PIX-to-PIX 6.x: Easy VPN (NEM) Configuration Example
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Contents
Introduction
This document provides a sample configuration for IPsec between the PIX Easy VPN Remote Hardware Client and the PIX Easy VPN Server. The Easy VPN Remote feature for the PIX was introduced in PIX version 6.2 and is also referred to as hardware client/EzVPN client. Cisco Easy VPN Server is supported in PIX Software version 6.0 and later.
Refer to PIX/ASA 7.x Easy VPN with an ASA 5500 as the Server and PIX 506E as the Client (NEM) Configuration Example in order to learn more about the same scenario where the security appliance runs with software version 7.x.
Refer to PIX/ASA 7.x Easy VPN with an ASA 5500 as the Server and Cisco 871 as the Easy VPN Remote Configuration Example for more information on a similar scenario where the Cisco 871 Router acts as the Easy VPN Remote.
Refer to VPN Hardware Client on a PIX 501/506 Series Security Appliance with VPN 3000 Concentrator Configuration Example for more information on a similar scenario where the Cisco VPN 3000 Concentrator acts as the Easy VPN Server.
Refer to PIX 501/506 Easy VPN Remote to an IOS Router in Network Extension Mode with Extended Authentication Configuration Example for more information on a similar scenario where the Cisco IOS® Router acts as the Easy VPN Server.
Prerequisites
Requirements
Ensure that you meet these requirements before you attempt this configuration:
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Ensure that your PIX Easy VPN Remote Hardware Client is a PIX 501 or PIX 506/506E that runs PIX Software version 6.2 or later.
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Ensure that your Easy VPN Server is a PIX Firewall that runs PIX Software version 6.0 or later.
Components Used
The information in this document is based on these software and hardware versions:
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PIX Easy VPN Remote Hardware Client is a PIX 501 that runs PIX Software version 6.3(1).
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Easy VPN Server is a PIX 515 that runs PIX Software version 6.3(1).
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.
Conventions
Refer to the Cisco Technical Tips Conventions for more information on document conventions.
Configure
In this section, you are presented with the information to configure the features described in this document.
Note: Use the Command Lookup Tool (registered customers only) to obtain more information on the commands used in this section.
Network Diagram
This document uses this network setup:
Configurations
This document uses these configurations:
| PIX Easy VPN Server |
|---|
pix515#write terminal Building configuration... : Saved : PIX Version 6.3(1) !--- Specify speed and duplex settings. interface ethernet0 auto interface ethernet1 auto interface ethernet2 auto shutdown interface ethernet3 auto shutdown interface ethernet4 auto shutdown interface ethernet5 auto shutdown nameif ethernet0 outside security0 nameif ethernet1 inside security100 nameif ethernet2 intf2 security4 nameif ethernet3 intf3 security6 nameif ethernet4 intf4 security8 nameif ethernet5 intf5 security10 enable password 8Ry2YjIyt7RRXU24 encrypted passwd 2KFQnbNIdI.2KYOU encrypted hostname pix515 fixup protocol ftp 21 fixup protocol h323 h225 1720 fixup protocol h323 ras 1718-1719 fixup protocol http 80 fixup protocol ils 389 fixup protocol rsh 514 fixup protocol rtsp 554 fixup protocol sip 5060 fixup protocol sip udp 5060 fixup protocol skinny 2000 fixup protocol smtp 25 fixup protocol sqlnet 1521 names !--- Specify split tunnelling access list and "nonat" access list. access-list 101 permit ip 10.2.2.0 255.255.255.0 10.1.1.0 255.255.255.0 pager lines 24 mtu outside 1500 mtu inside 1500 mtu intf2 1500 mtu intf3 1500 mtu intf4 1500 mtu intf5 1500 !--- Define IP address for the PIX's inside and outside interfaces. ip address outside 172.16.2.1 255.255.255.0 ip address inside 10.2.2.1 255.255.255.0 no ip address intf2 no ip address intf3 no ip address intf4 no ip address intf5 ip audit info action alarm ip audit attack action alarm ip local pool ippool 10.3.3.1-10.3.3.254 no failover failover timeout 0:00:00 failover poll 15 no failover ip address outside no failover ip address inside no failover ip address intf2 no failover ip address intf3 no failover ip address intf4 no failover ip address intf5 pdm history enable arp timeout 14400 !--- Configure Network Address Translation (NAT)/ !--- Port Address Translation (PAT) for regular traffic, !--- as well as NAT for IPsec traffic. global (outside) 1 interface nat (inside) 0 access-list 101 nat (inside) 1 0.0.0.0 0.0.0.0 0 0 !--- Define the outside router as the default gateway. !--- Typically this is the IP address of your !--- Internet service provider's (ISP) router. route outside 0.0.0.0 0.0.0.0 172.16.2.2 1 timeout xlate 3:00:00 timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00 timeout h323 0:05:00 mgcp 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 aaa-server LOCAL protocol local no snmp-server location no snmp-server contact snmp-server community public no snmp-server enable traps floodguard enable sysopt connection permit-ipsec !--- Configure IPsec transform set and dynamic crypto map. crypto ipsec transform-set myset esp-aes esp-md5-hmac crypto dynamic-map dynmap 10 set transform-set myset crypto map mymap 10 ipsec-isakmp dynamic dynmap !--- Apply crypto map to the outside interface. crypto map mymap interface outside !--- Configure Phase 1 Internet Security Association !-- and Key Management Protocol (ISAKMP) parameters. isakmp enable outside isakmp identity address isakmp policy 10 authentication pre-share isakmp policy 10 encryption aes isakmp policy 10 hash md5 isakmp policy 10 group 2 isakmp policy 10 lifetime 86400 !--- Configure VPNGroup parameters, to be sent down to the client. vpngroup mygroup address-pool ippool vpngroup mygroup dns-server 10.2.2.2 vpngroup mygroup wins-server 10.2.2.2 vpngroup mygroup default-domain cisco.com vpngroup mygroup split-tunnel 101 vpngroup mygroup idle-time 1800 vpngroup mygroup password ******** vpngroup idle-time idle-time 1800 telnet timeout 5 ssh timeout 5 console timeout 0 terminal width 80 Cryptochecksum:67106d7a5a3aa3da0caaeea93b9fc8d6 : end [OK] pix515# |
| PIX Easy VPN Remote Hardware Client |
|---|
pix501#write terminal Building configuration... : Saved : PIX Version 6.3(1) !--- Specify speed and duplex settings. interface ethernet0 auto interface ethernet1 100full nameif ethernet0 outside security0 nameif ethernet1 inside security100 enable password 8Ry2YjIyt7RRXU24 encrypted passwd 2KFQnbNIdI.2KYOU encrypted hostname pix501 fixup protocol ftp 21 fixup protocol h323 h225 1720 fixup protocol h323 ras 1718-1719 fixup protocol http 80 fixup protocol ils 389 fixup protocol rsh 514 fixup protocol rtsp 554 fixup protocol sip 5060 fixup protocol sip udp 5060 fixup protocol skinny 2000 fixup protocol smtp 25 fixup protocol sqlnet 1521 names pager lines 24 mtu outside 1500 mtu inside 1500 !--- Define IP address for the PIX's inside and outside interfaces. ip address outside 172.16.1.1 255.255.255.0 ip address inside 10.1.1.1 255.255.255.0 ip audit info action alarm ip audit attack action alarm pdm history enable arp timeout 14400 !--- Configure NAT for traffic that is not encrypted. global (outside) 1 interface nat (inside) 1 0.0.0.0 0.0.0.0 0 0 !--- Define the outside router as the default gateway. !--- Typically this is the IP address of your ISP's router. route outside 0.0.0.0 0.0.0.0 172.16.1.2 1 timeout xlate 3:00:00 timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00 timeout h323 0:05:00 mgcp 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 aaa-server LOCAL protocol local no snmp-server location no snmp-server contact snmp-server community public no snmp-server enable traps floodguard enable telnet timeout 5 ssh timeout 5 console timeout 0 !--- Define Easy VPN Remote parameters. vpnclient server 172.16.2.1 vpnclient mode network-extension-mode vpnclient vpngroup mygroup password ******** !--- Enable the VPN Client. !--- (This automatically initiates the IPSec tunnel to the server.) vpnclient enable terminal width 80 Cryptochecksum:b8242b410ad8e3b372018cd1cff77f91 : end [OK] |
Verify
Use this section to confirm that your configuration works properly.
The Output Interpreter Tool (registered customers only) (OIT) supports certain show commands. Use the OIT to view an analysis of show command output.
PIX Easy VPN Server show Commands and Sample Output
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show crypto isakmp sa—Displays all current Internet Key Exchange (IKE) security associations (SA) at a peer.
pix515#show crypto isakmp sa Total : 1 Embryonic : 0 dst src state pending created 172.16.2.1 172.16.1.1 QM_IDLE 0 2 pix515# -
show crypto ipsec sa—Displays IPsec SAs built between peers.
pix515#show crypto ipsec sa !--- This command was issued after a ping !--- was attempted from the PC behind the !--- Easy VPN Client to the PC !--- behind the server. interface: outside Crypto map tag: mymap, local addr. 172.16.2.1 local ident (addr/mask/prot/port): (10.2.2.0/255.255.255.0/0/0) remote ident (addr/mask/prot/port): (10.1.1.0/255.255.255.0/0/0) current_peer: 172.16.1.1:500 dynamic allocated peer ip: 0.0.0.0 PERMIT, flags={} #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 decompress failed: 0 #send errors 0, #recv errors 0 !--- Ping packets !--- were successfully exchanged between the !--- Easy VPN Remote Hardware Client !--- and the Easy VPN Server. local crypto endpt.: 172.16.2.1, remote crypto endpt.: 172.16.1.1 path mtu 1500, ipsec overhead 64, media mtu 1500 current outbound spi: 3a5a28e4 inbound esp sas: spi: 0x505c96c6(1348245190) transform: esp-aes esp-md5-hmac , in use settings ={Tunnel, } slot: 0, conn id: 2, crypto map: mymap sa timing: remaining key lifetime (k/sec): (4607999/28471) IV size: 16 bytes replay detection support: Y inbound ah sas: inbound pcp sas: outbound esp sas: spi: 0x3a5a28e4(978987236) transform: esp-aes esp-md5-hmac , in use settings ={Tunnel, } slot: 0, conn id: 1, crypto map: mymap sa timing: remaining key lifetime (k/sec): (4607999/28471) IV size: 16 bytes replay detection support: Y outbound ah sas: outbound pcp sas: local ident (addr/mask/prot/port): (10.2.2.0/255.255.255.0/0/0) remote ident (addr/mask/prot/port): (172.16.1.1/255.255.255.255/0/0) current_peer: 172.16.1.1:500 dynamic allocated peer ip: 0.0.0.0 PERMIT, flags={} #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 decompress failed: 0 #send errors 0, #recv errors 0 local crypto endpt.: 172.16.2.1, remote crypto endpt.: 172.16.1.1 path mtu 1500, ipsec overhead 64, media mtu 1500 current outbound spi: 27f378f9 inbound esp sas: spi: 0xf2bb4f00(4072361728) transform: esp-aes esp-md5-hmac , in use settings ={Tunnel, } slot: 0, conn id: 3, crypto map: mymap sa timing: remaining key lifetime (k/sec): (4608000/27796) IV size: 16 bytes replay detection support: Y inbound ah sas: inbound pcp sas: outbound esp sas: spi: 0x27f378f9(670267641) transform: esp-aes esp-md5-hmac , in use settings ={Tunnel, } slot: 0, conn id: 4, crypto map: mymap sa timing: remaining key lifetime (k/sec): (4608000/27787) IV size: 16 bytes replay detection support: Y outbound ah sas: outbound pcp sas: pix515#
PIX Easy VPN Remote Hardware Client show Commands and Sample Output
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vpnclient enable—Enables an Easy VPN Remote connection. (In Network Extension Mode (NEM), the tunnel is up even when there is no interesting traffic to be exchanged with the headend Easy VPN Server.)
pix501(config)#vpnclient enable
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show crypto isakmp policy—Displays the parameters for each IKE policy.
pix501#show crypto isakmp policy Default protection suite encryption algorithm: DES - Data Encryption Standard (56 bit keys). hash algorithm: Secure Hash Standard authentication method: Rivest-Shamir-Adleman Signature Diffie-Hellman group: #1 (768 bit) lifetime: 86400 seconds, no volume limitOutput from the show crypto isakmp policy command after the hardware client is enabled is shown here.
pix501(config)#show crypto isakmp policy Protection suite of priority 65001 encryption algorithm: AES - Advanced Encryption Standard (256 bit keys). hash algorithm: Secure Hash Standard authentication method: Pre-Shared Key with XAUTH Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65002 encryption algorithm: AES - Advanced Encryption Standard (256 bit keys). hash algorithm: Message Digest 5 authentication method: Pre-Shared Key with XAUTH Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65003 encryption algorithm: AES - Advanced Encryption Standard (192 bit keys). hash algorithm: Secure Hash Standard authentication method: Pre-Shared Key with XAUTH Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65004 encryption algorithm: AES - Advanced Encryption Standard (192 bit keys). hash algorithm: Message Digest 5 authentication method: Pre-Shared Key with XAUTH Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65005 encryption algorithm: AES - Advanced Encryption Standard (128 bit keys). hash algorithm: Secure Hash Standard authentication method: Pre-Shared Key with XAUTH Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65006 encryption algorithm: AES - Advanced Encryption Standard (128 bit keys). hash algorithm: Message Digest 5 authentication method: Pre-Shared Key with XAUTH Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65007 encryption algorithm: Three key triple DES hash algorithm: Secure Hash Standard authentication method: Pre-Shared Key with XAUTH Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65008 encryption algorithm: Three key triple DES hash algorithm: Message Digest 5 authentication method: Pre-Shared Key with XAUTH Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65009 encryption algorithm: DES - Data Encryption Standard (56 bit keys). hash algorithm: Message Digest 5 authentication method: Pre-Shared Key with XAUTH Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65010 encryption algorithm: AES - Advanced Encryption Standard (256 bit keys). hash algorithm: Secure Hash Standard authentication method: Pre-Shared Key Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65011 encryption algorithm: AES - Advanced Encryption Standard (256 bit keys). hash algorithm: Message Digest 5 authentication method: Pre-Shared Key Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65012 encryption algorithm: AES - Advanced Encryption Standard (192 bit keys). hash algorithm: Secure Hash Standard authentication method: Pre-Shared Key Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65013 encryption algorithm: AES - Advanced Encryption Standard (192 bit keys). hash algorithm: Message Digest 5 authentication method: Pre-Shared Key Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65014 encryption algorithm: AES - Advanced Encryption Standard (128 bit keys). hash algorithm: Secure Hash Standard authentication method: Pre-Shared Key Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65015 encryption algorithm: AES - Advanced Encryption Standard (128 bit keys). hash algorithm: Message Digest 5 authentication method: Pre-Shared Key Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65016 encryption algorithm: Three key triple DES hash algorithm: Secure Hash Standard authentication method: Pre-Shared Key Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65017 encryption algorithm: Three key triple DES hash algorithm: Message Digest 5 authentication method: Pre-Shared Key Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit Protection suite of priority 65018 encryption algorithm: DES - Data Encryption Standard (56 bit keys). hash algorithm: Message Digest 5 authentication method: Pre-Shared Key Diffie-Hellman group: #2 (1024 bit) lifetime: 86400 seconds, no volume limit -
show crypto isakmp sa—Displays all current IKE SAs at a peer.
pix501(config)#show crypto isakmp sa Total : 1 Embryonic : 0 dst src state pending created 172.16.2.1 172.16.1.1 QM_IDLE 0 1 -
show crypto ipsec sa—Displays IPsec SAs built between peers.
pix501(config)#show crypto ipsec sa !--- This command was issued after a ping !--- was attempted from the PC behind the !--- Easy VPN client to the PC !--- behind the server. interface: outside Crypto map tag: _vpnc_cm, local addr. 172.16.1.1 local ident (addr/mask/prot/port): (10.1.1.0/255.255.255.0/0/0) remote ident (addr/mask/prot/port): (10.2.2.0/255.255.255.0/0/0) current_peer: 172.16.2.1:500 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 decompress failed: 0 #send errors 1, #recv errors 0 !--- Ping packets !--- were successfully exchanged between !--- the Easy VPN Remote Hardware Client !--- and the Easy VPN Server. local crypto endpt.: 172.16.1.1, remote crypto endpt.: 172.16.2.1 path mtu 1500, ipsec overhead 64, media mtu 1500 current outbound spi: 505c96c6 inbound esp sas: spi: 0x3a5a28e4(978987236) transform: esp-aes esp-md5-hmac , in use settings ={Tunnel, } slot: 0, conn id: 4, crypto map: _vpnc_cm sa timing: remaining key lifetime (k/sec): (4607999/28745) IV size: 16 bytes replay detection support: Y inbound ah sas: inbound pcp sas: outbound esp sas: spi: 0x505c96c6(1348245190) transform: esp-aes esp-md5-hmac , in use settings ={Tunnel, } slot: 0, conn id: 3, crypto map: _vpnc_cm sa timing: remaining key lifetime (k/sec): (4607999/28745) IV size: 16 bytes replay detection support: Y outbound ah sas: outbound pcp sas: local ident (addr/mask/prot/port): (172.16.1.1/255.255.255.255/0/0) remote ident (addr/mask/prot/port): (10.2.2.0/255.255.255.0/0/0) current_peer: 172.16.2.1:500 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 decompress failed: 0 #send errors 0, #recv errors 0 local crypto endpt.: 172.16.1.1, remote crypto endpt.: 172.16.2.1 path mtu 1500, ipsec overhead 64, media mtu 1500 current outbound spi: f2bb4f00 inbound esp sas: spi: 0x27f378f9(670267641) transform: esp-aes esp-md5-hmac , in use settings ={Tunnel, } slot: 0, conn id: 1, crypto map: _vpnc_cm sa timing: remaining key lifetime (k/sec): (4608000/28125) IV size: 16 bytes replay detection support: Y inbound ah sas: inbound pcp sas: outbound esp sas: spi: 0xf2bb4f00(4072361728) transform: esp-aes esp-md5-hmac , in use settings ={Tunnel, } slot: 0, conn id: 2, crypto map: _vpnc_cm sa timing: remaining key lifetime (k/sec): (4608000/28125) IV size: 16 bytes replay detection support: Y outbound ah sas: outbound pcp sas: pix501(config)# -
show vpnclient—Displays VPN Client or Easy VPN Remote device configuration information.
pix501(config)#show vpnclient LOCAL CONFIGURATION vpnclient server 172.16.2.1 vpnclient mode network-extension-mode vpnclient vpngroup mygroup password ******** vpnclient enable DOWNLOADED DYNAMIC POLICY Current Server : 172.16.2.1 Primary DNS : 10.2.2.2 Primary WINS : 10.2.2.2 Default Domain : cisco.com PFS Enabled : No Secure Unit Authentication Enabled : No User Authentication Enabled : No Split Networks : 10.2.2.0/255.255.255.0 Backup Servers : None pix501(config)#
Troubleshoot
This section provides information you can use to troubleshoot your configuration.
If you have set up the Easy VPN Remote Hardware Client and Easy VPN Server as described in this document and still experience problems, gather the debug output from each PIX and the output from the show commands for analysis by the Cisco Technical Assistance Center (TAC). Also refer to Troubleshooting the PIX to Pass Data Traffic on an Established IPsec Tunnel or IP Security Troubleshooting - Understanding and Using debug Commands. Enable IPsec debugging on the PIX.
PIX debug commands and sample output are shown here.
Note: Refer to Important Information on Debug Commands before you use debug commands.
Easy VPN Server Commands
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debug crypto ipsec—Displays the IPsec negotiations of Phase 2.
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debug crypto isakmp—Displays the ISAKMP negotiations of Phase 1.
This is sample output.
pix515(config)#
!--- As soon as the vpnclient enable command !--- is issued on the remote client PIX, !--- the server receives an IKE negotiation request.
crypto_isakmp_process_block:src:172.16.1.1,
dest:172.16.2.1 spt:500 dpt:500
OAK_AG exchange
ISAKMP (0): processing SA payload. message ID = 0
ISAKMP (0): Checking ISAKMP transform 1 against priority 10 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 256
ISAKMP: hash SHA
ISAKMP: default group 2
ISAKMP: extended auth pre-share (init)
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 2 against priority 10 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 256
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: extended auth pre-share (init)
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 3 against priority 10 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 192
ISAKMP: hash SHA
ISAKMP: default group 2
ISAKMP: extended auth pre-share (init)
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 4 against priority 10 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 192
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: extended auth pre-share (init)
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 5 against priority 10 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 128
ISAKMP: hash SHA
ISAKMP: default group 2
ISAKMP: extended auth pre-share (init)
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 6 against priority 10 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 128
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: extended auth pre-share (init)
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 7 against priority 10 policy
ISAKMP: encryption 3DES-CBC
ISAKMP: hash SHA
ISAKMP: default group 2
ISAKMP: extended auth pre-share (init)
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 8 against priority 10 policy
ISAKMP: encryption 3DES-CBC
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: extended auth pre-share (init)
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 9 against priority 10 policy
ISAKMP: encryption DES-CBC
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: extended auth pre-share (init)
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 10 against priority 10 policy
crypto_isakmp_process_block:src:172.16.1.1,
dest:172.16.2.1 spt:500 dpt:500
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_CONTACTIPSEC(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 172.16.1.1
ISAKMP (0): processing vendor id payload
ISAKMP (0): received xauth v6 vendor id
ISAKMP (0): processing vendor id payload
ISAKMP (0): remote peer supports dead peer detection
ISAKMP (0): processing vendor id payload
ISAKMP (0): speaking to another IOS box!
ISAKMP (0): processing vendor id payload
crypto_isakmp_process_block:src:172.16.1.1,
dest:172.16.2.1 spt:500 dpt:500
ISAKMP_TRANSACTION exchange
crypto_isakmp_process_block:src:172.16.1.1,
dest:172.16.2.1 spt:500 dpt:500
OAK_QM exchange
oakley_process_quick_mode:
OAK_QM_IDLE
ISAKMP (0): processing SA payload. message ID = 4788683
ISAKMP : Checking IPSec proposal 1
ISAKMP: transform 1, ESP_AES
ISAKMP: attributes in transform:
ISAKMP: encaps is 1
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (basic) of 28800
ISAKMP: SA life type in kilobytes
ISAKMP: SA life duration (VPI) of 0x0 0x46 0x50 0x0
ISAKMP: authenticator is HMAC-SHA
ISAKMP: key length is 256IPSEC(validate_proposal):
transform proposal (prot 3, trans 12, hmac_alg 2) not supported
ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP : Checking IPSec proposal 2
ISAKMP: transform 1, ESP_AES
ISAKMP: attributes in transform:
ISAKMP: encaps is 1
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (basic) of 28800
ISAKMP: SA life type in kilobytes
ISAKMP: SA life duration (VPI) of 0x0 0x46 0x50 0x0
ISAKMP: authenticator is HMAC-MD5
ISAKMP: key length is 256IPSEC(validate_proposal):
transform proposal (prot 3, trans 12, hmac_alg 1) not supported
ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP : Checking IPSec proposal 3
ISAKMP: transform 1, ESP_AES
ISAKMP: attributes in transform:
ISAKMP: encaps is 1
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (basic) of 28800
ISAKMP: SA life type in kilobytes
ISAKMP: SA life duration (VPI) of 0x0 0x46 0x50 0x0
ISAKMP: authenticator is HMAC-SHA
ISAKMP: key length is 192IPSEC(validate_proposal):
transform proposal (prot 3, trans 12, hmac_alg 2) not supported
ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP : Checking IPSec proposal 4
ISAKMP: transform 1, ESP_AES
ISAKMP: attributes in transform:
ISAKMP: encaps is 1
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (basic) of 28800
ISAKMP: SA life type in kilobytes
ISAKMP: SA life duration (VPI) of 0x0 0x46 0x50 0x0
ISAKMP: authenticator is HMAC-MD5
ISAKMP: key length is 192IPSEC(validate_proposal):
transform proposal (prot 3, trans 12, hmac_alg 1) not supported
ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP : Checking IPSec proposal 5
ISAKMP: transform 1, ESP_AES
ISAKMP: attributes in transform:
ISAKMP: encaps is 1
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (basic) of 28800
ISAKMP: SA life type in kilobytes
ISAKMP: SA life duration (VPI) of 0x0 0x46 0x50 0x0
ISAKMP: authenticator is HMAC-SHA
ISAKMP: key length is 128IPSEC(validate_proposal):
transform proposal (prot 3, trans 12, hmac_alg 2) not supported
ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP : Checking IPSec proposal 6
ISAKMP: transform 1, ESP_AES
ISAKMP: attributes in transform:
ISAKMP: encaps is 1
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (basic) of 28800
ISAKMP: SA life type in kilobytes
ISAKMP: SA life duration (VPI) of 0x0 0x46 0x50 0x0
ISAKMP: authenticator is HMAC-MD5
ISAKMP: key length is 128
ISAKMP (0): atts are acceptable.IPSEC(validate_proposal_request):
proposal part #1,
(key eng. msg.) dest= 172.16.2.1, src= 172.16.1.1,
dest_proxy= 10.2.2.0/255.255.255.0/0/0 (type=4),
src_proxy= 172.16.1.1/255.255.255.255/0/0 (type=1),
protocol= ESP, transform= esp-aes esp-md5-hmac ,
lifedur= 0s and 0kb,
spi= 0x0(0), conn_id= 0, keysize= 128, flags= 0x4
!--- Both PIXes accept the policy for IPsec.
ISAKMP (0): processing NONCE payload. message ID = 4788683
ISAKMP (0): processing ID payload. message ID = 4788683
ISAKMP (0): ID_IPV4_ADDR src 172.16.1.1 prot 0 port 0
ISAKMP (0): processing ID payload. message ID = 4788683
ISAKMP (0): ID_IPV4_ADDR_SUBNET dst 10.2.2.0/255.255.255.0 prot 0
port 0IPSEC(key_engine): got a queue event...
IPSEC(spi_response): getting spi 0xf5720496(4117890198) for SA
from 172.16.1.1 to 172.16.2.1 for prot 3
return status is IKMP_NO_ERROR
crypto_isakmp_process_block:src:172.16.1.1,
dest:172.16.2.1 spt:500 dpt:500
OAK_QM exchange
oakley_process_quick_mode:
OAK_QM_AUTH_AWAIT
ISAKMP (0): Creating IPSec SAs
inbound SA from 172.16.1.1 to 172.16.2.1
(proxy 172.16.1.1 to 10.2.2.0)
has spi 4117890198 and conn_id 3 and flags 4
lifetime of 28800 seconds
crypto_isakmp_process_block:src:172.16.1.1,
dest:172.16.2.1 spt:500 dpt:500
ISAKMP (0): processing NOTIFY payload 36136 protocol 1
spi 0, message ID = 843197376
ISAMKP (0): received DPD_R_U_THERE from peer 172.16.1.1
ISAKMP (0): sending NOTIFY message 36137 protocol 1
return status is IKMP_NO_ERR_NO_TRANS
crypto_isakmp_process_block:src:172.16.1.1,
dest:172.16.2.1 spt:500 dpt:500
ISAKMP (0): processing NOTIFY payload 36136 protocol 1
spi 0, message ID = 1985282089
ISAMKP (0): received DPD_R_U_THERE from peer 172.16.1.1
ISAKMP (0): sending NOTIFY message 36137 protocol 1
return status is IKMP_NO_ERR_NO_TRANS
crypto_isakmp_process_block:src:172.16.1.1,
dest:172.16.2.1 spt:500 dpt:500
ISAKMP (0): processing NOTIFY payload 36136 protocol 1
spi 0, message ID = 1510977390
ISAMKP (0): received DPD_R_U_THERE from peer 172.16.1.1
ISAKMP (0): sending NOTIFY message 36137 protocol 1
return status is IKMP_NO_ERR_NO_TRANS
Easy VPN Remote Hardware Client Commands
-
debug crypto ipsec—Displays the IPsec negotiations of Phase 2.
-
debug crypto isakmp—Displays the ISAKMP negotiations of Phase 1.
pix501(config)#vpnclient enable
(cIoSnAfKigM)P# (0): ID payload
next-payload : 13
type : 11
protocol : 17
port : 0
length : 11
ISAKMP (0): Total payload length: 15
ISAKMP (0:0): sending NAT-T vendor ID - rev 2 & 3
ISAKMP (0): beginning Aggressive Mode exchange
crypto_isakmp_process_block:src:172.16.2.1,
dest:172.16.1.1 spt:500 dpt:500
OAK_AG exchange
ISAKMP (0): processing SA payload. message ID = 0
ISAKMP (0): Checking ISAKMP transform 1 against priority 65001 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 128
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 0
ISAKMP (0): Checking ISAKMP transform 1 against priority 65002 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 128
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 0
ISAKMP (0): Checking ISAKMP transform 1 against priority 65003 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 128
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 0
ISAKMP (0): Checking ISAKMP transform 1 against priority 65004 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 128
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 0
ISAKMP (0): Checking ISAKMP transform 1 against priority 65005 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 128
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 0
ISAKMP (0): Checking ISAKMP transform 1 against priority 65006 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 128
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 0
ISAKMP (0): Checking ISAKMP transform 1 against priority 65007 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 128
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 0
ISAKMP (0): Checking ISAKMP transform 1 against priority 65008 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 128
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP (0): atts are not acceptable. Next payload is 0
ISAKMP (0): Checking ISAKMP transform 1 against priority 65009 policy
ISAKMP: encryption AES-CBC
ISAKMP: keylength of 128
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x1 0x51 0x80
ISAKMP : attributes being requested
crypto_isakmp_process_block:src:172.16.2.1,
dest:172.16.1.1 spt:500 dpt:500
ISAKMP (0): beginning Quick Mode exchange,
M-ID of 1112046058:424879eaIPSEC(key_engine): got a queue event...
IPSEC(spi_response): getting spi 0x274d3063(659370083) for SA
from 172.16.2.1 to 172.16.1.1 for prot 3
crypto_isakmp_process_block:src:172.16.2.1,
dest:172.16.1.1 spt:500 dpt:500
OAK_QM exchange
oakley_process_quick_mode:
OAK_QM_IDLE
ISAKMP (0): processing SA payload. message ID = 1112046058
ISAKMP : Checking IPSec proposal 1
ISAKMP: transform 1, ESP_AES
ISAKMP: attributes in transform:
ISAKMP: encaps is 1
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (basic) of 28800
ISAKMP: SA life type in kilobytes
ISAKMP: SA life duration (VPI) of 0x0 0x46 0x50 0x0
ISAKMP: authenticator is HMAC-MD5
ISAKMP: key length is 128
ISAKMP (0): atts are acceptable.IPSEC(validate_proposal_request):
proposal part #1,
(key eng. msg.) dest= 172.16.2.1, src= 172.16.1.1,
dest_proxy= 10.2.2.0/255.255.255.0/0/0 (type=4),
src_proxy= 172.16.1.1/255.255.255.255/0/0 (type=1),
protocol= ESP, transform= esp-aes esp-md5-hmac ,
lifedur= 0s and 0kb,
spi= 0x0(0), conn_id= 0, keysize= 128, flags= 0x4
ISAKMP (0): processing NONCE payload. message ID = 1112046058
ISAKMP (0): processing ID payload. message ID = 1112046058
ISAKMP (0): processing ID payload. message ID = 1112046058
ISAKMP (0): Creating IPSec SAs
inbound SA from 172.16.2.1 to 172.16.1.1
(proxy 10.2.2.0 to 172.16.1.1)
has spi 659370083 and conn_id 2 and flags 4
lifetime of 28800 seconds
lifetime of 4608000 kilobytes
outbound SA from 172.16.1.1 to 172.16.2.1
(proxy 172.16.1.1 to 10.2.2.0)
has spi 264316759 and conn_id 1 and flags 4
lifetime of 28800 seconds
lifetime of 4608000 kilobytesIPSEC(key_engine):
got a queue event...
IPSEC(initialize_sas): ,
(key eng. msg.) dest= 172.16.1.1, src= 172.16.2.1,
dest_proxy= 172.16.1.1/255.255.255.255/0/0 (type=1),
src_proxy= 10.2.2.0/255.255.255.0/0/0 (type=4),
protocol= ESP, transform= esp-aes esp-md5-hmac ,
lifedur= 28800s and 4608000kb,
spi= 0x274d3063(659370083), conn_id= 2, keysize= 128, flags= 0x4
IPSEC(initialize_sas): ,
(key eng. msg.) src= 172.16.1.1, dest= 172.16.2.1,
src_proxy= 172.16.1.1/255.255.255.255/0/0 (type=1),
dest_proxy= 10.2.2.0/255.255.255.0/0/0 (type=4),
protocol= ESP, transform= esp-aes esp-md5-hmac ,
lifedur= 28800s and 4608000kb,
spi= 0xfc12757(264316759), conn_id= 1, keysize= 128, flags= 0x4
VPN Peer: IPSEC: Peer ip:172.16.2.1/500 Ref cnt incremented to:2
Total VPN Peers:1
VPN Peer: IPSEC: Peer ip:172.16.2.1/500 Ref cnt incremented to:3
Total VPN Peers:1
return status is IKMP_NO_ERROR
pix501(config)#
pix501(config)#
ISAKMP (0): sending NOTIFY message 36136 protocol 1
crypto_isakmp_process_block:src:172.16.2.1,
dest:172.16.1.1 spt:500 dpt:500
ISAKMP (0): processing NOTIFY payload 36137 protocol 1
spi 0, message ID = 136860646n
ISAMKP (0): received DPD_R_U_THERE_ACK from peer 172.16.2.1
-
debug vpncient—Displays the negotiations specific to the VPN Client.
pix501(config)#vpnclient enable pix501(config)# 505: VPNC CFG: transform set unconfig attempt done 506: VPNC CLI: no isakmp keepalive 10 507: VPNC CLI: no isakmp nat-traversal 20 508: VPNC CFG: IKE unconfig successful 509: VPNC CLI: no crypto map _vpnc_cm 510: VPNC CFG: crypto map deletion attempt done 511: VPNC CFG: crypto unconfig successful 512: VPNC CLI: no global (outside) 65001 513: VPNC CLI: no nat (inside) 0 access-list _vpnc_acl 514: VPNC CFG: nat unconfig attempt failed 515: VPNC CLI: no http 10.1.1.1 255.255.255.0 inside 516: VPNC CLI: no http server enable 517: VPNC CLI: no access-list _vpnc_acl 518: VPNC CFG: ACL deletion attempt failed 519: VPNC CLI: no crypto map _vpnc_cm interface outside 520: VPNC CFG: crypto map de/attach failed 521: VPNC CLI: no sysopt connection permit-ipsec 522: VPNC CLI: sysopt connection permit-ipsec 523: VPNC CFG: transform sets configured 524: VPNC CFG: crypto config successful 525: VPNC CLI: isakmp keepalive 10 526: VPNC CLI: isakmp nat-traversal 20 527: VPNC CFG: IKE config successful 528: VPNC CLI: http 10.1.1.1 255.255.255.0 inside 529: VPNC CLI: http server enable 530: VPNC CLI: no access-list _vpnc_acl 531: VPNC CFG: ACL deletion attempt failed 532: VPNC CLI: access-list _vpnc_acl permit ip host 172.16.1.1 host 172.16.2.1 533: VPNC CLI: crypto map _vpnc_cm 10 match address _vpnc_acl 534: VPNC CFG: crypto map acl update successful 535: VPNC CLI: no crypto map _vpnc_cm interface outside 536: VPNC CLI: crypto map _vpnc_cm interface outside 537: VPNC INF: IKE trigger request done 538: VPNC INF: Constructing policy download req 539: VPNC INF: Packing attributes for policy request 540: VPNC INF: Attributes being requested 541: VPNC ATT: ALT_DEF_DOMAIN: cisco.com 542: VPNC ATT: INTERNAL_IP4_NBNS: 10.2.2.2 543: VPNC ATT: INTERNAL_IP4_DNS: 10.2.2.2 544: VPNC ATT: ALT_SPLIT_INCLUDE 545: VPNC INF: 10.2.2.0/255.255.255.0 546: VPNC ATT: ALT_PFS: 0 547: VPNC ATT: ALT_CFG_SEC_UNIT: 0 548: VPNC ATT: ALT_CFG_USER_AUTH: 0 549: VPNC CLI: no access-list _vpnc_acl 550: VPNC CLI: access-list _vpnc_acl permit ip 10.1.1.0 255.255.255.0 10.2.2.0 255.255.255.0 551: VPNC CLI: access-list _vpnc_acl permit ip host 172.16.1.1 10.2.2.0 255.255.255.0 552: VPNC CFG: _vpnc_acl ST define done 553: VPNC CFG: Split DNS config attempt done 554: VPNC CLI: crypto map _vpnc_cm 10 match address _vpnc_acl 555: VPNC CFG: crypto map acl update successful 556: VPNC CLI: no crypto map _vpnc_cm interface outside 557: VPNC CLI: crypto map _vpnc_cm interface outside 558: VPNC CLI: no global (outside) 65001 559: VPNC CLI: no nat (inside) 0 access-list _vpnc_acl 560: VPNC CFG: nat unconfig attempt failed 561: VPNC CLI: nat (inside) 0 access-list _vpnc_acl 562: VPNC INF: IKE trigger request done
Related Information
Revision History
| Revision | Publish Date | Comments |
|---|---|---|
1.0 |
26-Sep-2008 |
Initial Release |
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