(分別顯示為2.0.7/E或2.1.12,請轉到Help > About進行檢查)
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。
如需文件慣例的詳細資訊,請參閱思科技術提示慣例。
本節提供用於設定本文件中所述功能的資訊。
注意:要查詢有關本文檔中使用的命令的其他資訊,請使用命令查詢工具(僅限註冊客戶)。
本文檔使用下圖所示的網路設定。
本檔案會使用這些組態。
VPN客戶端配置 |
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Network Security policy: 1- Myconn My Identity = ip address Connection security: Secure Remote Party Identity and addressing ID Type: IP subnet 10.2.2.0 Port all Protocol all Connect using secure tunnel ID Type: IP address 201.70.32.101 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 |
路由器配置 |
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Current configuration: ! version 12.0 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname Router ! enable secret 5 $1$v5OP$mPuiEQn8ULa8hVMYVOV1D. enable password ww ! ip subnet-zero ! cns event-service server ! !--- IKE configuration. crypto isakmp policy 1 hash md5 authentication pre-share crypto isakmp key cisco123 address 0.0.0.0 crypto isakmp client configuration address-pool local ourpool ! !--- IPSec configuration. crypto ipsec transform-set trans1 esp-des esp-md5-hmac ! crypto dynamic-map dynmap 10 set transform-set trans1 ! crypto map intmap client configuration address initiate crypto map intmap client configuration address respond crypto map intmap 10 ipsec-isakmp dynamic dynmap ! interface Ethernet0 ip address 201.70.32.101 255.255.255.0 no ip directed-broadcast ip nat outside no ip route-cache no ip mroute-cache crypto map intmap ! interface Serial1 ip address 10.2.2.1 255.255.255.0 no ip directed-broadcast ip nat inside ! ip local pool ourpool 10.2.1.1 10.2.1.254 ip nat pool outsidepool 201.70.32.150 201.70.32.160 netmask 255.255.255.0 !--- Except the private network to private network traffic !--- from the NAT process. ip nat inside source route-map nonat pool outsidepool ip classless ip route 0.0.0.0 0.0.0.0 201.70.32.1 no ip http server !--- Except the private network to private network traffic !--- from the NAT process. access-list 101 deny ip 10.2.2.0 0.0.0.255 10.2.1.0 0.0.0.255 access-list 101 permit ip 10.2.2.0 0.0.0.255 any route-map nonat permit 10 match ip address 101 ! line con 0 transport input none line aux 0 line vty 0 4 password ww login ! end |
本節提供的資訊可用於確認組態是否正常運作。
輸出直譯器工具支援某些show命令(僅供註冊客戶使用),透過該工具可檢視對show命令輸出的分析。
show crypto engine connections active -顯示加密的資料包和解密的資料包。
show crypto ipsec sa -顯示第2階段安全關聯。
show crypto isakmp sa -顯示第1階段的安全關聯。
本節提供的資訊可用於對組態進行疑難排解。
注意:在發出debug命令之前,請參閱有關Debug命令的重要資訊。
這些調試必須在兩個IPSec路由器(對等體)上運行。必須在兩個對等體上清除安全關聯。
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 -顯示已加密的流量。
clear crypto isakmp -清除與第1階段相關的安全關聯。
clear crypto sa -清除與第2階段相關的安全關聯。
路由器調試 |
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Apr 18 15:17:59: ISAKMP (4): received packet from 201.70.32.82 (R) MM_NO_STATE Apr 18 15:17:59: ISAKMP (4): received packet from 201.70.32.82 (R) MM_NO_STATE Apr 18 15:18:03: ISAKMP (0): received packet from 201.70.32.82 (N) NEW SA Apr 18 15:18:03: ISAKMP (0:5): processing SA payload. message ID = 0 Apr 18 15:18:03: ISAKMP (0:5): Checking ISAKMP transform 1 against priority 1 policy Apr 18 15:18:03: ISAKMP: encryption DES-CBC Apr 18 15:18:03: ISAKMP: hash MD5 Apr 18 15:18:03: ISAKMP: default group 1 Apr 18 15:18:03: ISAKMP: auth pre-share Apr 18 15:18:03: ISAKMP (0:5): atts are acceptable. Next payload is 0 Apr 18 15:18:03: CryptoEngine0: generate alg parameter Apr 18 15:18:05: CRYPTO_ENGINE: Dh phase 1 status: 0 Apr 18 15:18:05: CRYPTO_ENGINE: Dh phase 1 status: 0 Apr 18 15:18:05: ISAKMP (0:5): SA is doing pre-shared key authentication Apr 18 15:18:05: ISAKMP (5): SA is doing pre-shared key authentication using id type ID_IPV4_ADDR Apr 18 15:18:05: ISAKMP (5): sending packet to 201.70.32.82 (R) MM_SA_SETUP Apr 18 15:18:05: ISAKMP (5): received packet from 201.70.32.82 (R) MM_SA_SETUP Apr 18 15:18:05: ISAKMP (0:5): processing KE payload. message ID = 0 Apr 18 15:18:05: CryptoEngine0: generate alg parameter Apr 18 15:18:05: CRYPTO_ENGINE: Dh phase 1 status: 0 Apr 18 15:18:05: CRYPTO_ENGINE: Dh phase 1 status: 0 Apr 18 15:18:05: ISAKMP (0:5): SA is doing pre-shared key authentication Apr 18 15:18:05: ISAKMP (5): SA is doing pre-shared key authentication using id type ID_IPV4_ADDR Apr 18 15:18:05: ISAKMP (5): sending packet to 201.70.32.82 (R) MM_SA_SETUP Apr 18 15:18:05: ISAKMP (5): received packet from 201.70.32.82 (R) MM_SA_SETUP Apr 18 15:18:05: ISAKMP (0:5): processing KE payload. message ID = 0 Apr 18 15:18:05: CryptoEngine0: generate alg parameter Apr 18 15:18:07: ISAKMP (0:5): processing NONCE payload. message ID = 0 Apr 18 15:18:07: CryptoEngine0: create ISAKMP SKEYID for conn id 5 Apr 18 15:18:07: ISAKMP (0:5): SKEYID state generated Apr 18 15:18:07: ISAKMP (0:5): processing vendor id payload Apr 18 15:18:07: ISAKMP (0:5): processing vendor id payload Apr 18 15:18:07: ISAKMP (5): sending packet to 201.70.32.82 (R) MM_KEY_EXCH Apr 18 15:18:07: ISAKMP (0:4): purging SA. Apr 18 15:18:07: ISAKMP (0:4): purging node -1412157317 Apr 18 15:18:07: ISAKMP (0:4): purging node 1875403554 Apr 18 15:18:07: CryptoEngine0: delete connection 4 Apr 18 15:18:08: ISAKMP (5): received packet from 201.70.32.82 (R) MM_KEY_EXCH Apr 18 15:18:08: ISAKMP (0:5): processing ID payload. message ID = 0 Apr 18 15:18:08: ISAKMP (0:5): processing HASH payload. message ID = 0 Apr 18 15:18:08: CryptoEngine0: generate hmac context for conn id 5 Apr 18 15:18:08: ISAKMP (5): processing NOTIFY payload 24578 protocol 1 spi 0, message ID = 0 Apr 18 15:18:08: ISAKMP (0:5): SA has been authenticated with 201.70.32.82 Apr 18 15:18:08: ISAKMP (5): ID payload next-payload : 8 type : 1 protocol : 17 port : 500 length : 8 Apr 18 15:18:08: ISAKMP (5): Total payload length: 12 Apr 18 15:18:08: CryptoEngine0: generate hmac context for conn id 5 Apr 18 15:18:08: CryptoEngine0: clear dh number for conn id 1 Apr 18 15:18:08: ISAKMP (5): sending packet to 201.70.32.82 (R) QM_IDLE Apr 18 15:18:08: ISAKMP (5): received packet from 201.70.32.82 (R) QM_IDLE Apr 18 15:18:08: ISAKMP (0:5): Locking struct 14D0DC on allocation Apr 18 15:18:08: ISAKMP (0:5): allocating address 10.2.1.1 Apr 18 15:18:08: CryptoEngine0: generate hmac context for conn id 5 Apr 18 15:18:08: ISAKMP (0:5): initiating peer config to 201.70.32.82. message ID = 1226793520 Apr 18 15:18:08: ISAKMP (5): sending packet to 201.70.32.82 (R) QM_IDLE Apr 18 15:18:09: ISAKMP (5): received packet from 201.70.32.82 (R) QM_IDLE Apr 18 15:18:09: ISAKMP (0:5): processing transaction payload from 201.70.32.82. message ID = 1226793520 Apr 18 15:18:09: ISAKMP: recieved config from 201.70.32.82 . Apr 18 15:18:09: CryptoEngine0: generate hmac context for conn id 5 Apr 18 15:18:09: ISAKMP: Config payload type: 4 Apr 18 15:18:09: ISAKMP (0:5): peer accepted the address! Apr 18 15:18:09: ISAKMP (0:5): adding static route for 10.2.1.1 Apr 18 15:18:09: ISAKMP (0:5): deleting node 1226793520 Apr 18 15:18:09: CryptoEngine0: generate hmac context for conn id 5 Apr 18 15:18:09: ISAKMP (0:5): processing SA payload. message ID = -617682048 Apr 18 15:18:09: ISAKMP (0:5): Checking IPSec proposal 1 Apr 18 15:18:09: ISAKMP: transform 1, ESP_DES Apr 18 15:18:09: ISAKMP: attributes in transform: Apr 18 15:18:09: ISAKMP: authenticator is HMAC-MD5 Apr 18 15:18:09: ISAKMP: encaps is 1 Apr 18 15:18:09: validate proposal 0 Apr 18 15:18:09: ISAKMP (0:5): atts are acceptable. Apr 18 15:18:09: IPSEC(validate_proposal_request): proposal part #1, (key eng. msg.) dest= 201.70.32.101, src= 201.70.32.82, dest_proxy= 10.2.2.0/255.255.255.0/0/0 (type=4), src_proxy= 10.2.1.1/255.255.255.255/0/0 (type=1), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 0s and 0kb, spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4 Apr 18 15:18:09: validate proposal request 0 Apr 18 15:18:09: ISAKMP (0:5): processing NONCE payload. message ID = -617682048 Apr 18 15:18:09: ISAKMP (0:5): processing ID payload. message ID = -617682048 Apr 18 15:18:09: ISAKMP (5): ID_IPV4_ADDR src 10.2.1.1 prot 0 port 0 Apr 18 15:18:09: ISAKMP (0:5): processing ID payload. message ID = -617682048 Apr 18 15:18:09: ISAKMP (5): ID_IPV4_ADDR_SUBNET dst 10.2.2.0/255.255.255.0 prot 0 port 0 Apr 18 15:18:09: IPSEC(key_engine): got a queue event... Apr 18 15:18:09: IPSEC(spi_response): getting spi 153684796 for SA from 201.70.32.82 to 201.70.32.101 for prot 3 Apr 18 15:18:09: CryptoEngine0: generate hmac context for conn id 5 Apr 18 15:18:09: ISAKMP (5): sending packet to 201.70.32.82 (R) QM_IDLE Apr 18 15:18:09: ISAKMP (5): received packet from 201.70.32.82 (R) QM_IDLE Apr 18 15:18:09: CryptoEngine0: generate hmac context for conn id 5 Apr 18 15:18:09: ISAKMP (0:5): processing SA payload. message ID = -1078114754 Apr 18 15:18:09: ISAKMP (0:5): Checking IPSec proposal 1 Apr 18 15:18:10: ISAKMP: transform 1, ESP_DES Apr 18 15:18:10: ISAKMP: attributes in transform: Apr 18 15:18:10: ISAKMP: authenticator is HMAC-MD5 Apr 18 15:18:10: ISAKMP: encaps is 1 Apr 18 15:18:10: validate proposal 0 Apr 18 15:18:10: ISAKMP (0:5): atts are acceptable. Apr 18 15:18:10: IPSEC(validate_proposal_request): proposal part #1, (key eng. msg.) dest= 201.70.32.101, src= 201.70.32.82, dest_proxy= 10.2.2.0/255.255.255.0/0/0 (type=4), src_proxy= 10.2.1.1/255.255.255.255/0/0 (type=1), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 0s and 0kb, spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4 Apr 18 15:18:10: validate proposal request 0 Apr 18 15:18:10: ISAKMP (0:5): processing NONCE payload. message ID = -1078114754 Apr 18 15:18:10: ISAKMP (0:5): processing ID payload. message ID = -1078114754 Apr 18 15:18:10: ISAKMP (5): ID_IPV4_ADDR src 10.2.1.1 prot 0 port 0 Apr 18 15:18:10: ISAKMP (0:5): processing ID payload. message ID = -1078114754 Apr 18 15:18:10: ISAKMP (5): ID_IPV4_ADDR_SUBNET dst 10.2.2.0/255.255.255.0 prot 0 port 0 Apr 18 15:18:10: IPSEC(key_engine): got a queue event... Apr 18 15:18:10: IPSEC(spi_response): getting spi 224008976 for SA from 201.70.32.82 to 201.70.32.101 for prot 3 Apr 18 15:18:10: CryptoEngine0: generate hmac context for conn id 5 Apr 18 15:18:10: ISAKMP (5): sending packet to 201.70.32.82 (R) QM_IDLE Apr 18 15:18:10: ISAKMP (5): received packet from 201.70.32.82 (R) QM_IDLE Apr 18 15:18:10: CryptoEngine0: generate hmac context for conn id 5 Apr 18 15:18:10: ipsec allocate flow 0 Apr 18 15:18:10: ipsec allocate flow 0 Apr 18 15:18:10: ISAKMP (0:5): Creating IPSec SAs Apr 18 15:18:10: inbound SA from 201.70.32.82 to 201.70.32.101 (proxy 10.2.1.1 to 10.2.2.0) Apr 18 15:18:10: has spi 224008976 and conn_id 2000 and flags 4 Apr 18 15:18:10: outbound SA from 201.70.32.101 to 201.70.32.82 (proxy 10.2.2.0 to 10.2.1.1) Apr 18 15:18:10: has spi -1084694986 and conn_id 2001 and flags 4 Apr 18 15:18:10: ISAKMP (0:5): deleting node -1078114754 Apr 18 15:18:10: IPSEC(key_engine): got a queue event... Apr 18 15:18:10: IPSEC(initialize_sas): , (key eng. msg.) dest= 201.70.32.101, src= 201.70.32.82, dest_proxy= 10.2.2.0/255.255.255.0/0/0 (type=4), src_proxy= 10.2.1.1/0.0.0.0/0/0 (type=1), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 0s and 0kb, spi= 0xD5A1B10(224008976), conn_id= 2000, keysize= 0, flags= 0x4 Apr 18 15:18:10: IPSEC(initialize_sas): , (key eng. msg.) src= 201.70.32.101, dest= 201.70.32.82, src_proxy= 10.2.2.0/255.255.255.0/0/0 (type=4), dest_proxy= 10.2.1.1/0.0.0.0/0/0 (type=1), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 0s and 0kb, spi= 0xBF58DE36(3210272310), conn_id= 2001, keysize= 0, flags= 0x4 Apr 18 15:18:10: IPSEC(create_sa): sa created, (sa) sa_dest= 201.70.32.101, sa_prot= 50, sa_spi= 0xD5A1B10(224008976), sa_trans= esp-des esp-md5-hmac , sa_conn_id= 2000 Apr 18 15:18:10: IPSEC(create_sa): sa created, (sa) sa_dest= 201.70.32.82, sa_prot= 50, sa_spi= 0xBF58DE36(3210272310), sa_trans= esp-des esp-md5-hmac , sa_conn_id= 2001 Apr 18 15:18:10: ISAKMP: Locking struct 14D0DC for IPSEC Apr 18 15:18:24: ISAKMP (0:5): retransmitting phase 2 -617682048 ... Apr 18 15:18:24: ISAKMP (5): sending packet to 201.70.32.82 (R) QM_IDLE Router#show crypto ipsec Apr 18 15:18:39: ISAKMP (0:5): retransmitting phase 2 -617682048 ... Apr 18 15:18:39: ISAKMP (5): sending packet to 201.70.32.82 (R) QM_IDLE sa interface: Ethernet0 Crypto map tag: intmap, local addr. 201.70.32.101 local ident (addr/mask/prot/port): (10.2.2.0/255.255.255.0/0/0) remote ident (addr/mask/prot/port): (10.2.1.1/255.255.255.255/0/0) current_peer: 201.70.32.82 PERMIT, flags={} #pkts encaps: 7, #pkts encrypt: 7, #pkts digest 7 #pkts decaps: 7, #pkts decrypt: 7, #pkts verify 7 #pkts compressed: 0, #pkts decompressed: 0 #pkts not compressed: 0, #pkts compr. failed: 0, #pkts decompress failed: 0 #send errors 0, #recv errors 0 local crypto endpt.: 201.70.32.101, remote crypto endpt.: 201.70.32.82 path mtu 1500, media mtu 1500 current outbound spi: BF58DE36 inbound esp sas: spi: 0xD5A1B10(224008976) transform: esp-des esp-md5-hmac , in use settings ={Tunnel, } slot: 0, conn id: 2000, flow_id: 1, crypto map: intmap sa timing: remaining key lifetime (k/sec): (4607999/3500) IV size: 8 bytes replay detection support: Y inbound ah sas: inbound pcp sas: outbound esp sas: spi: 0xBF58DE36(3210272310) transform: esp-des esp-md5-hmac , in use settings ={Tunnel, } slot: 0, conn id: 2001, flow_id: 2, crypto map: intmap sa timing: remaining key lifetime (k/sec): (4607999/3500) IV size: 8 bytes replay detection support: Y outbound ah sas: outbound pcp sas: Router#sho crypto engine connections active ID Interface IP-Address State Algorithm Encrypt Decrypt 5 set HMAC_MD5+DES_56_CB 0 0 2000 Ethernet0 201.70.32.101 set HMAC_MD5+DES_56_CB 0 7 2001 Ethernet0 201.70.32.101 set HMAC_MD5+DES_56_CB 7 0 Crypto adjacency count : Lock: 0, Unlock: 0 |
VPN客戶端資訊 |
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Client configuration: C:\>ping -t 10.2.2.5 Reply from 10.2.2.5: bytes=32 time<0ms TTL=352 Reply from 10.2.2.5: bytes=32 time<10ms TTL=352 From Logview: 14:25:34.044 New Connection - Initiating IKE Phase 1 (IP ADDR=201.70.32.101) 14:25:34.144 New Connection - SENDING>>>> ISAKMP OAK MM (SA) 14:25:35.886 New Connection - RECEIVED<<< ISAKMP OAK MM (SA) 14:25:36.067 New Connection - SENDING>>>> ISAKMP OAK MM (KE, NON, VID, VID) 14:25:38.310 New Connection - RECEIVED<<< ISAKMP OAK MM (KE, NON, VID) 14:25:38.460 New Connection - SENDING>>>> ISAKMP OAK MM *(ID, HASH, NOTIFY:STATUS_INITIAL_CONTACT) 14:25:38.610 New Connection - RECEIVED<<< ISAKMP OAK MM *(ID, HASH) 14:25:38.710 New Connection - Established IKE SA 14:25:38.811 New Connection - Initiating IKE Phase 2 with Client IDs (message id : B01876) 14:25:38.911 Initiator = IP ADDR=201.70.32.82, prot = 0 port = 0 14:25:39.011 Responder = IP SUBNET/MASK=10.2.2.0/255.255.255.0, prot = 0 port = 0 14:25:39.111 New Connection - SENDING>>>> ISAKMP OAK QM *(HASH, SA, NON, ID, ID) 14:25:39.251 New Connection - RECEIVED<<< ISAKMP OAK TRANS *(HASH, ATTR) 14:25:39.351 New Connection - Received Private IP Address = IP ADDR=10.2.1.1 14:25:39.451 New Connection - Discarding IPSec SA negotiation (message id: B01876) 14:25:39.552 New Connection - SENDING>>>> ISAKMP OAK TRANS *(HASH, ATTR) 14:25:40.022 New Connection - Received message for discarded IPSec SA negotiation (message id: B01876) 14:25:40.122 New Connection - Initiating IKE Phase 2 with Client IDs (message id: C8CB0CE) 14:25:40.223 Initiator = IP ADDR=10.2.1.1, prot = 0 port = 0 14:25:40.323 Responder = IP SUBNET/MASK=10.2.2.0/255.255.255.0, prot = 0 port = 0 14:25:40.423 New Connection - SENDING>>>> ISAKMP OAK QM *(HASH, SA, NON, ID, ID) 14:25:40.873 New Connection - RECEIVED<<< ISAKMP OAK QM *(HASH, SA, NON, ID, ID, NOTIFY:STATUS_RESP_LIFETIME) 14:25:40.974 New Connection - SENDING>>>> ISAKMP OAK QM *(HASH) 14:25:41.074 New Connection - Loading IPSec SA (Message ID = C8CB0CE OUTBOUND SPI = 19A22423 INBOUND SPI = E4829433) 14:25:41.174 |
修訂 | 發佈日期 | 意見 |
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1.0 |
11-Dec-2001 |
初始版本 |