IOS VPN（路由器）：向現有L2L VPN增加新的L2L隧道或遠端訪問
簡介
本文檔提供了將新的L2L VPN隧道或遠端訪問VPN增加到IOS路由器中已存在的L2L VPN配置所需的步驟。
必要條件
需求
在嘗試此配置之前，請確保已正確配置當前可運行的L2L IPSec VPN隧道。
採用元件
本文中的資訊係根據以下軟體和硬體版本：
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兩台運行軟體版本12.4和12.2的IOS路由器
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一台運行軟體版本8.0的思科自適應安全裝置(ASA)
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。
慣例
網路圖表
此文件使用以下網路設定：
這些輸出是HQ (HUB)路由器和分支機構1 (BO1) ASA的當前運行配置。在此配置中，在HQ和BO1 ASA之間配置了IPSec L2L隧道。
| 當前HQ (HUB)路由器配置 |
|---|
HQ_HUB#show running-config Building configuration... Current configuration : 1680 bytes ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname HQ_HUB ! boot-start-marker boot-end-marker ! ! no aaa new-model ! resource policy ! !--- Output is suppressed. ! ip cef ! ! crypto isakmp policy 10 encr 3des authentication pre-share group 2 crypto isakmp key cisco123 address 192.168.11.2 ! ! crypto ipsec transform-set newset esp-3des esp-md5-hmac ! crypto map map1 5 ipsec-isakmp set peer 192.168.11.2 set transform-set newset match address VPN_BO1 ! ! ! ! interface Ethernet0/0 ip address 10.10.10.1 255.255.255.0 ip nat inside interface Serial2/0 ip address 192.168.10.10 255.255.255.0 ip nat outside ip virtual-reassembly clock rate 64000 crypto map map1 ! interface Serial2/1 no ip address shutdown ! ip http server no ip http secure-server ! ip route 0.0.0.0 0.0.0.0 192.168.10.1 ! ip nat inside source route-map nonat interface Serial2/0 overload ! ip access-list extended NAT_Exempt deny ip 10.10.10.0 0.0.0.255 172.16.1.0 0.0.0.255 permit ip 10.10.10.0 0.0.0.255 any ip access-list extended VPN_BO1 permit ip 10.10.10.0 0.0.0.255 172.16.1.0 0.0.0.255 ! route-map nonat permit 10 match ip address NAT_Exempt ! ! control-plane ! line con 0 line aux 0 line vty 0 4 ! ! end HQ_HUB# |
| BO1 ASA配置 |
|---|
CiscoASA#show running-config : Saved : ASA Version 8.0(2) ! hostname CiscoASA enable password 8Ry2YjIyt7RRXU24 encrypted names ! interface Ethernet0 nameif inside security-level 100 ip address 172.16.1.1 255.255.255.0 ! interface Ethernet1 nameif outside security-level 0 ip address 192.168.11.2 255.255.255.0 ! !--- Output is suppressed. ! passwd 2KFQnbNIdI.2KYOU encrypted ftp mode passive access-list 100 extended permit ip 172.16.1.0 255.255.255.0 10.10.10.0 255.255.255.0 access-list nonat extended permit ip 172.16.1.0 255.255.255.0 10.10.10.0 255.255.255.0 access-list ICMP extended permit icmp any any pager lines 24 mtu outside 1500 mtu inside 1500 no failover icmp unreachable rate-limit 1 burst-size 1 asdm image flash:/asdm-602.bin no asdm history enable arp timeout 14400 global (outside) 1 interface nat (inside) 0 access-list nonat nat (inside) 1 10.10.10.0 255.255.255.0 access-group ICMP in interface outside route outside 0.0.0.0 0.0.0.0 192.168.11.1 1 snmp-server enable traps snmp authentication linkup linkdown coldstart crypto ipsec transform-set newset esp-3des esp-md5-hmac crypto map map1 5 match address 100 crypto map map1 5 set peer 192.168.10.10 crypto map map1 5 set transform-set newset crypto map map1 interface outside crypto isakmp enable outside crypto isakmp policy 1 authentication pre-share encryption 3des hash sha group 2 lifetime 86400 crypto isakmp policy 65535 authentication pre-share encryption 3des hash sha group 2 lifetime 86400 telnet timeout 5 ssh timeout 5 console timeout 0 threat-detection basic-threat threat-detection statistics access-list ! class-map inspection_default match default-inspection-traffic ! ! policy-map type inspect dns preset_dns_map parameters message-length maximum 512 policy-map global_policy class inspection_default inspect dns preset_dns_map inspect ftp inspect h323 h225 inspect h323 ras inspect netbios inspect rsh inspect rtsp inspect skinny inspect esmtp inspect sqlnet inspect sunrpc inspect tftp inspect sip inspect xdmcp ! service-policy global_policy global tunnel-group 192.168.10.10 type ipsec-l2l tunnel-group 192.168.10.10 ipsec-attributes pre-shared-key * prompt hostname context Cryptochecksum:d41d8cd98f00b204e9800998ecf8427e : end CiscoASA# |
背景資訊
目前，在HQ辦公室和BO1辦公室之間已經建立了一個L2L隧道。您的公司最近新開了一個分支機構(BO2)。這個新辦公室需要與總部辦公室內的在地資源連線。此外，還額外要求允許員工有機會在家工作，並安全地遠端訪問內部網路中的資源。在本示例中，配置了新的VPN隧道以及位於HQ辦公室的遠端訪問VPN伺服器。
向配置中增加其他L2L隧道
以下是此組態的網路圖表：
逐步說明
本部分提供了必須在HUB HQ路由器上執行的必需過程。
請完成以下步驟：
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建立加密對應要使用的這個新存取清單，以定義相關流量：
HQ_HUB(config)#ip access-list extended VPN_BO2 HQ_HUB(config-ext-nacl)#permit ip 10.10.10.0 0.0.0.255 10.20.20.0 0.0.0.255 HQ_HUB(config-ext-nacl)#exit
警告：若要進行通訊，通道的另一端必須具有與特定網路的此存取控制清單(ACL)專案相反的專案。 -
將這些條目增加到no nat語句中，以免除這些網路之間的nating：
HQ_HUB(config)#ip access-list extended NAT_Exempt HQ_HUB(config-ext-nacl)#deny ip 10.10.10.0 0.0.0.255 10.20.20.0 0.0.0.255 HQ_HUB(config-ext-nacl)#permit ip 10.10.10.0 0.0.0.255 any
將以下ACL增加到現有路由對映nonat中：
HQ_HUB(config)#route-map nonat permit 10 HQ_HUB(config-route-map)#match ip address NAT_Exempt HQ_HUB(config)#ip nat inside source route-map nonat interface Serial2/0 overload
警告：為了進行通訊，隧道的另一端必須具有與特定網路的此ACL條目相反的條目。 -
如圖所示，指定第1階段配置中的對等體地址：
HQ_HUB(config)#crypto isakmp key cisco123 address 192.168.12.2
注意：預共用金鑰在隧道兩端必須完全匹配。
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為新VPN隧道建立加密對映配置。使用在第一個VPN配置中使用的轉換集，因為所有階段2設定都相同。
HQ_HUB(config)#crypto map map1 10 ipsec-isakmp HQ_HUB(config-crypto-map)#set peer 192.168.12.2 HQ_HUB(config-crypto-map)#set transform-set newset HQ_HUB(config-crypto-map)#match address VPN_BO2
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現在您已設定新通道，必須透過通道傳送相關流量才能將其啟用。要執行此操作，請發出擴展的ping命令對遠端隧道內部網路上的一台主機執行ping操作。
在本例中，對位於隧道另一端、地址為10.20.20.16的工作站執行ping操作。這將啟動HQ和BO2之間的隧道。現在，有兩條隧道連線到總部辦公室。如果您無法訪問隧道後方的系統，請參閱最常用的L2L和遠端訪問IPSec VPN故障排除解決方案以查詢關於使用management-access的備用解決方案。
配置示例
| HUB_HQ -增加了新的L2L VPN隧道配置 |
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HQ_HUB#show running-config Building configuration... Current configuration : 2230 bytes ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname HQ_HUB ! boot-start-marker boot-end-marker ! ! no aaa new-model ! resource policy ! ip cef ! crypto isakmp policy 10 authentication pre-share encryption 3des group 2 crypto isakmp key cisco123 address 192.168.11.2 crypto isakmp key cisco123 address 192.168.12.2 ! ! crypto ipsec transform-set newset esp-3des esp-md5-hmac ! crypto map map1 5 ipsec-isakmp set peer 192.168.11.2 set transform-set newset match address VPN_BO1 crypto map map1 10 ipsec-isakmp set peer 192.168.12.2 set transform-set newset match address VPN_BO2 ! ! interface Ethernet0/0 ip address 10.10.10.1 255.255.255.0 ip nat inside ip virtual-reassembly ! interface Serial2/0 ip address 192.168.10.10 255.255.255.0 ip nat outside ip virtual-reassembly clock rate 64000 crypto map map1 ! ! ip http server no ip http secure-server ! ip route 0.0.0.0 0.0.0.0 192.168.10.1 ! ip nat inside source route-map nonat interface Serial2/0 overload ! ip access-list extended NAT_Exempt deny ip 10.10.10.0 0.0.0.255 172.16.1.0 0.0.0.255 deny ip 10.10.10.0 0.0.0.255 10.20.20.0 0.0.0.255 permit ip 10.10.10.0 0.0.0.255 any ip access-list extended VPN_BO1 permit ip 10.10.10.0 0.0.0.255 172.16.1.0 0.0.0.255 ip access-list extended VPN_BO2 permit ip 10.10.10.0 0.0.0.255 10.20.20.0 0.0.0.255 ! route-map nonat permit 10 match ip address NAT_Exempt ! ! control-plane ! ! ! line con 0 line aux 0 line vty 0 4 ! ! end HQ_HUB# |
| BO2 L2L VPN隧道配置 |
|---|
BO2#show running-config Building configuration... 3w3d: %SYS-5-CONFIG_I: Configured from console by console Current configuration : 1212 bytes ! version 12.1 no service single-slot-reload-enable service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname BO2 ! ! ! ! ! ! ip subnet-zero ! ! ! crypto isakmp policy 10 authentication pre-share encryption 3des group 2 crypto isakmp key cisco123 address 192.168.10.10 ! ! crypto ipsec transform-set newset esp-3des esp-md5-hmac ! crypto map map1 5 ipsec-isakmp set peer 192.168.10.10 set transform-set newset match address 100 ! ! ! ! interface Ethernet0 ip address 10.20.20.10 255.255.255.0 ip nat inside ! ! interface Ethernet1 ip address 192.168.12.2 255.255.255.0 ip nat outside crypto map map1 ! interface Serial0 no ip address no fair-queue ! interface Serial1 no ip address shutdown ! ip nat inside source route-map nonat interface Ethernet1 overload ip classless ip route 0.0.0.0 0.0.0.0 192.168.12.1 ip http server ! access-list 100 permit ip 10.20.20.0 0.0.0.255 10.10.10.0 0.0.0.255 access-list 150 deny ip 10.20.20.0 0.0.0.255 10.10.10.0 0.0.0.255 access-list 150 permit ip 10.20.20.0 0.0.0.255 any route-map nonat permit 10 match ip address 150 ! ! ! line con 0 line aux 0 line vty 0 4 login ! end BO2# |
將遠端訪問VPN增加到配置
以下是此組態的網路圖表：
在本示例中，使用了名為分割隧道的功能。此功能允許遠端訪問IPSec客戶端有條件地以加密形式透過IPSec隧道將資料包定向到網路介面，或以明文形式定向到網路介面。啟用分割隧道後，未繫結到IPSec隧道另一側目的地的資料包不必經過加密、透過隧道傳送、解密，然後路由到最終目的地。此概念將分割隧道策略應用於指定的網路。預設設定為透過隧道傳輸所有流量。要設定分割隧道策略，請指定可以提及用於網際網路的流量的ACL。
逐步說明
本節提供新增遠端存取功能以及允許遠端使用者存取所有網站的必要程式。
請完成以下步驟：
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建立用於透過VPN隧道連線的客戶端的IP地址池。此外，建立基本使用者，以便在配置完成後訪問VPN。
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HQ_HUB(config)#ip local pool ippool 10.10.120.10 10.10.120.50
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HQ_HUB(config)#username vpnuser password 0 vpnuser123
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免除特定流量的NAT。
HQ_HUB(config)#ip access-list extended NAT_Exempt HQ_HUB(config-ext-nacl)#deny ip 10.10.10.0 0.0.0.255 10.10.120.0 0.0.0.255 HQ_HUB(config-ext-nacl)#deny ip 10.10.120.0 0.0.0.255 10.20.20.0 0.0.0.255 HQ_HUB(config-ext-nacl)#deny ip 10.10.120.0 0.0.0.255 172.16.1.0 0.0.0.255 HQ_HUB(config-ext-nacl)#permit ip host 10.10.10.0 any HQ_HUB(config-ext-nacl)#exit
將以下ACL增加到現有路由對映nonat中：
HQ_HUB(config)#route-map nonat permit 10 HQ_HUB(config-route-map)#match ip address NAT_Exempt HQ_HUB(config)#ip nat inside source route-map nonat interface Serial2/0 overload
請注意，本示例中免去了VPN隧道之間的nat通訊。
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允許現有L2L隧道和遠端訪問VPN使用者之間的通訊。
HQ_HUB(config)#ip access-list extended VPN_BO1 HQ_HUB(config-ext-nacl)#permit ip 10.10.120.0 0.0.0.255 172.16.1.0 0.0.0.255 HQ_HUB(config-ext-nacl)#exit HQ_HUB(config)#ip access-list extended VPN_BO2 HQ_HUB(config-ext-nacl)#permit ip 10.10.120.0 0.0.0.255 10.20.20.0 0.0.0.255 HQ_HUB(config-ext-nacl)#exit
這樣，遠端訪問使用者就能夠與指定隧道後的網路通訊。
警告：為了進行通訊，隧道的另一端必須具有與特定網路的此ACL條目相反的條目。 -
配置分割隧道
要為VPN連線啟用分割隧道，請確保在路由器上配置了ACL。在本示例中，access-list split_tunnel 命令與用於分割隧道的組關聯，並且該隧道通向10.10.10.0 /24、10.20.20.0/24和172.16.1.0/24網路。未在ACL分割通道中的裝置（例如網際網路）未加密的流量流。
HQ_HUB(config)#ip access-list extended split_tunnel HQ_HUB(config-ext-nacl)#permit ip 10.10.10.0 0.0.0.255 10.10.120.0 0.0.0.255 HQ_HUB(config-ext-nacl)#permit ip 10.20.20.0 0.0.0.255 10.10.120.0 0.0.0.255 HQ_HUB(config-ext-nacl)#permit ip 172.16.1.0 0.0.0.255 10.10.120.0 0.0.0.255 HQ_HUB(config-ext-nacl)#exit
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為VPN客戶端配置本地身份驗證、授權和客戶端配置資訊，例如wins、dns、相關流量acl和ip池。
HQ_HUB(config)#aaa new-model HQ_HUB(config)#aaa authentication login userauthen local HQ_HUB(config)#aaa authorization network groupauthor local HQ_HUB(config)#crypto isakmp client configuration group vpngroup HQ_HUB(config-isakmp-group)#key cisco123 HQ_HUB(config-isakmp-group)#dns 10.10.10.10 HQ_HUB(config-isakmp-group)#wins 10.10.10.20 HQ_HUB(config-isakmp-group)#domain cisco.com HQ_HUB(config-isakmp-group)#pool ippool HQ_HUB(config-isakmp-group)#acl split_tunnel HQ_HUB(config-isakmp-group)#exit
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配置建立VPN隧道所需的動態對映和加密對映資訊。
HQ_HUB(config)#crypto isakmp profile vpnclient HQ_HUB(config-isakmp-group)#match identity group vpngroup HQ_HUB(config-isakmp-group)#client authentication list userauthen HQ_HUB(config-isakmp-group)#isakmp authorization list groupauthor HQ_HUB(config-isakmp-group)#client configuration address respond HQ_HUB(config-isakmp-group)#exit HQ_HUB(config)#crypto dynamic-map dynmap 10 HQ_HUB(config-crypto-map)#set transform-set newset HQ_HUB(config-crypto-map)#set isakmp-profile vpnclient HQ_HUB(config-crypto-map)#reverse-route HQ_HUB(config-crypto-map)#exit HQ_HUB(config)#crypto map map1 65535 ipsec-isakmp dynamic dynmap HQ_HUB(config)#interface serial 2/0 HQ_HUB(config-if)#crypto map map1
配置示例
| 示例配置2 |
|---|
HQ_HUB#show running-config Building configuration... Current configuration : 3524 bytes ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname HQ_HUB ! boot-start-marker boot-end-marker ! ! aaa new-model ! ! aaa authentication login userauthen local aaa authorization network groupauthor local ! aaa session-id common ! resource policy ! ! ! ip cef ! ! !--- Output is suppressed ! username vpnuser password 0 vpnuser123 ! ! ! crypto isakmp policy 10 authentication pre-share encryption 3des group 2 crypto isakmp key cisco123 address 192.168.11.2 crypto isakmp key cisco123 address 192.168.12.2 ! crypto isakmp client configuration group vpngroup key cisco123 dns 10.10.10.10 wins 10.10.10.20 domain cisco.com pool ippool acl split_tunnel crypto isakmp profile vpnclient match identity group vpngroup client authentication list userauthen isakmp authorization list groupauthor client configuration address respond ! ! crypto ipsec transform-set newset esp-3des esp-md5-hmac crypto ipsec transform-set remote-set esp-3des esp-md5-hmac ! crypto dynamic-map dynmap 10 set transform-set remote-set set isakmp-profile vpnclient reverse-route ! ! crypto map map1 5 ipsec-isakmp set peer 192.168.11.2 set transform-set newset match address VPN_BO1 crypto map map1 10 ipsec-isakmp set peer 192.168.12.2 set transform-set newset match address VPN_BO2 crypto map map1 65535 ipsec-isakmp dynamic dynmap ! ! interface Ethernet0/0 ip address 10.10.10.1 255.255.255.0 ip nat inside ip virtual-reassembly ! interface Serial2/0 ip address 192.168.10.10 255.255.255.0 ip nat outside ip virtual-reassembly clock rate 64000 crypto map map1 ! ! ip local pool ippool 10.10.120.10 10.10.120.50 ip http server no ip http secure-server ! ip route 0.0.0.0 0.0.0.0 192.168.10.1 ! ip nat inside source route-map nonat interface Serial2/0 overload ! ip access-list extended NAT_Exempt deny ip 10.10.10.0 0.0.0.255 172.16.1.0 0.0.0.255 deny ip 10.10.10.0 0.0.0.255 10.20.20.0 0.0.0.255 deny ip 10.10.10.0 0.0.0.255 10.10.120.0 0.0.0.255 deny ip 10.10.120.0 0.0.0.255 10.20.20.0 0.0.0.255 deny ip 10.10.120.0 0.0.0.255 172.16.1.0 0.0.0.255 permit ip host 10.10.10.0 any ip access-list extended VPN_BO1 permit ip 10.10.10.0 0.0.0.255 172.16.1.0 0.0.0.255 permit ip 10.10.120.0 0.0.0.255 172.16.1.0 0.0.0.255 ip access-list extended VPN_BO2 permit ip 10.10.10.0 0.0.0.255 10.20.20.0 0.0.0.255 permit ip 10.10.120.0 0.0.0.255 10.20.20.0 0.0.0.255 ip access-list extended split_tunnel permit ip 10.10.10.0 0.0.0.255 10.10.120.0 0.0.0.255 permit ip 10.20.20.0 0.0.0.255 10.10.120.0 0.0.0.255 permit ip 172.16.1.0 0.0.0.255 10.10.120.0 0.0.0.255 ! route-map nonat permit 10 match ip address NAT_Exempt ! ! control-plane ! line con 0 line aux 0 line vty 0 4 ! ! end HQ_HUB# |
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(僅供註冊客戶使用) (OIT)支援某些show指令。使用OIT檢視對show命令輸出的分析。
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ping— 此命令可啟動L2L VPN隧道，如下所示。
擴展Ping HQ_HUB#ping !--- In order to make the L2L VPN tunnel with BO1 !--- to be established. Protocol [ip]: Target IP address: 172.16.1.2 Repeat count [5]: Datagram size [100]: Timeout in seconds [2]: Extended commands [n]: y Source address or interface: 10.10.10.1 Type of service [0]: Set DF bit in IP header? [no]: Validate reply data? [no]: Data pattern [0xABCD]: Loose, Strict, Record, Timestamp, Verbose[none]: Sweep range of sizes [n]: Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 172.16.1.2, timeout is 2 seconds: Packet sent with a source address of 10.10.10.1 .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 132/160/172 ms HQ_HUB#ping !--- In order to make the L2L VPN tunnel with BO2 !--- to be established. Protocol [ip]: Target IP address: 10.20.20.10 Repeat count [5]: Datagram size [100]: Timeout in seconds [2]: Extended commands [n]: y Source address or interface: 10.10.10.1 Type of service [0]: Set DF bit in IP header? [no]: Validate reply data? [no]: Data pattern [0xABCD]: Loose, Strict, Record, Timestamp, Verbose[none]: Sweep range of sizes [n]: Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 10.20.20.10, timeout is 2 seconds: Packet sent with a source address of 10.10.10.1 ....! Success rate is 20 percent (1/5), round-trip min/avg/max = 64/64/64 ms
show crypto isakmp sa HQ_HUB#show crypto isakmp sa dst src state conn-id slot status 192.168.12.2 192.168.10.10 QM_IDLE 2 0 ACTIVE 192.168.11.2 192.168.10.10 QM_IDLE 1 0 ACTIVE
show crypto ipsec sa HQ_HUB#show crypto ipsec sa interface: Serial2/0 Crypto map tag: map1, local addr 192.168.10.10 protected vrf: (none) local ident (addr/mask/prot/port): (10.10.120.0/255.255.255.0/0/0) remote ident (addr/mask/prot/port): (172.16.1.0/255.255.255.0/0/0) current_peer 192.168.11.2 port 500 PERMIT, flags={origin_is_acl,} #pkts encaps: 0, #pkts encrypt: 0, #pkts digest: 0 #pkts decaps: 0, #pkts decrypt: 0, #pkts verify: 0 #pkts compressed: 0, #pkts decompressed: 0 #pkts not compressed: 0, #pkts compr. failed: 0 #pkts not decompressed: 0, #pkts decompress failed: 0 #send errors 0, #recv errors 0 local crypto endpt.: 192.168.10.10, remote crypto endpt.: 192.168.11.22 path mtu 1500, ip mtu 1500, ip mtu idb Serial2/0 current outbound spi: 0x0(0) inbound esp sas: inbound ah sas: inbound pcp sas: outbound esp sas: outbound ah sas: outbound pcp sas: local crypto endpt.: 192.168.10.10, remote crypto endpt.: 192.168.12.2 path mtu 1500, ip mtu 1500, ip mtu idb Serial2/0 current outbound spi: 0x0(0) inbound esp sas: inbound ah sas: inbound pcp sas: outbound esp sas: outbound ah sas: outbound pcp sas: protected vrf: (none) local ident (addr/mask/prot/port): (10.10.10.0/255.255.255.0/0/0) remote ident (addr/mask/prot/port): (10.20.20.0/255.255.255.0/0/0) current_peer 192.168.12.2 port 500 PERMIT, flags={origin_is_acl,} #pkts encaps: 1, #pkts encrypt: 1, #pkts digest: 1 #pkts decaps: 1, #pkts decrypt: 1, #pkts verify: 1 #pkts compressed: 0, #pkts decompressed: 0 #pkts not compressed: 0, #pkts compr. failed: 0 #pkts not decompressed: 0, #pkts decompress failed: 0 #send errors 4, #recv errors 0 local crypto endpt.: 192.168.10.10, remote crypto endpt.: 192.168.12.2 path mtu 1500, ip mtu 1500, ip mtu idb Serial2/0 current outbound spi: 0xF1328(987944) inbound esp sas: spi: 0xAD07C262(2902966882) transform: esp-3des esp-md5-hmac , in use settings ={Tunnel, } conn id: 2004, flow_id: SW:4, crypto map: map1 sa timing: remaining key lifetime (k/sec): (4601612/3292) IV size: 8 bytes replay detection support: Y Status: ACTIVE inbound ah sas: inbound pcp sas: outbound esp sas: spi: 0xF1328(987944) transform: esp-3des esp-md5-hmac , in use settings ={Tunnel, } conn id: 2003, flow_id: SW:3, crypto map: map1 sa timing: remaining key lifetime (k/sec): (4601612/3291) IV size: 8 bytes replay detection support: Y Status: ACTIVE outbound ah sas: outbound pcp sas: protected vrf: (none) local ident (addr/mask/prot/port): (10.10.120.0/255.255.255.0/0/0) remote ident (addr/mask/prot/port): (10.20.20.0/255.255.255.0/0/0) current_peer 192.168.12.2 port 500 PERMIT, flags={origin_is_acl,} #pkts encaps: 0, #pkts encrypt: 0, #pkts digest: 0 #pkts decaps: 0, #pkts decrypt: 0, #pkts verify: 0 #pkts compressed: 0, #pkts decompressed: 0 #pkts not compressed: 0, #pkts compr. failed: 0 #pkts not decompressed: 0, #pkts decompress failed: 0 #send errors 0, #recv errors 0 local crypto endpt.: 192.168.10.10, remote crypto endpt.: 192.168.12.2 path mtu 1500, ip mtu 1500, ip mtu idb Serial2/0 current outbound spi: 0x0(0) inbound esp sas: inbound ah sas: inbound pcp sas: outbound esp sas: outbound ah sas: outbound pcp sas: protected vrf: (none) local ident (addr/mask/prot/port): (10.10.10.0/255.255.255.0/0/0) remote ident (addr/mask/prot/port): (172.16.1.0/255.255.255.0/0/0) current_peer 192.168.11.2 port 500 PERMIT, flags={origin_is_acl,} #pkts encaps: 4, #pkts encrypt: 4, #pkts digest: 4 #pkts decaps: 4, #pkts decrypt: 4, #pkts verify: 4 #pkts compressed: 0, #pkts decompressed: 0 #pkts not compressed: 0, #pkts compr. failed: 0 #pkts not decompressed: 0, #pkts decompress failed: 0 #send errors 11, #recv errors 0 local crypto endpt.: 192.168.10.10, remote crypto endpt.: 192.168.11.2 path mtu 1500, ip mtu 1500, ip mtu idb Serial2/0 current outbound spi: 0x978B3F93(2542485395) inbound esp sas: spi: 0x2884F32(42487602) transform: esp-3des esp-md5-hmac , in use settings ={Tunnel, } conn id: 2002, flow_id: SW:2, crypto map: map1 sa timing: remaining key lifetime (k/sec): (4421529/3261) IV size: 8 bytes replay detection support: Y Status: ACTIVE inbound ah sas: inbound pcp sas: outbound esp sas: spi: 0x978B3F93(2542485395) transform: esp-3des esp-md5-hmac , in use settings ={Tunnel, } conn id: 2001, flow_id: SW:1, crypto map: map1 sa timing: remaining key lifetime (k/sec): (4421529/3261) IV size: 8 bytes replay detection support: Y Status: ACTIVE outbound ah sas: outbound pcp sas: local crypto endpt.: 192.168.10.10, remote crypto endpt.: 192.168.12.2 path mtu 1500, ip mtu 1500, ip mtu idb Serial2/0 current outbound spi: 0x0(0) inbound esp sas: inbound ah sas: inbound pcp sas: outbound esp sas: outbound ah sas: outbound pcp sas: protected vrf: (none) local ident (addr/mask/prot/port): (172.16.1.0/255.255.255.0/0/0) remote ident (addr/mask/prot/port): (10.20.20.0/255.255.255.0/0/0) current_peer 192.168.12.2 port 500 PERMIT, flags={origin_is_acl,} #pkts encaps: 0, #pkts encrypt: 0, #pkts digest: 0 #pkts decaps: 0, #pkts decrypt: 0, #pkts verify: 0 #pkts compressed: 0, #pkts decompressed: 0 #pkts not compressed: 0, #pkts compr. failed: 0 #pkts not decompressed: 0, #pkts decompress failed: 0 #send errors 0, #recv errors 0 local crypto endpt.: 192.168.10.10, remote crypto endpt.: 192.168.12.2 path mtu 1500, ip mtu 1500, ip mtu idb Serial2/0 current outbound spi: 0x0(0) inbound esp sas: inbound ah sas: inbound pcp sas: outbound esp sas: outbound ah sas: outbound pcp sas: protected vrf: (none) local ident (addr/mask/prot/port): (10.20.20.0/255.255.255.0/0/0) remote ident (addr/mask/prot/port): (172.16.1.0/255.255.255.0/0/0) current_peer 192.168.11.2 port 500 PERMIT, flags={origin_is_acl,} #pkts encaps: 0, #pkts encrypt: 0, #pkts digest: 0 #pkts decaps: 0, #pkts decrypt: 0, #pkts verify: 0 #pkts compressed: 0, #pkts decompressed: 0 #pkts not compressed: 0, #pkts compr. failed: 0 #pkts not decompressed: 0, #pkts decompress failed: 0 #send errors 0, #recv errors 0 local crypto endpt.: 192.168.10.10, remote crypto endpt.: 192.168.11.2 path mtu 1500, ip mtu 1500, ip mtu idb Serial2/0 current outbound spi: 0x0(0) inbound esp sas: inbound ah sas: inbound pcp sas: outbound esp sas: outbound ah sas: outbound pcp sas: local crypto endpt.: 192.168.10.10, remote crypto endpt.: 192.168.12.2 path mtu 1500, ip mtu 1500, ip mtu idb Serial2/0 current outbound spi: 0x0(0) inbound esp sas: inbound ah sas: inbound pcp sas: outbound esp sas: outbound ah sas: outbound pcp sas: HQ_HUB#
疑難排解
有關可用於對配置進行故障排除的資訊，請參閱以下文檔：
提示：當清除安全關聯且這無法解決IPSec VPN問題時，請刪除並重新應用相關加密對映，以解決各種問題。
警告：如果從介面刪除加密對映，則會關閉與該加密對映關聯的所有IPSec隧道。請謹慎遵循這些步驟，並在繼續之前考慮組織的變更控制策略。
範例
HQ_HUB(config)#interface s2/0 HQ_HUB(config-if)#no crypto map map1 *Sep 13 13:36:19.449: %CRYPTO-6-ISAKMP_ON_OFF: ISAKMP is OFF HQ_HUB(config-if)#crypto map map1 *Sep 13 13:36:25.557: %CRYPTO-6-ISAKMP_ON_OFF: ISAKMP is ON
相關資訊
修訂記錄
| 修訂 | 發佈日期 | 意見 |
|---|---|---|
1.0 |
14-Jul-2008 |
初始版本 |
意見