Cisco 安全 PIX 防火墙软件版本 6.0 及更高版本支持 Cisco VPN 客户端 3.x 和 4.x 的连接。本示例配置显示了两个不同版本的 VPN 客户端,这两个 VPN 客户端使用 PIX 作为隧道端点来连接并加密数据流。在此配置中,将配置要分配给 IP 安全 (IPSec) 的地址池。
此示例配置假设 PIX 已经与相应的 static、conduit 或 access-list 语句一起运行。本文无意阐述这些基本概念,而旨在显示从思科VPN客户端到PIX的连通性。
本文档中的信息基于以下软件和硬件版本:
PIX 软件版本 6.2(1)
注意:此设置已在PIX软件版本6.2(1)上测试,但应在6.0(1)以及更高版本的早期版本上运行。
Cisco VPN 客户端 v3.6 Rel
注意:此设置已在VPN客户端v4.0版本上测试,但应在早期版本上运行,恢复到3.0,直到当前版本。
本文档中的信息都是基于特定实验室环境中的设备编写的。本文档中使用的所有设备最初均采用原始(默认)配置。如果您使用的是真实网络,请确保您已经了解所有命令的潜在影响。
有关文档规则的详细信息,请参阅 Cisco 技术提示规则。
本部分提供有关如何配置本文档所述功能的信息。
本文档使用以下网络设置:
注意:使用命令查找工具(仅限注册客户)可查找有关本文档中使用的命令的详细信息。
PIX |
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PIX Version 6.2(1) nameif ethernet0 outside security0 nameif ethernet1 inside security100 enable password OnTrBUG1Tp0edmkr encrypted passwd 2KFQnbNIdI.2KYOU encrypted hostname goss-d3-pix515b domain-name rtp.cisco.com fixup protocol ftp 21 fixup protocol http 80 fixup protocol h323 1720 fixup protocol rsh 514 fixup protocol smtp 25 fixup protocol sqlnet 1521 fixup protocol sip 5060 fixup protocol skinny 2000 names ! !--- Access list to avoid Network Address Translation (NAT) !--- on the IPSec packets. access-list 101 permit ip 10.1.1.0 255.255.255.0 10.1.2.0 255.255.255.0 pager lines 24 interface ethernet0 auto interface ethernet1 auto mtu outside 1500 mtu inside 1500 ! !--- IP addresses on the interfaces ip address outside 172.18.124.216 255.255.255.0 ip address inside 10.1.1.1 255.255.255.0 ip audit info action alarm ip audit attack action alarm ip local pool ippool 10.1.2.1-10.1.2.254 no failover failover timeout 0:00:00 failover poll 15 failover ip address outside 0.0.0.0 failover ip address inside 0.0.0.0 pdm history enable arp timeout 14400 ! !--- Binding ACL 101 to the NAT statement to avoid NAT !--- on the IPSec packets. nat (inside) 0 access-list 101 ! !--- Default route to the Internet. route outside 0.0.0.0 0.0.0.0 172.18.124.1 1 timeout xlate 3:00:00 timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h323 0:05:00 sip 0:30:00 sip_media 0:02:00 timeout uauth 0:05:00 absolute aaa-server TACACS+ protocol tacacs+ aaa-server RADIUS protocol radius http server enable http 1.2.3.5 255.255.255.255 inside no snmp-server location no snmp-server contact snmp-server community public no snmp-server enable traps floodguard enable ! !--- The sysopt command avoids conduit !--- on the IPSec encrypted traffic. sysopt connection permit-ipsec no sysopt route dnat ! !--- Phase 2 encryption type crypto ipsec transform-set myset esp-des esp-md5-hmac crypto dynamic-map dynmap 10 set transform-set myset crypto map mymap 10 ipsec-isakmp dynamic dynmap ! !--- Binding the IPSec engine on the outside interface. crypto map mymap interface outside ! !--- Enabling Internet Security Association and !--- Key Management Protocol (ISAKMP) key exchange. isakmp enable outside isakmp identity address ! !--- ISAKMP policy for VPN Client running 3.x or 4.x code. isakmp policy 10 authentication pre-share isakmp policy 10 encryption des isakmp policy 10 hash md5 isakmp policy 10 group 2 isakmp policy 10 lifetime 86400 ! !--- IPSec group configuration for either VPN Client. vpngroup vpn3000 address-pool ippool vpngroup vpn3000 dns-server 10.1.1.2 vpngroup vpn3000 wins-server 10.1.1.2 vpngroup vpn3000 default-domain cisco.com vpngroup vpn3000 idle-time 1800 vpngroup vpn3000 password ******** !--- To allow simultaneous access to the !--- internal network and to the Internet. vpngroup vpn3000 split-tunnel 101 telnet timeout 5 ssh timeout 5 terminal width 80 Cryptochecksum:94da63fc0bb8ce167407b3ea21c6642c : end [OK] |
完成以下步骤,以便使用 VPN 客户端创建新的连接。
启动 VPN 客户端,然后单击 New 创建新连接。
输入新连接的配置信息。
在 Connection Entry 字段中,为您的条目指定名称。
在 Host 字段中,输入 PIX 的公共接口的 IP 地址。
选择 Authentication 选项卡,然后输入组和口令(输入两次进行确认)。
完成后,单击 Save。
单击 Connect 连接到 PIX。
使用本部分可确认配置能否正常运行。
命令输出解释程序(仅限注册用户)(OIT) 支持某些 show 命令。使用 OIT 可查看对 show 命令输出的分析。
show crypto isakmp sa - 显示对等体上的所有当前 Internet Key Exchange (IKE) 安全连接 (SA)。
show crypto ipsec sa - 查看当前 SA 使用的设置。
使用本部分可排除配置故障。
注意:在使用debug命令之前,请参阅有关Debug命令的重要信息。
debug crypto ipsec - 用于查看第 2 阶段的 IPSec 协商。
debug crypto isakmp - 用于查看第 1 阶段的 ISAKMP 协商。
debug crypto engine - 显示已加密的数据流。
以下是使用 Cisco VPN 3.0.X 客户端生成的正确调试的示例:
goss-d3-pix515b#debug crypto isakmp goss-d3-pix515b#debug crypto ipsec goss-d3-pix515b#debug crypto engine goss-d3-pix515b#show debug debug crypto ipsec 1 debug crypto isakmp 1 debug crypto engine debug fover status tx Off rx Off open Off cable Off txdmp Off rxdmp Off ifc Off rxip Off txip Off get Off put Off verify Off switch Off fail Off fmsg Off goss-d3-pix515b# goss-d3-pix515b# crypto_isakmp_process_block: src 172.18.124.96, dest 172.18.124.216 OAK_AG exchange ISAKMP (0): processing SA payload. message ID = 0 ISAKMP (0): Checking ISAKMP transform 1 against priority 10 policy ISAKMP: encryption 3DES-CBC ISAKMP: hash SHA ISAKMP: default group 2 ISAKMP: extended auth pre-share ISAKMP: life type in seconds ISAKMP: life duration (VPI) of 0x0 0x20 0xc4 0x9b ISAKMP (0): atts are not acceptable. Next payload is 3 ISAKMP (0): Checking ISAKMP transform 2 against priority 10 policy ISAKMP: encryption 3DES-CBC ISAKMP: hash MD5 ISAKMP: default group 2 ISAKMP: extended auth pre-share ISAKMP: life type in seconds ISAKMP: life duration (VPI) of 0x0 0x20 0xc4 0x9b ISAKMP (0): atts are not acceptable. Next payload is 3 ISAKMP (0): Checking ISAKMP transform 3 against priority 10 policy ISAKMP: encryption 3DES-CBC ISAKMP: hash SHA ISAKMP: default group 2 ISAKMP: auth pre-share ISAKMP: life type in seconds ISAKMP: life duration (VPI) of 0x0 0x20 0xc4 0x9b ISAKMP (0): atts are not acceptable. Next payload is 3 ISAKMP (0): Checking ISAKMP transform 4 against priority 10 policy ISAKMP: encryption 3DES-CBC ISAKMP: hash MD5 ISAKMP: default group 2 ISAKMP: auth pre-share ISAKMP: life type in seconds ISAKMP: life duration (VPI) of 0x0 0x20 0xc4 0x9b ISAKMP (0): atts are not acceptable. Next payload is 3 ISAKMP (0): Checking ISAKMP transform 5 against priority 10 policy ISAKMP: encryption DES-CBC ISAKMP: hash SHA ISAKMP: default group 2 ISAKMP: extended auth pre-share ISAKMP: life type in seconds ISAKMP: life duration (VPI) of 0x0 0x20 0xc4 0x9b ISAKMP (0): atts are not acceptable. Next payload is 3 ISAKMP (0): Checking ISAKMP transform 6 against priority 10 policy ISAKMP: encryption DES-CBC ISAKMP: hash MD5 ISAKMP: default group 2 ISAKMP: extended auth pre-share ISAKMP: life type in seconds ISAKMP: life duration (VPI) of 0x0 0x20 0xc4 0x9b ISAKMP (0): atts are not acceptable. Next payload is 3 ISAKMP (0): Checking ISAKMP transform 7 against priority 10 policy ISAKMP: encryption DES-CBC ISAKMP: hash SHA ISAKMP: default group 2 ISAKMP: auth pre-share ISAKMP: life type in seconds ISAKMP: life duration (VPI) of 0x0 0x20 0xc4 0x9b ISAKMP (0): atts are not acceptable. Next payload is 3 ISAKMP (0): Checking ISAKMP transform 8 against priority 10 policy ISAKMP: encryption DES-CBC ISAKMP: hash MD5 ISAKMP: default group 2 ISAKMP: auth pre-share ISAKMP: life type in seconds ISAKMP: life duration (VPI) of 0x0 0x20 0xc4 0x9b ISAKMP (0): atts are acceptable. Next payload is 0 ISAKMP (0): processing KE payload. message ID = 0 ISAKMP (0): processing NONCE payload. message ID = 0 ISAKMP (0): processing ID payload. message ID = 0 ISAKMP (0): processing vendor id payload ISAKMP (0): processing vendor id payload ISAKMP (0): remote peer supports dead peer detection ISAKMP (0): processing vendor id payload ISAKMP (0): speaking to a Unity client ISAKMP: Created a peer node for 172.18.124.96 ISAKMP (0): ID payload next-payload : 10 type : 1 protocol : 17 port : 500 length : 8 ISAKMP (0): Total payload length: 12 return status is IKMP_NO_ERROR crypto_isakmp_process_block: src 172.18.124.96, dest 172.18.124.216 OAK_AG exchange ISAKMP (0): processing HASH payload. message ID = 0 ISAKMP (0): processing NOTIFY payload 24578 protocol 1 spi 0, message ID = 0 ISAKMP (0): processing notify INITIAL_CONTACT IPSEC(key_engine): got a queue event... IPSEC(key_engine_delete_sas): rec'd delete notify from ISAKMP IPSEC(key_engine_delete_sas): delete all SAs shared with 172.18.124.96 ISAKMP (0): SA has been authenticated return status is IKMP_NO_ERROR crypto_isakmp_process_block: src 172.18.124.96, dest 172.18.124.216 ISAKMP_TRANSACTION exchange ISAKMP (0:0): processing transaction payload from 172.18.124.96. message ID = 0 ISAKMP: Config payload CFG_REQUEST ISAKMP (0:0): checking request: ISAKMP: attribute IP4_ADDRESS (1) ISAKMP: attribute IP4_NETMASK (2) ISAKMP: attribute IP4_DNS (3) ISAKMP: attribute IP4_NBNS (4) ISAKMP: attribute ADDRESS_EXPIRY (5) Unsupported Attr: 5 ISAKMP: attribute APPLICATION_VERSION (7) Unsupported Attr: 7 ISAKMP: attribute UNKNOWN (28672) Unsupported Attr: 28672 ISAKMP: attribute UNKNOWN (28673) Unsupported Attr: 28673 ISAKMP: attribute UNKNOWN (28674) ISAKMP: attribute UNKNOWN (28676) ISAKMP: attribute UNKNOWN (28679) Unsupported Attr: 28679 ISAKMP (0:0): responding to peer config from 172.18.124.96. ID = 525416177 return status is IKMP_NO_ERROR crypto_isakmp_process_block: src 172.18.124.96, dest 172.18.124.216 OAK_QM exchange oakley_process_quick_mode: OAK_QM_IDLE ISAKMP (0): processing SA payload. message ID = 805890102 ISAKMP : Checking IPSec proposal 1 ISAKMP: transform 1, ESP_3DES ISAKMP: attributes in transform: ISAKMP: authenticator is HMAC-MD5 ISAKMP: encaps is 1 ISAKMP: SA life type in seconds ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC(validate_proposal): transform proposal (prot 3, trans 3, hmac_alg 1) not supported ISAKMP (0): atts not acceptable. Next payload is 0 ISAKMP (0): skipping next ANDed proposal (1) ISAKMP : Checking IPSec proposal 2 ISAKMP: transform 1, ESP_3DES ISAKMP: attributes in transform: ISAKMP: authenticator is HMAC-SHA ISAKMP: encaps is 1 ISAKMP: SA life type in seconds ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC(validate_proposal): transform proposal (prot 3, trans 3, hmac_alg 2) not supported ISAKMP (0): atts not acceptable. Next payload is 0 ISAKMP (0): skipping next ANDed proposal (2) ISAKMP : Checking IPSec proposal 3 ISAKMP: transform 1, ESP_3DES ISAKMP: attributes in transform: ISAKMP: authenticator is HMAC-MD5 ISAKMP: encaps is 1 ISAKMP: SA life type in seconds ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC(validate_proposal): transform proposal (prot 3, trans 3, hmac_alg 1) not supported ISAKMP (0): atts not acceptable. Next payload is 0 ISAKMP : Checking IPSec proposal 4 ISAKMP: transform 1, ESP_3DES ISAKMP: attributes in transform: ISAKMP: authenticator is HMAC-SHA ISAKMP: encaps is 1 ISAKMP: SA life type in seconds ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC(validate_proposal): transform proposal (prot 3, trans 3, hmac_alg 2) not supported ISAKMP (0): atts not acceptable. Next payload is 0 ISAKMP : Checking IPSec proposal 5 ISAKMP: transform 1, ESP_DES ISAKMP: attributes in transform: ISAKMP: authenticator is HMAC-MD5 ISAKMP: encaps is 1 ISAKMP: SA life type in seconds ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b ISAKMP (0): atts are acceptable. ISAKMP (0): bad SPI size of 2 octets! ISAKMP : Checking IPSec proposal 6 ISAKMP: transform 1, ESP_DES ISAKMP: attributes in transform: ISAKMP: authenticator is HMAC-SHA ISAKMP: encaps is 1 ISAKMP: SA life type in seconds ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC(validate_proposal): transform proposal (prot 3, trans 2, hmac_alg 2) not supported ISAKMP (0): atts not acceptable. Next payload is 0 ISAKMP (0): skipping next ANDed proposal (6) ISAKMP : Checking IPSec proposal 7 ISAKMP: transform 1, ESP_DES ISAKMP: attributes in transform: ISAKMP: authenticator is HMAC-MD5 ISAKMP: encaps is 1 ISAKMP: SA life type in seconds ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b ISAKMP (0): atts are acceptable. IPSEC(validate_proposal_request): proposal part #1, (key eng. msg.) dest= 172.18.124.216, src= 172.18.124.96, dest_proxy= 172.18.124.216/255.255.255.255/0/0 (type=1), src_proxy= 10.1.2.1/255.255.255.255/0/0 (type=1), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 0s and 0kb, spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4 ISAKMP (0): processing NONCE payload. message ID = 805890102 ISAKMP (0): processing ID payload. message ID = 805890102 ISAKMP (0): ID_IPV4_ADDR src 10.1.2.1 prot 0 port 0 ISAKMP (0): processing ID payload. message ID = 805890102 ISAKMP (0): ID_IPV4_ADDR dst 172.18.124.216 prot 0 port 0 IPSEC(key_engine): got a queue event... IPSEC(spi_response): getting spi 0x13b00d31(330304817) for SA from 172.18.124.96 to 172.18.124.216 for prot 3 return status is IKMP_NO_ERROR crypto_isakmp_process_block: src 172.18.124.96, dest 172.18.124.216 OAK_QM exchange oakley_process_quick_mode: OAK_QM_IDLE ISAKMP (0): processing SA payload. message ID = 935083707 ISAKMP : Checking IPSec proposal 1 ISAKMP: transform 1, ESP_3DES ISAKMP: attributes in transform: ISAKMP: authenticator is HMAC-MD5 crypto_isakmp_process_block: src 172.18.124.96, dest 172.18.124.216 OAK_QM exchange oakley_process_quick_mode: OAK_QM_AUTH_AWAITmap_alloc_entry: allocating entry 1 map_alloc_entry: allocating entry 2 ISAKMP (0): Creating IPSec SAs inbound SA from 172.18.124.96 to 172.18.124.216 (proxy 10.1.2.1 to 172.18.124.216) has spi 330304817 and conn_id 1 and flags 4 lifetime of 2147483 seconds outbound SA from 172.18.124.216 to 172.18.124.96 (proxy 172.18.124.216 to 10.1.2.1) has spi 2130279708 and conn_id 2 and flags 4 lifetime of 2147483 secondsIPSEC(key_engine): got a queue event... IPSEC(initialize_sas): , (key eng. msg.) dest= 172.18.124.216, src= 172.18.124.96, dest_proxy= 172.18.124.216/0.0.0.0/0/0 (type=1), src_proxy= 10.1.2.1/0.0.0.0/0/0 (type=1), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 2147483s and 0kb, spi= 0x13b00d31(330304817), conn_id= 1, keysize= 0, flags= 0x4 IPSEC(initialize_sas): , (key eng. msg.) src= 172.18.124.216, dest= 172.18.124.96, src_proxy= 172.18.124.216/0.0.0.0/0/0 (type=1), dest_proxy= 10.1.2.1/0.0.0.0/0/0 (type=1), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 2147483s and 0kb, spi= 0x7ef97d1c(2130279708), conn_id= 2, keysize= 0, flags= 0x4 return status is IKMP_NO_ERROR crypto_isakmp_process_block: src 172.18.124.96, dest 172.18.124.216 OAK_QM exchange oakley_process_quick_mode: OAK_QM_AUTH_AWAITmap_alloc_entry: allocating entry 3 map_alloc_entry: allocating entry 4 ISAKMP (0): Creating IPSec SAs inbound SA from 172.18.124.96 to 172.18.124.216 (proxy 10.1.2.1 to 0.0.0.0) has spi 4139858833 and conn_id 3 and flags 4 lifetime of 2147483 seconds outbound SA from 172.18.124.216 to 172.18.124.96 ( proxy 0.0.0.0 to 10.1.2.1) has spi 1487433401 and conn_id 4 and flags 4 lifetime of 2147483 seconds IPSEC(key_engine): got a queue event... IPSEC(initialize_sas): , (key eng. msg.) dest= 172.18.124.216, src= 172.18.124.96, dest_proxy= 0.0.0.0/0.0.0.0/0/0 (type=4), src_proxy= 10.1.2.1/0.0.0.0/0/0 (type=1), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 2147483s and 0kb, spi= 0xf6IPSEC(initialize_sas): , (key eng. msg.) src= 172.18.124.216, dest= 172.18.124.96, src_proxy= 0.0.0.0/0.0.0.0/0/0 (type=4), dest_proxy= 10.1.2.1/0.0.0.0/0/0 (type=1), protocol= ESP, transform= esp-des esp-md5-hmac , lifedur= 2147483s and 0kb, spi= 0x58a86eb9(1487433401), conn_id= 4, keysize= 0, flags= 0x4 return status is IKMP_NO_ERROR crypto_isakmp_process_block: src 172.18.124.96, dest 172.18.124.216 ISAKMP (0): processing NOTIFY payload 36136 protocol 1 spi 0, message ID = 1617869510 ISAMKP (0): received DPD_R_U_THERE from peer 172.18.124.96 ISAKMP (0): sending NOTIFY message 36137 protocol 1 return status is IKMP_NO_ERR_NO_TRANS goss-d3-pix515b# goss-d3-pix515b# goss-d3-pix515b#no debug crypto isakmp goss-d3-pix515b#no debug crypto ipsec goss-d3-pix515b#no debug crypto engine goss-d3-pix515b#
版本 | 发布日期 | 备注 |
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1.0 |
13-Oct-2008 |
初始版本 |