PIX/ASA 7.x Easy VPN with an ASA 5500 as the Server, PIX 506E as the Client (NEM) 컨피그레이션 예

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업데이트:2007년 3월 12일
문서 ID:67891

편견 없는 언어

본 제품에 대한 문서 세트는 편견 없는 언어를 사용하기 위해 노력합니다. 본 설명서 세트의 목적상, 편견 없는 언어는 나이, 장애, 성별, 인종 정체성, 민족 정체성, 성적 지향성, 사회 경제적 지위 및 교차성에 기초한 차별을 의미하지 않는 언어로 정의됩니다. 제품 소프트웨어의 사용자 인터페이스에서 하드코딩된 언어, RFP 설명서에 기초한 언어 또는 참조된 서드파티 제품에서 사용하는 언어로 인해 설명서에 예외가 있을 수 있습니다. 시스코에서 어떤 방식으로 포용적인 언어를 사용하고 있는지 자세히 알아보세요.

이 번역에 관하여

Cisco는 전 세계 사용자에게 다양한 언어로 지원 콘텐츠를 제공하기 위해 기계 번역 기술과 수작업 번역을 병행하여 이 문서를 번역했습니다. 아무리 품질이 높은 기계 번역이라도 전문 번역가의 번역 결과물만큼 정확하지는 않습니다. Cisco Systems, Inc.는 이 같은 번역에 대해 어떠한 책임도 지지 않으며 항상 원본 영문 문서(링크 제공됨)를 참조할 것을 권장합니다.

소개

이 문서에서는 EasyVPN을 사용하는 Cisco ASA(Adaptive Security Appliance) 5520과 Cisco PIX 506E 간의 IPsec에 대한 샘플 컨피그레이션을 제공합니다.ASA 5520은 EasyVPN 서버 역할을 하며 PIX 506E는 EasyVPN 원격 클라이언트 역할을 합니다.이 컨피그레이션에서는 ASA 소프트웨어 버전 7.0(4)을 실행하는 ASA 5520 디바이스를 사용하지만 PIX 운영 체제 버전 7.0 이상을 실행하는 PIX 방화벽 디바이스에 대해서도 이 컨피그레이션을 사용할 수 있습니다.

Cisco 871 Router가 Easy VPN Remote로 작동하는 유사한 시나리오에 대한 자세한 내용은 ASA 5500이 포함된 PIX/ASA 7.x Easy VPN with a ASA 5500 as the Server 및 Cisco 871을 참조하십시오.

Cisco VPN 3000 Concentrator가 Easy VPN Server로 작동하는 유사한 시나리오에 대한 자세한 내용은 PIX 501/506 Series Security Appliance with VPN 300 Concentrator 구성 예를 참조하십시오.

Cisco IOS 라우터가 Easy VPN Server로 작동하는 유사한 시나리오에 대한 자세한 내용은 네트워크 확장 모드에서 IOS® 라우터에 대한 PIX 501/506 Easy VPN Remote를 참조하십시오.

PIX-to-PIX 6.x 참조:Easy VPN(NEM) 컨피그레이션 PIX 506 6.x가 Easy VPN Server로 작동하는 유사한 시나리오에 대한 자세한 내용은 예를 참조하십시오.

사전 요구 사항

요구 사항

이 구성을 시도하기 전에 다음 요구 사항을 충족해야 합니다.

  • IPsec과 ASA/PIX 6.x 및 7.x 운영 체제에 대한 기본적인 이해가 있어야 합니다.

사용되는 구성 요소

이 문서의 정보는 다음 소프트웨어 및 하드웨어 버전을 기반으로 합니다.

  • EasyVPN 원격 하드웨어 클라이언트는 버전 6.3(5)을 실행하는 PIX 506E입니다.

  • EasyVPN 서버는 버전 7.0(4)을 실행하는 ASA 5520입니다.

참고: ASA 5500 Series 버전 7.x는 PIX 버전 7.x에 표시된 것과 동일한 소프트웨어를 실행합니다.이 문서의 구성은 두 제품 라인에 모두 적용됩니다.

이 문서의 정보는 특정 랩 환경의 디바이스를 토대로 작성되었습니다.이 문서에 사용된 모든 디바이스는 초기화된(기본) 컨피그레이션으로 시작되었습니다.현재 네트워크가 작동 중인 경우, 모든 명령어의 잠재적인 영향을 미리 숙지하시기 바랍니다.

표기 규칙

문서 규칙에 대한 자세한 내용은 Cisco 기술 팁 규칙을 참조하십시오.

구성

이 섹션에는 이 문서에서 설명하는 기능을 구성하기 위한 정보가 표시됩니다.

참고: 명령 조회 도구(등록된 고객만 해당)를 사용하여 이 섹션에 사용된 명령에 대한 자세한 내용을 확인하십시오.

네트워크 다이어그램

이 문서에서는 다음 네트워크 설정을 사용합니다.

ezvpn-asa5500-506e-1.gif

구성

이 문서에서는 다음 구성을 사용합니다.

Easy VPN Server(ASA 5520) 
ASA5520-704#write terminal
: Saved
:
ASA Version 7.0(4)
!
hostname ASA5520-704
enable password 8Ry2YjIyt7RRXU24 encrypted
names
!


!--- Configure the outside and inside interfaces.

interface GigabitEthernet0/0
 nameif outside
 security-level 0
 ip address 10.20.20.1 255.255.255.0
!
interface GigabitEthernet0/1
 nameif inside
 security-level 100
 ip address 172.22.1.1 255.255.255.0
!
interface GigabitEthernet0/2
 shutdown
 no nameif
 no security-level
 no ip address
!
interface GigabitEthernet0/3
 shutdown
 no nameif
 no security-level
 no ip address
!
interface Management0/0
 shutdown
 no nameif
 no security-level
 no ip address
!
passwd 2KFQnbNIdI.2KYOU encrypted
ftp mode passive


!--- This access list is used for a nat zero command that prevents !--- traffic which matches the access list from undergoing !--- network address translation (NAT). 

access-list no-nat extended permit ip 172.22.1.0 255.255.255.0 172.16.1.0 255.255.255.0

!--- This access list is used to define the traffic !--- that should pass through the tunnel. !--- It is bound to the group policy which defines !--- a dynamic crypto map.

access-list ezvpn1 extended permit ip 172.22.1.0 255.255.255.0 172.16.1.0 255.255.255.0
pager lines 24
mtu outside 1500
mtu inside 1500
no failover
icmp permit any echo-reply outside
icmp permit any inside
no asdm history enable
arp timeout 14400


!--- Specify the NAT configuration. !--- NAT 0 prevents NAT for the ACL defined in this configuration. !--- The nat 1 command specifies NAT for all other traffic.

global (outside) 1 interface
nat (inside) 0 access-list no-nat
nat (inside) 1 0.0.0.0 0.0.0.0
route outside 0.0.0.0 0.0.0.0 10.20.20.2 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00
timeout mgcp-pat 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute


!--- This defines the group policy you use with EasyVPN. !--- Specify the networks !--- that should pass through the tunnel and that you want to !--- use network extension mode.

group-policy myGROUP internal
group-policy myGROUP attributes
 split-tunnel-policy tunnelspecified
 split-tunnel-network-list value ezvpn1
 nem enable
 webvpn


!--- Here the username and password associated with !--- this VPN connection are defined. You !--- can also use AAA for this function.

username cisco password 3USUcOPFUiMCO4Jk encrypted
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart



!--- PHASE 2 CONFIGURATION ---! !--- The encryption types for Phase 2 are defined here. !--- A single DES encryption with !--- the md5 hash algorithm is used.

crypto ipsec transform-set mySET esp-des esp-md5-hmac


!--- Defines a dynamic crypto map with !--- the specified encryption settings.

crypto dynamic-map myDYN-MAP 5 set transform-set mySET


!--- Binds the dynamic map to the IPsec/ISAKMP process.

crypto map myMAP 60 ipsec-isakmp dynamic myDYN-MAP


!--- Specifies the interface to be used with !--- the settings defined in this configuration.

crypto map myMAP interface outside


!--- PHASE 1 CONFIGURATION ---! !--- This configuration uses isakmp policy 1. !--- Policy 65535 is included in the default !--- configuration. The configuration commands here define the Phase !--- 1 policies that are used.

isakmp enable outside
isakmp policy 1 authentication pre-share
isakmp policy 1 encryption des
isakmp policy 1 hash md5
isakmp policy 1 group 2
isakmp policy 1 lifetime 86400


isakmp policy 65535 authentication pre-share
isakmp policy 65535 encryption 3des
isakmp policy 65535 hash sha
isakmp policy 65535 group 2
isakmp policy 65535 lifetime 86400


!--- The tunnel-group commands bind the configurations !--- defined in this configuration to the tunnel that is !--- used for EasyVPN. This tunnel name is the one specified on the remote side.

tunnel-group mytunnel type ipsec-ra
tunnel-group mytunnel general-attributes
 default-group-policy myGROUP
tunnel-group mytunnel ipsec-attributes

!--- The pre-shared-key used here is "cisco".

 pre-shared-key *

telnet timeout 5
ssh timeout 5
console timeout 0
!
class-map inspection_default
 match default-inspection-traffic
!
!
policy-map global_policy
 class inspection_default
  inspect dns maximum-length 512
  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
Cryptochecksum:42123a94a33d8d10ae6a1505fb4ba653
: end
[OK]
ASA5520-704#

Easy VPN 원격 하드웨어 클라이언트 
pix506-635#write terminal
Building configuration...
: Saved
:
PIX Version 6.3(5)

!--- Brings the interfaces out of a shutdown state.

interface ethernet0 auto
interface ethernet1 auto


!--- Assign the interface names.

nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password 8Ry2YjIyt7RRXU24 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname pix506-635
domain-name cisco.com
fixup protocol dns maximum-length 512
fixup protocol ftp 21
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol http 80
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
fixup protocol tftp 69
names
pager lines 24
icmp permit any outside
mtu outside 1500
mtu inside 1500


!--- Assign the interface IP addresses.

ip address outside 10.10.10.1 255.255.255.0
ip address inside 172.16.1.1 255.255.255.0

ip audit info action alarm
ip audit attack action alarm
pdm history enable
arp timeout 14400


!--- Set the standard NAT configuration. !--- EasyVPN provides the NAT exceptions needed.

global (outside) 1 interface
nat (inside) 1 0.0.0.0 0.0.0.0 0 0


!--- Specify the default route.

route outside 0.0.0.0 0.0.0.0 10.10.10.2 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 sip-disconnect 0:02:00 sip-invite 0:03:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server TACACS+ max-failed-attempts 3
aaa-server TACACS+ deadtime 10
aaa-server RADIUS protocol radius
aaa-server RADIUS max-failed-attempts 3
aaa-server RADIUS deadtime 10
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


!--- EasyVPN Client Configuration ---! !--- Specify the IP address of the VPN server.

vpnclient server 10.20.20.1

!--- This example uses network extension mode.

vpnclient mode network-extension-mode

!--- Specify the group name and the pre-shared key.

vpnclient vpngroup mytunnel password ********

!--- Specify the authentication username and password.

vpnclient username cisco password ********

!---- After you issue this command, the tunnel is established.

vpnclient enable
terminal width 80
Cryptochecksum:1564fd62a9e4312020f51846bd1b3534
: end
[OK]
pix506-635#

다음을 확인합니다.

이 섹션을 사용하여 컨피그레이션이 제대로 작동하는지 확인합니다.

Output Interpreter 도구(등록된 고객만 해당)(OIT)는 특정 show 명령을 지원합니다.OIT를 사용하여 show 명령 출력의 분석을 봅니다.

PIX EasyVPN Server show 명령 및 샘플 출력

  • show crypto isakmp sa - 피어의 현재 IKE(Internet Key Exchange) 보안 연결(SA)을 모두 표시합니다. 

    ASA5520-704#show crypto isakmp sa

Active SA: 1
Rekey SA: 0 (A tunnel will report 1 Active and 1 Rekey SA during rekey)
Total IKE SA: 1

1 IKE Peer: 10.10.10.1
Type : user Role : responder
Rekey : no State : AM_ACTIVE
ASA5520-704#

  • show crypto ipsec sa - 피어 간에 구축된 IPsec SA를 표시합니다. 

    ASA5520-704#show crypto ipsec sa
interface: outside
    Crypto map tag: myDYN-MAP, seq num: 5, local addr: 10.20.20.1

local ident (addr/mask/prot/port): (172.22.1.0/255.255.255.0/0/0)
remote ident (addr/mask/prot/port): (172.16.1.0/255.255.255.0/0/0)
current_peer: 10.10.10.1, username: cisco
dynamic allocated peer ip: 0.0.0.0

#pkts encaps: 655, #pkts encrypt: 655, #pkts digest: 655
#pkts decaps: 706, #pkts decrypt: 706, #pkts verify: 706
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 655, #pkts comp failed: 0, #pkts decomp failed: 0
#send errors: 0, #recv errors: 0

local crypto endpt.: 10.20.20.1, remote crypto endpt.: 10.10.10.1

path mtu 1500, ipsec overhead 60, media mtu 1500
current outbound spi: 3EA12BBE

inbound esp sas:
spi: 0x9B94D824 (2610223140)
transform: esp-des esp-md5-hmac
in use settings ={RA, Tunnel, }
slot: 0, conn_id: 4, crypto-map: myDYN-MAP
sa timing: remaining key lifetime (sec): 25015
IV size: 8 bytes
replay detection support: Y
outbound esp sas:
spi: 0x3EA12BBE (1050749886)
transform: esp-des esp-md5-hmac
in use settings ={RA, Tunnel, }
slot: 0, conn_id: 4, crypto-map: myDYN-MAP
sa timing: remaining key lifetime (sec): 25011
IV size: 8 bytes
replay detection support: Y

ASA5520-704#

PIX EasyVPN 원격 하드웨어 클라이언트 show 명령 및 샘플 출력

  • vpnclient enable - EasyVPN 원격 연결을 활성화합니다.NEM(Network Extension Mode)에서는 헤드엔드 EasyVPN 서버와 교환할 흥미로운 트래픽이 없는 경우에도 터널이 작동합니다. 

    pix506-635(config)#vpnclient enable

  • show crypto isakmp policy - 각 IKE 정책에 대한 매개변수를 표시합니다.

    pix506-635#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 limit

    이 출력은 하드웨어 클라이언트가 활성화된 후 show crypto isakmp policy 명령을 보여줍니다.

    pix506-635(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 - 피어의 현재 모든 IKE SA를 표시합니다.

    pix506-635#show crypto isakmp sa
Total     : 1
Embryonic : 0
        dst               src        state     pending     created
      10.20.20.1       10.10.10.1    QM_IDLE         0           4
pix506-635#

  • show crypto ipsec sa - 피어 간에 구축된 IPsec SA를 표시합니다.

    pix506-635#show crypto ipsec sa


interface: outside
Crypto map tag: _vpnc_cm, local addr. 10.10.10.1

local ident (addr/mask/prot/port): (172.16.1.0/255.255.255.0/0/0)
remote ident (addr/mask/prot/port): (172.22.1.0/255.255.255.0/0/0)
current_peer: 10.20.20.1:500
PERMIT, flags={origin_is_acl,}
#pkts encaps: 706, #pkts encrypt: 706, #pkts digest 706
#pkts decaps: 655, #pkts decrypt: 655, #pkts verify 655
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 0, #pkts compr. failed: 0, #pkts decompress f ailed: 0
#send errors 1, #recv errors 0

local crypto endpt.: 10.10.10.1, remote crypto endpt.: 10.20.20.1
path mtu 1500, ipsec overhead 56, media mtu 1500
current outbound spi: 9b94d824

inbound esp sas:
spi: 0x3ea12bbe(1050749886)
transform: esp-des esp-md5-hmac ,
in use settings ={Tunnel, }
slot: 0, conn id: 3, crypto map: _vpnc_cm
sa timing: remaining key lifetime (k/sec): (4607941/24712)
IV size: 8 bytes
replay detection support: Y


inbound ah sas:


inbound pcp sas:


outbound esp sas:
spi: 0x9b94d824(2610223140)
transform: esp-des esp-md5-hmac ,
in use settings ={Tunnel, }
slot: 0, conn id: 4, crypto map: _vpnc_cm
sa timing: remaining key lifetime (k/sec): (4607958/24712)
IV size: 8 bytes
replay detection support: Y


outbound ah sas:


outbound pcp sas:

  • show vpnclient - VPN Client 또는 EasyVPN 원격 디바이스 컨피그레이션 정보를 표시합니다.

    pix506-635#show vpnclient

LOCAL CONFIGURATION
vpnclient server 10.20.20.1
vpnclient mode network-extension-mode
vpnclient vpngroup mytunnel password ********
vpnclient username cisco password ********
vpnclient enable

DOWNLOADED DYNAMIC POLICY
Current Server : 10.20.20.1
PFS Enabled : No
Secure Unit Authentication Enabled : No
User Authentication Enabled : No
Split Networks : 172.22.1.0/255.255.255.0
Backup Servers : None

pix506-635#

문제 해결

이 섹션에서는 컨피그레이션 문제를 해결하는 데 사용할 수 있는 정보를 제공합니다.

이 문서에 설명된 대로 EasyVPN 원격 하드웨어 클라이언트 및 EasyVPN 서버를 설정했지만 문제가 계속 발생하면 각 PIX의 디버그 출력 및 Cisco 기술 지원의 분석을 위한 show 명령의 출력을 수집합니다.또한 Troubleshooting the PIX to Pass Data Traffic on an Established IPSec Tunnel 또는 IP Security Troubleshooting - Understanding and Using debug Commands를 참조하십시오.PIX에서 IPsec 디버깅을 활성화합니다.

이러한 섹션에는 PIX 디버그 명령 및 샘플 출력이 표시됩니다.

Output Interpreter 도구(등록된 고객만 해당)(OIT)는 특정 show 명령을 지원합니다.OIT를 사용하여 show 명령 출력의 분석을 봅니다.

참고: debug 명령을 사용하기 전에 디버그 명령에 대한 중요 정보를 참조하십시오.

EasyVPN 서버 명령

  • debug crypto ipsec - 2단계의 IPsec 협상을 표시합니다.

  • debug crypto isakmp - 1단계의 ISAKMP 협상을 표시합니다.

샘플 출력이 여기에 표시됩니다.

ASA5520-704#debug crypto ipsec 2
ASA5520-704#debug crypto isakmp 2
ASA5520-704# Sep 15 23:02:42 [IKEv1]: IP = 10.10.10.1, Connection landed 
on tunnel_group mytunnel
Sep 15 23:02:43 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
User (cisco) authenticated.
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
PHASE 1 COMPLETED
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
IKE: requesting SPI!
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
Security negotiation complete for User (cisco)  Responder, Inbound SPI = 0x436fbef1, 
Outbound SPI = 0x5c6b5137
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
IKE: requesting SPI!
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
Starting P2 Rekey timer to expire in 27360 seconds
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
PHASE 2 COMPLETED (msgid=dc3aa1ef)
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
Security negotiation complete for User (cisco)  Responder, Inbound SPI = 0x69352d74, 
Outbound SPI = 0x4a7e47fc
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
Starting P2 Rekey timer to expire in 27360 seconds
Sep 15 23:02:48 [IKEv1]: Group = mytunnel, Username = cisco, IP = 10.10.10.1, 
PHASE 2 COMPLETED (msgid=58a397ad)

EasyVPN 원격 하드웨어 클라이언트 명령

  • debug crypto ipsec - 2단계의 IPsec 협상을 표시합니다.

  • debug crypto isakmp - 1단계의 ISAKMP 협상을 표시합니다.

    pix506-635(config)#vpnclient enable

ISAKMP (0): ID payload
next-payload : 13
type : 11
protocol : 17
port : 0
length : 12pix506-635(config)#
ISAKMP (0): Total payload length: 16
ISAKMP (0:0): sending NAT-T vendor ID - rev 2 & 3
ISAKMP (0): beginning Aggressive Mode exchange
crypto_isakmp_process_block:src:10.20.20.1, dest:10.10.10.1 spt:500 dpt:500
OAK_AG exchange
ISAKMP (0): processing SA payload. message ID = 0

ISAKMP (0): Checking ISAKMP transform 9 against priority 65001 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 0
ISAKMP (0): Checking ISAKMP transform 9 against priority 65002 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 0
ISAKMP (0): Checking ISAKMP transform 9 against priority 65003 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 0
ISAKMP (0): Checking ISAKMP transform 9 against priority 65004 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 0
ISAKMP (0): Checking ISAKMP transform 9 against priority 65005 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 0
ISAKMP (0): Checking ISAKMP transform 9 against priority 65006 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 0
ISAKMP (0): Checking ISAKMP transform 9 against priority 65007 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 0
ISAKMP (0): Checking ISAKMP transform 9 against priority 65008 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 0
ISAKMP (0): Checking ISAKMP transform 9 against priority 65009 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 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 HASH payload. message ID = 0
crypto_isakmp_process_block:src:10.20.20.1, dest:10.10.10.1 spt:500 dpt:500
crypto_isakmp_process_block:src:10.20.20.1, dest:10.10.10.1 spt:500 dpt:500
ISAKMP : attributes being requested

crypto_isakmp_process_block:src:10.20.20.1, dest:10.10.10.1 spt:500 dpt:500
ISAKMP (0): beginning Quick Mode exchange, M-ID of 1567562998:5d6f1cf6IPSEC
(key_engine): got a queue event...
IPSEC(spi_response): getting spi 0x411cf95(68276117) for SA
from 10.20.20.1 to 10.10.10.1 for prot 3

crypto_isakmp_process_block:src:10.20.20.1, dest:10.10.10.1 spt:500 dpt:500
OAK_QM exchange
oakley_process_quick_mode:
OAK_QM_IDLE
ISAKMP (0): processing SA payload. message ID = 1567562998

ISAKMP : Checking IPSec proposal 1

ISAKMP: transform 1, ESP_DES
ISAKMP: attributes in transform:
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: encaps is 1
ISAKMP: authenticator is HMAC-MD5
ISAKMP (0): atts are acceptable.IPSEC(validate_proposal_request): 
proposal part #1,
(key eng. msg.) dest= 10.20.20.1, src= 10.10.10.1,
dest_proxy= 172.22.1.0/255.255.255.0/0/0 (type=4),
src_proxy= 10.10.10.1/255.255.255.255/0/0 (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 = 1567562998

ISAKMP (0): processing ID payload. message ID = 1567562998
ISAKMP (0): processing ID payload. message ID = 1567562998
ISAKMP (0): Creating IPSec SAs
inbound SA from 10.20.20.1 to 10.10.10.1 (proxy 172.22.1.0 to 10.10.10.1)
has spi 68276117 and conn_id 5 and flags 4
lifetime of 28800 seconds
lifetime of 4608000 kilobytes
outbound SA from 10.10.10.1 to 10.20.20.1 (proxy 10.10.10.1 to 172.22.1.0)
has spi 418090151 and conn_id 6 and flags 4
lifetime of 28800 seconds
lifetime of 4608000 kilobytesIPSEC(key_engine): got a queue event...
IPSEC(initialize_sas): ,
(key eng. msg.) dest= 10.10.10.1, src= 10.20.20.1,
dest_proxy= 10.10.10.1/255.255.255.255/0/0 (type=1),
src_proxy= 172.22.1.0/255.255.255.0/0/0 (type=4),
protocol= ESP, transform= esp-des esp-md5-hmac ,
lifedur= 28800s and 4608000kb,
spi= 0x411cf95(68276117), conn_id= 5, keysize= 0, flags= 0x4
IPSEC(initialize_sas): ,
(key eng. msg.) src= 10.10.10.1, dest= 10.20.20.1,
src_proxy= 10.10.10.1/255.255.255.255/0/0 (type=1),
dest_proxy= 172.22.1.0/255.255.255.0/0/0 (type=4),
protocol= ESP, transform= esp-des esp-md5-hmac ,
lifedur= 28800s and 4608000kb,
spi= 0x18eb8ca7(418090151), conn_id= 6, keysize= 0, flags= 0x4

VPN Peer: IPSEC: Peer ip:10.20.20.1/500 Ref cnt incremented to:2 
Total VPN Peers:1
VPN Peer: IPSEC: Peer ip:10.20.20.1/500 Ref cnt incremented to:3 
Total VPN Peers:1
return status is IKMP_NO_ERROR
ISAKMP (0): beginning Quick Mode exchange, 
M-ID of 43279810:29465c2IPSEC(key_engine): got a queue event...
IPSEC(spi_response): getting spi 0xa12022dd(2703237853) for SA
from 10.20.20.1 to 10.10.10.1 for prot 3

crypto_isakmp_process_block:src:10.20.20.1, dest:10.10.10.1 spt:500 dpt:500
OAK_QM exchange
oakley_process_quick_mode:
OAK_QM_IDLE
ISAKMP (0): processing SA payload. message ID = 43279810

ISAKMP : Checking IPSec proposal 1

ISAKMP: transform 1, ESP_DES
ISAKMP: attributes in transform:
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: encaps is 1
ISAKMP: authenticator is HMAC-MD5
ISAKMP (0): atts are acceptable.IPSEC(validate_proposal_request): proposal 
part #1,
(key eng. msg.) dest= 10.20.20.1, src= 10.10.10.1,
dest_proxy= 10.20.20.1/255.255.255.255/0/0 (type=1),
src_proxy= 10.10.10.1/255.255.255.255/0/0 (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 = 43279810

ISAKMP (0): processing ID payload. message ID = 43279810
ISAKMP (0): processing ID payload. message ID = 43279810
ISAKMP (0): Creating IPSec SAs
inbound SA from 10.20.20.1 to 10.10.10.1 (proxy 10.20.20.1 to 10.10.10.1)
has spi 2703237853 and conn_id 3 and flags 4
lifetime of 28800 seconds
lifetime of 4608000 kilobytes
outbound SA from 10.10.10.1 to 10.20.20.1 (proxy 10.10.10.1 to 10.20.20.1)
has spi 1010314457 and conn_id 4 and flags 4
lifetime of 28800 seconds
lifetime of 4608000 kilobytesIPSEC(key_engine): got a queue event...
IPSEC(initialize_sas): ,
(key eng. msg.) dest= 10.10.10.1, src= 10.20.20.1,
dest_proxy= 10.10.10.1/255.255.255.255/0/0 (type=1),
src_proxy= 10.20.20.1/255.255.255.255/0/0 (type=1),
protocol= ESP, transform= esp-des esp-md5-hmac ,
lifedur= 28800s and 4608000kb,
spi= 0xa12022dd(2703237853), conn_id= 3, keysize= 0, flags= 0x4
IPSEC(initialize_sas): ,
(key eng. msg.) src= 10.10.10.1, dest= 10.20.20.1,
src_proxy= 10.10.10.1/255.255.255.255/0/0 (type=1),
dest_proxy= 10.20.20.1/255.255.255.255/0/0 (type=1),
protocol= ESP, transform= esp-des esp-md5-hmac ,
lifedur= 28800s and 4608000kb,
spi= 0x3c382cd9(1010314457), conn_id= 4, keysize= 0, flags= 0x4

VPN Peer: IPSEC: Peer ip:10.20.20.1/500 Ref cnt incremented to:4 Total 
VPN Peers:1
VPN Peer: IPSEC: Peer ip:10.20.20.1/500 Ref cnt incremented to:5 Total 
VPN Peers:1
return status is IKMP_NO_ERROR
ISAKMP (0): sending NOTIFY message 36136 protocol 1
crypto_isakmp_process_block:src:10.20.20.1, dest:10.10.10.1 spt:500 dpt:500
ISAKMP (0): processing NOTIFY payload 36137 protocol 1
spi 0, message ID = 1608818011
ISAMKP (0): received DPD_R_U_THERE_ACK from peer 10.20.20.1
return status is IKMP_NO_ERR_NO_TRANS
pix506-635(config)#

  • debug vpnclient - VPN 클라이언트에 특정한 협상을 표시합니다. 

    pix506-635(config)#vpnclient enable
pix506-635(config)# 44: VPNC CFG: transform set unconfig attempt done
45: VPNC CLI: no isakmp keepalive 10 5
46: VPNC CLI: no isakmp nat-traversal 20
47: VPNC CFG: IKE unconfig successful
48: VPNC CLI: no crypto map _vpnc_cm
49: VPNC CFG: crypto map deletion attempt done
50: VPNC CFG: crypto unconfig successful
51: VPNC CLI: no global (outside) 65001
52: VPNC CLI: no nat (inside) 0 access-list _vpnc_acl
53: VPNC CFG: nat unconfig attempt failed
54: VPNC CLI: no http 172.16.1.1 255.255.255.0 inside
55: VPNC CLI: no http server enable
56: VPNC CLI: no access-list _vpnc_acl
57: VPNC CFG: ACL deletion attempt failed
58: VPNC CLI: no crypto map _vpnc_cm interface outside
59: VPNC CFG: crypto map de/attach failed
60: VPNC CLI: no sysopt connection permit-ipsec
61: VPNC CLI: sysopt connection permit-ipsec
62: VPNC CFG: transform sets configured
63: VPNC CFG: crypto config successful
64: VPNC CLI: isakmp keepalive 10 5
65: VPNC CLI: isakmp nat-traversal 20
66: VPNC CFG: IKE config successful
67: VPNC CLI: http 172.16.1.1 255.255.255.0 inside
68: VPNC CLI: http server enable
69: VPNC CLI: aaa-server _vpnc_nwp_server protocol tacacs+
70: VPNC CLI: aaa-server _vpnc_nwp_server (outside) host 10.20.20.1
71: VPNC CLI: access-list _vpnc_nwp_acl permit ip any 172.22.1.0 255.255.255.0
72: VPNC CLI: aaa authentication match _vpnc_nwp_acl outbound _vpnc_nwp_server
73: VPNC CLI: no access-list _vpnc_acl
74: VPNC CFG: ACL deletion attempt failed
75: VPNC CLI: access-list _vpnc_acl permit ip host 10.10.10.1 host 10.20.20.1
76: VPNC CLI: crypto map _vpnc_cm 10 match address _vpnc_acl
77: VPNC CFG: crypto map acl update successful
78: VPNC CLI: no crypto map _vpnc_cm interface outside
79: VPNC CLI: crypto map _vpnc_cm interface outside
80: VPNC INF: IKE trigger request done
81: VPNC INF: Constructing policy download req
82: VPNC INF: Packing attributes for policy request
83: VPNC INF: Attributes being requested
84: VPNC ATT: ALT_SPLIT_INCLUDE
85: VPNC INF:   172.22.1.0/255.255.255.0
86: VPNC ATT: ALT_PFS: 0
87: VPNC INF: Received application version 'Cisco Systems, Inc 
ASA5520 Version 7.0(4) built by builders on Thu 13-Oct-05 21:43'
88: VPNC ATT: ALT_CFG_SEC_UNIT: 0
89: VPNC ATT: ALT_CFG_USER_AUTH: 0
90: VPNC CLI: no aaa authentication match _vpnc_nwp_acl outbound _vpnc_nwp_server
91: VPNC CLI: no access-list _vpnc_nwp_acl permit ip any 172.22.1.0 255.255.255.0
92: VPNC CLI: no aaa-server _vpnc_nwp_server
93: VPNC CLI: no access-list _vpnc_acl
94: VPNC CLI: access-list _vpnc_acl permit ip 172.16.1.0 255.255.255.0 
172.22.1.0 255.255.255.0
95: VPNC CLI: access-list _vpnc_acl permit ip host 10.10.10.1 172.22.1.0 
255.255.255.0
96: VPNC CLI: access-list _vpnc_acl permit ip host 10.10.10.1 host 10.20.20.1
97: VPNC CFG: _vpnc_acl ST define done
98: VPNC CFG: Split DNS config attempt done
99: VPNC CLI: crypto map _vpnc_cm 10 match address _vpnc_acl
100: VPNC CFG: crypto map acl update successful
101: VPNC CLI: no crypto map _vpnc_cm interface outside
102: VPNC CLI: crypto map _vpnc_cm interface outside
103: VPNC CLI: no global (outside) 65001
104: VPNC CLI: no nat (inside) 0 access-list _vpnc_acl
105: VPNC CFG: nat unconfig attempt failed
106: VPNC CLI: nat (inside) 0 access-list _vpnc_acl
107: VPNC INF: IKE trigger request done
108: VPNC INF: IKE trigger request done

pix506-635(config)#

관련 정보

기고자

  • ruhearn
    balinem

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