安全与 VPN : IPSec 协商/IKE 协议

IOS IPSec和IKE调试- IKEv1主模式排除故障

2015 年 8 月 28 日 - 机器翻译
其他版本: PDFpdf | 英语 (2015 年 4 月 23 日) | 反馈

简介

本文提供信息了解在Cisco IOS软件的调试,当使用主模式和预先共享密钥(PSK)时。

本文在配置里也提供信息关于怎样翻译某些调试线路。

这些主题没有讨论:

  • 通过流量,在通道设立了后
  • IPSec或Internet Key Exchange (IKE)基本概念

贡献用Marcin Latosiewicz,杰伊年轻人和Atri巴苏, Cisco TAC工程师。

核心问题

IKE和IPSec调试倾向于获得隐秘。Cisco技术支持中心(TAC)经常使用这些Bug了解与IPSec VPN隧道建立的一问题哪里查找。

方案

主模式典型地使用在LAN-to-LAN隧道之间,或者在远程访问(EzVPN)的情况下,当证书使用验证时。

那些调试是从运行15.2(1)T软件版本的Cisco IOS设备。

两个主要方案在本文描述:

  • IOS发起者侧
  • IOS响应方侧

在本文中,在两个站点之间的一个基于VTI的通道根据IPv6设立。

注意

请使用命令查找工具(仅限注册用户)为了得到关于用于本文的命令的更多信息。

使用 debug 命令之前,请参阅有关 Debug 命令的重要信息

使用的调试

  • debug crypto isakmp
  • debug crypto ipsec
  • debug crypto kmi

IOS 路由器配置

加密配置

crypto isakmp policy 10
authentication pre-share

crypto isakmp key cisco address ipv6 ::/0

crypto ipsec transform-set TRA esp-aes esp-sha-hmac
mode transport

crypto ipsec profile PRO
set transform-set TRA

interface Tunnel23
ip address 192.168.23.2 255.255.255.0
ipv6 address FE80::23:2 link-local
tunnel source Ethernet0/0
tunnel mode ipsec ipv6
tunnel destination 2001: DB8::3
tunnel protection ipsec profile PRO

其他旁拉

crypto isakmp policy 10
authentication pre-share

crypto isakmp key cisco address ipv6 ::/0

crypto ipsec transform-set TRA esp-aes esp-sha-hmac
mode transport

crypto ipsec profile PRO
set transform-set TRA

interface Tunnel23
ip address 192.168.23.3 255.255.255.0
ipv6 address FE80::23:3 link-local
tunnel source Ethernet0/0
tunnel mode ipsec ipv6
tunnel destination 2001: DB8::2
tunnel protection ipsec profile PRO

调试

IOS响应方旁拉

主模式消息1 (MM1)

最初的提议对于IKE包括:

  • 加密
  • 切细
  • Diffie-Hellman (DH)组
  • 寿命
*Sep 21 08:33:43.377: ISAKMP (0) : received packet from 2001: DB8::2 dport 500 
sport 500 Global (N) NEW SA
*Sep 21 08:33:43.377: ISAKMP: Created a peer struct for 2001: DB8::2, peer port
500
*Sep 21 08:33:43.377: ISAKMP: New peer created peer = 0x8E45588
peer_handle = 0x8000000A
*Sep 21 08:33:43.377: ISAKMP: Locking peer struct 0x8E45588, refcount 1 for
crypto_isakmp_process_block
*Sep 21 08:33:43.377: ISAKMP: local port 500, remote port 500
*Sep 21 08:33:43.377: ISAKMP: (0):insert sa successfully sa = 6D12A00
*Sep 21 08:33:43.377: ISAKMP: (0):Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*Sep 21 08:33:43.377: ISAKMP: (0): Old State = IKE_READY  New State = IKE_R_MM1
*Sep 21 08:33:43.377: ISAKMP: (0): processing SA payload. message ID = 0
*Sep 21 08:33:43.377: ISAKMP: (0):found peer pre-shared key matching 2001:
DB8::2
*Sep 21 08:33:43.377: ISAKMP: (0): local preshared key found
*Sep 21 08:33:43.377: ISAKMP: Scanning profiles for xauth ...
*Sep 21 08:33:43.377: ISAKMP: (0):Checking ISAKMP transform 1 against priority
10 policy
*Sep 21 08:33:43.377: ISAKMP:      encryption DES-CBC
*Sep 21 08:33:43.377: ISAKMP:      hash SHA
*Sep 21 08:33:43.377: ISAKMP:      default group 1
*Sep 21 08:33:43.377: ISAKMP:      auth pre-share
*Sep 21 08:33:43.377: ISAKMP:      life type in seconds
*Sep 21 08:33:43.377: ISAKMP:      life duration (VPI) of  0x0 0x1 0x51 0x80
*Sep 21 08:33:43.377: ISAKMP: (0):atts are acceptable. Next payload is 0
*Sep 21 08:33:43.377: ISAKMP: (0):Acceptable atts:actual life: 0
*Sep 21 08:33:43.377: ISAKMP: (0):Acceptable atts:life: 0
*Sep 21 08:33:43.377: ISAKMP: (0):Fill atts in sa vpi_length:4
*Sep 21 08:33:43.377: ISAKMP: (0):Fill atts in sa life_in_seconds:86400
*Sep 21 08:33:43.377: ISAKMP: (0):Returning Actual lifetime: 86400
*Sep 21 08:33:43.377: ISAKMP: (0):: Started lifetime timer: 86400.

*Sep 21 08:33:43.377: ISAKMP: (0):Input = IKE_MESG_INTERNAL,
IKE_PROCESS_MAIN_MODE
*Sep 21 08:33:43.377: ISAKMP: (0): Old State = IKE_R_MM1  New State = IKE_R_MM1

相关的配置:

crypto isakmp policy 10
authentication pre-share

主模式消息2 (MM2) -发送我们的回复

*Sep 21 08:33:43.377: ISAKMP: (0): sending packet to 2001: DB8::2 my_port 500 
peer_port 500 (R) MM_SA_SETUP
*Sep 21 08:33:43.377: ISAKMP: (0): Sending an IKE IPv6 Packet.
*Sep 21 08:33:43.377: ISAKMP: (0):Input = IKE_MESG_INTERNAL,
IKE_PROCESS_COMPLETE
*Sep 21 08:33:43.377: ISAKMP: (0): Old State = IKE_R_MM1  New State = IKE_R_MM2

主模式消息3 (MM3)

包括:

  • 网络地址转换(NAT)发现
  • DH交换第一部分
*Sep 21 08:33:43.381: ISAKMP (0): received packet from 2001:DB8::2 dport 500 
sport 500 Global (R) MM_SA_SETUP
*Sep 21 08:33:43.381: ISAKMP: (0):Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*Sep 21 08:33:43.381: ISAKMP: (0): Old State = IKE_R_MM2  New State = IKE_R_MM3
*Sep 21 08:33:43.381: ISAKMP: (0): processing KE payload. message ID = 0
*Sep 21 08:33:43.393: ISAKMP: (0): processing NONCE payload. message ID = 0
*Sep 21 08:33:43.393: ISAKMP: (0):found peer pre-shared key matching 2001:
DB8::2
*Sep 21 08:33:43.393: ISAKMP: (1011): processing vendor id payload
*Sep 21 08:33:43.393: ISAKMP: (1011): vendor ID is DPD
*Sep 21 08:33:43.393: ISAKMP: (1011): processing vendor id payload
*Sep 21 08:33:43.393: ISAKMP: (1011): speaking to another IOS box!
*Sep 21 08:33:43.393: ISAKMP: (1011): processing vendor id payload
*Sep 21 08:33:43.393: ISAKMP: (1011): vendor ID seems Unity/DPD but major 0
mismatch
*Sep 21 08:33:43.393: ISAKMP: (1011): vendor ID is XAUTH
*Sep 21 08:33:43.393: ISAKMP: (1011):Input = IKE_MESG_INTERNAL,
IKE_PROCESS_MAIN_MODE
*Sep 21 08:33:43.393: ISAKMP: (1011): Old State = IKE_R_MM3  New State =
IKE_R_MM3

主模式消息4 (MM4)

包括:

  • NAT检测有效负载
  • DH交换的继续
*Sep 21 08:33:43.405: ISAKMP: (1011): sending packet to 2001: DB8::2 my_port 
500 peer_port 500 (R) MM_KEY_EXCH
*Sep 21 08:33:43.405: ISAKMP: (1011): Sending an IKE IPv6 Packet.
*Sep 21 08:33:43.405: ISAKMP: (1011):Input = IKE_MESG_INTERNAL,
IKE_PROCESS_COMPLETE
*Sep 21 08:33:43.405: ISAKMP: (1011): Old State = IKE_R_MM3  New State =
IKE_R_MM4

主模式消息5 (MM5) -发起者发送其标识

包括:

  • 本地身份信息
  • 密钥
*Sep 21 08:33:43.425: ISAKMP (1011): received packet from 2001: DB8::2 dport 
500 sport 500 Global (R) MM_KEY_EXCH
*Sep 21 08:33:43.425: ISAKMP: (1011):Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*Sep 21 08:33:43.425: ISAKMP: (1011): Old State = IKE_R_MM4  New State =
IKE_R_MM5

*Sep 21 08:33:43.425: ISAKMP: (1011): processing ID payload. message ID = 0
*Sep 21 08:33:43.425: ISAKMP (1011): ID payload
        next-payload : 8
        type         : 5
        address      : 2001: DB8::2
        protocol     : 17
        port         : 500
        length       : 24
*Sep 21 08:33:43.425: ISAKMP: (0):: peer matches *none* of the profiles
*Sep 21 08:33:43.425: ISAKMP: (1011): processing HASH payload. message ID = 0
*Sep 21 08:33:43.425: ISAKMP: (1011): processing NOTIFY INITIAL_CONTACT
protocol 1 spi 0, message ID = 0, sa = 0x6D12A00
*Sep 21 08:33:43.425: ISAKMP: (1011): SA authentication status: authenticated
*Sep 21 08:33:43.425: ISAKMP: (1011): SA has been authenticated with 2001:
DB8::2
*Sep 21 08:33:43.425: ISAKMP: (1011): SA authentication status: authenticated
*Sep 21 08:33:43.425: ISAKMP: (1011): Process initial contact, bring down
existing phase 1 and 2 SA's with local 2001: DB8::3 remote 2001: DB8::2
remote port 500
*Sep 21 08:33:43.425: ISAKMP: Trying to insert a peer 2001: DB8::3/2001:
DB8::2/500/,  and inserted successfully 8E45588.
*Sep 21 08:33:43.425: ISAKMP: (1011):Input = IKE_MESG_INTERNAL,
IKE_PROCESS_MAIN_MODE
*Sep 21 08:33:43.425: ISAKMP: (1011): Old State = IKE_R_MM5  New State =
IKE_R_MM5

主模式消息6 (MM6) -响应方发送其标识。阶段1完成。

包括:

  • 从对等体发送的远程标识
  • 关于隧道组的最终决策选择
*Sep 21 08:33:43.425: IPSEC(key_engine): got a queue event with 1 KMI message(s)
*Sep 21 08:33:43.425: ISAKMP: (1011): SA is doing pre-shared key authentication
using id type ID_IPV6_ADDR
*Sep 21 08:33:43.425: ISAKMP (1011): ID payload
        next-payload : 8
        type         : 5
        address      : 2001: DB8::3
        protocol     : 17
        port         : 500
        length       : 24
*Sep 21 08:33:43.425: ISAKMP: (1011):Total payload length: 24
*Sep 21 08:33:43.425: ISAKMP: (1011): sending packet to 2001: DB8::2 my_port
500 peer_port 500 (R) MM_KEY_EXCH
*Sep 21 08:33:43.425: ISAKMP: (1011): Sending an IKE IPv6 Packet.
*Sep 21 08:33:43.425: ISAKMP: (1011):Input = IKE_MESG_INTERNAL,
IKE_PROCESS_COMPLETE
*Sep 21 08:33:43.425: ISAKMP: (1011): Old State = IKE_R_MM5  New State =
IKE_P1_COMPLETE

相关的配置:

crypto isakmp identity ...

快速模式消息1 (QM1)

*Sep 21 08:33:43.433: ISAKMP (1011): received packet from 2001: DB8::2 dport 
500 sport 500 Global (R) QM_IDLE
*Sep 21 08:33:43.433: ISAKMP: set new node 1371333358 to QM_IDLE
*Sep 21 08:33:43.433: ISAKMP: (1011): processing HASH payload. message ID =
1371333358
*Sep 21 08:33:43.433: ISAKMP: (1011): processing SA payload. message ID =
1371333358
*Sep 21 08:33:43.433: ISAKMP: (1011):Checking IPSec proposal 1
*Sep 21 08:33:43.433: ISAKMP: transform 1, ESP_AES
*Sep 21 08:33:43.433: ISAKMP:   attributes in transform:
*Sep 21 08:33:43.433: ISAKMP:      encaps is 1 (Tunnel)
*Sep 21 08:33:43.433: ISAKMP:      SA life type in seconds
*Sep 21 08:33:43.433: ISAKMP:      SA life duration (basic) of 3600
*Sep 21 08:33:43.433: ISAKMP:      SA life type in kilobytes
*Sep 21 08:33:43.433: ISAKMP:      SA life duration (VPI) of  0x0 0x46 0x50 0x0
*Sep 21 08:33:43.433: ISAKMP:      authenticator is HMAC-SHA
*Sep 21 08:33:43.433: ISAKMP:      key length is 128
*Sep 21 08:33:43.433: ISAKMP: (1011):atts are acceptable.
*Sep 21 08:33:43.433: IPSEC(validate_proposal_request): proposal part #1
*Sep 21 08:33:43.433: IPSEC(validate_proposal_request): proposal part #1,
  (key eng. msg.) INBOUND local= 2001: DB8::3:0, remote= 2001: DB8::2:0,
    local_proxy= ::/0/256/0,
    remote_proxy= ::/0/256/0,
    protocol= ESP, transform= NONE  (Tunnel),
    lifedur= 0s and 0kb,
    spi= 0x0(0), conn_id= 0, keysize= 128, flags= 0x0
*Sep 21 08:33:43.433: ISAKMP: (1011): processing NONCE payload. message ID =
1371333358
*Sep 21 08:33:43.433: ISAKMP: (1011): processing ID payload. message ID =
1371333358
*Sep 21 08:33:43.433: ISAKMP: (1011): processing ID payload. message ID =
1371333358
*Sep 21 08:33:43.433: ISAKMP: (1011):QM Responder gets spi
*Sep 21 08:33:43.433: ISAKMP: (1011):Node 1371333358, Input =
IKE_MESG_FROM_PEER, IKE_QM_EXCH
*Sep 21 08:33:43.433: ISAKMP: (1011): Old State = IKE_QM_READY  New State =
IKE_QM_SPI_STARVE

相关配置:

tunnel mode ipsec ipv6

快速模式消息2 (QM2)

包括:

  • 远程终端发送参数
  • 短两个报价的第2阶段寿命选择
*Sep 21 08:33:43.433: ISAKMP: (1011): sending packet to 2001: DB8::2 my_port 
500 peer_port 500 (R) QM_IDLE
*Sep 21 08:33:43.433: ISAKMP: (1011): Sending an IKE IPv6 Packet.
*Sep 21 08:33:43.433: ISAKMP: (1011):Node 1371333358, Input =
IKE_MESG_INTERNAL, IKE_GOT_SPI
*Sep 21 08:33:43.433: ISAKMP: (1011): Old State = IKE_QM_SPI_STARVE  New
State = IKE_QM_R_QM2
*Sep 21 08:33:43.437: IPSEC(key_engine): got a queue event with 1 KMI message(s)
R3(config-if)#
*Sep 21 08:33:43.437: IPSEC(crypto_ipsec_create_ipsec_sas): Map found
Tunnel23-head-0
*Sep 21 08:33:43.437: IPSEC(crypto_ipsec_sa_find_ident_head): reconnecting
with the same proxies and peer 2001: DB8::2
*Sep 21 08:33:43.437: IPSEC(create_sa): sa created,
  (sa) sa_dest= 2001: DB8::3, sa_proto= 50,
    sa_spi= 0x221A7153(572158291),
    sa_trans= esp-aes esp-sha-hmac , sa_conn_id= 305
    sa_lifetime(k/sec)= (4608000/3532)
*Sep 21 08:33:43.437: IPSEC(create_sa): sa created,
  (sa) sa_dest= 2001: DB8::2, sa_proto= 50,
    sa_spi= 0x45F16A9A(1173449370),
    sa_trans= esp-aes esp-sha-hmac , sa_conn_id= 306
    sa_lifetime(k/sec)= (4608000/3532)

相关配置:

crypto ipsec transform-set TRA esp-aes esp-sha-hmac
mode transport
crypto ipsec profile PRO
set transform-set TRA
interface tunnel23
tunnel mode ipsec ipv6
tunnel protection ipsec profile PRO

快速模式消息3 (QM3) -相位两应该完成和隧道接口上升

*Sep 21 08:33:43.437: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel23,
changed state to up

*Sep 21 08:33:43.437: ISAKMP (1011): received packet from 2001: DB8::2 dport
500 sport 500 Global (R) QM_IDLE
*Sep 21 08:33:43.437: ISAKMP: (1011): deleting node 1371333358 error FALSE
reason "QM done (await)"
*Sep 21 08:33:43.437: ISAKMP: (1011):Node 1371333358, Input =
IKE_MESG_FROM_PEER, IKE_QM_EXCH
*Sep 21 08:33:43.437: ISAKMP: (1011): Old State = IKE_QM_R_QM2  New State =
IKE_QM_PHASE2_COMPLETE

*Sep 21 08:33:43.437: IPSEC(key_engine): got a queue event with 1 KMI message(s
*Sep 21 08:33:43.437: IPSEC(key_engine_enable_outbound): rec'd enable notify
from ISAKMP

IOS路由器-发起者

主模式消息1 (MM1) -初始联系

包括:

  • 供应商ID (VID)
  • 产能
  • 阶段1建议
  • IKE安全关联(SA)
  • IPSec已经创建SAS的一个模板
*Sep 21 08:33:43.245: %CRYPTO-6-ISAKMP_ON_OFF: ISAKMP is ON
*Sep 21 08:33:43.245: IPSEC(sa ident sadb root initialize created IPv6 ACL %s)
: Tunnel23-head-0-65537-Tunnel23-head-0-ACL-6-IPSECV6-ACL
*Sep 21 08:33:43.245: IPSEC(recalculate_mtu) : reset sadb_root 79E82A8 mtu to
1500
*Sep 21 08:33:43.245: IPSEC(adjust_mtu) : adjusting ident ip mtu from 1460 to
1500,
  (identity) local= 2001: DB8::2:0, remote= 2001: DB8::3:0,
    local_proxy= ::/0/256/0,
    remote_proxy= ::/0/256/0
*Sep 21 08:33:43.245: IPSEC(adjust_mtu): adjusting path mtu from 1460 to 1500,
  (identity) local= 2001: DB8::2:0, remote= 2001: DB8::3:0,
    local_proxy= ::/0/256/0,
    remote_proxy= ::/0/256/0
*Sep 21 08:33:43.245: IPSEC(sa_request): ,
  (key eng. msg.) OUTBOUND local= 2001: DB8::2:500, remote= 2001: DB8::3:500,
    local_proxy= ::/0/256/0,
    remote_proxy= ::/0/256/0,
    protocol= ESP, transform= esp-aes esp-sha-hmac  (Tunnel),
    lifedur= 3600s and 4608000kb,
    spi= 0x0(0), conn_id= 0, keysize= 128, flags= 0x0
*Sep 21 08:33:43.245: ISAKMP: (0): SA request profile is (NULL)
*Sep 21 08:33:43.245: ISAKMP: Created a peer struct for 2001: DB8::3, peer port
500
*Sep 21 08:33:43.245: ISAKMP: New peer created peer = 0x9344BE8 peer_handle =
0x80000008
*Sep 21 08:33:43.245: ISAKMP: Locking peer struct 0x9344BE8, refcount 1 for
isakmp_initiator
*Sep 21 08:33:43.245: ISAKMP: local port 500, remote port 500
*Sep 21 08:33:43.245: ISAKMP: set new node 0 to QM_IDLE
*Sep 21 08:33:43.245: ISAKMP: (0):insert sa successfully sa = 944C840
*Sep 21 08:33:43.245: ISAKMP: (0):Can not start Aggressive mode, trying Main
mode.
*Sep 21 08:33:43.245: ISAKMP: (0):found peer pre-shared key matching 2001:
DB8::3
*Sep 21 08:33:43.245: ISAKMP: (0):Input = IKE_MESG_FROM_IPSEC, IKE_SA_REQ_MM
*Sep 21 08:33:43.245: ISAKMP: (0): Old State = IKE_READY  New State = IKE_I_MM1
*Sep 21 08:33:43.245: ISAKMP: (0): beginning Main Mode exchange
*Sep 21 08:33:43.245: ISAKMP: (0): sending packet to 2001: DB8::3 my_port 500
peer_port 500 (I) MM_NO_STATE
*Sep 21 08:33:43.245: ISAKMP: (0): Sending an IKE IPv6 Packet.

相关配置:

crypto isakmp policy 10
authentication pre-share

主模式消息2 (MM2) -对初始联系的回复

包括:

  • 对等体选择互联网安全协会和密钥管理协议(ISAKMP)策略使用
  • SA IKE
*Sep 21 08:33:43.249: ISAKMP (0): received packet from 2001: DB8::3 dport 500 
sport 500 Global (I) MM_NO_STATE
*Sep 21 08:33:43.249: ISAKMP: (0):Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*Sep 21 08:33:43.249: ISAKMP: (0): Old State = IKE_I_MM1  New State = IKE_I_MM2

*Sep 21 08:33:43.249: ISAKMP: (0): processing SA payload. message ID = 0
*Sep 21 08:33:43.249: ISAKMP: (0):found peer pre-shared key matching 2001:
DB8::3
*Sep 21 08:33:43.249: ISAKMP: (0): local preshared key found
*Sep 21 08:33:43.249: ISAKMP : Scanning profiles for xauth ...
*Sep 21 08:33:43.249: ISAKMP: (0):Checking ISAKMP transform 1 against priority
10 policy
*Sep 21 08:33:43.249: ISAKMP:      encryption DES-CBC
*Sep 21 08:33:43.249: ISAKMP:      hash SHA
*Sep 21 08:33:43.249: ISAKMP:      default group 1
*Sep 21 08:33:43.249: ISAKMP:      auth pre-share
*Sep 21 08:33:43.249: ISAKMP:      life type in seconds
*Sep 21 08:33:43.249: ISAKMP:      life duration (VPI) of  0x0 0x1 0x51 0x80
*Sep 21 08:33:43.249: ISAKMP: (0):atts are acceptable. Next payload is 0
*Sep 21 08:33:43.249: ISAKMP: (0):Acceptable atts:actual life: 0
*Sep 21 08:33:43.249: ISAKMP: (0):Acceptable atts:life: 0
*Sep 21 08:33:43.249: ISAKMP: (0):Fill atts in sa vpi_length:4
*Sep 21 08:33:43.249: ISAKMP: (0):Fill atts in sa life_in_seconds:86400
*Sep 21 08:33:43.249: ISAKMP: (0):Returning Actual lifetime: 86400
*Sep 21 08:33:43.249: ISAKMP: (0):: Started lifetime timer: 86400.

*Sep 21 08:33:43.249: ISAKMP: (0):Input = IKE_MESG_INTERNAL,
IKE_PROCESS_MAIN_MODE
*Sep 21 08:33:43.249: ISAKMP: (0): Old State = IKE_I_MM2  New State =
IKE_I_MM2

主模式消息3 (MM3) - NAT发现号和Diffie-Hellman交换

包括:

  • NAT发现有效负载和哈希
  • DH交换开始
  • 对端死机检测(DPD)支持
*Sep 21 08:33:43.249: ISAKMP: (0): sending packet to 2001: DB8::3 my_port 500 
peer_port 500 (I) MM_SA_SETUP
*Sep 21 08:33:43.249: ISAKMP: (0): Sending an IKE IPv6 Packet.
*Sep 21 08:33:43.249: ISAKMP: (0):Input = IKE_MESG_INTERNAL,
IKE_PROCESS_COMPLETE
*Sep 21 08:33:43.249: ISAKMP: (0): Old State = IKE_I_MM2  New State = IKE_I_MM3

主模式消息4 (MM4) - NAT发现号和Diffie-Hellman交换

包括:

  • NAT发现有效负载
  • DH交换开始
  • 另外的VIDs (DPD, Unity支持)
  • 知识谈与另一个IOS设备
*Sep 21 08:33:43.273: ISAKMP (0): received packet from 2001: DB8::3 dport 500 
sport 500 Global (I) MM_SA_SETUP
*Sep 21 08:33:43.273: ISAKMP: (0):Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*Sep 21 08:33:43.273: ISAKMP: (0): Old State = IKE_I_MM3  New State = IKE_I_MM4

*Sep 21 08:33:43.273: ISAKMP: (0): processing KE payload. message ID = 0
*Sep 21 08:33:43.281: ISAKMP: (0): processing NONCE payload. message ID = 0
*Sep 21 08:33:43.281: ISAKMP: (0):found peer pre-shared key matching 2001:
DB8::3
*Sep 21 08:33:43.281: ISAKMP: (1011): processing vendor id payload
*Sep 21 08:33:43.281: ISAKMP: (1011): vendor ID is Unity
*Sep 21 08:33:43.281: ISAKMP: (1011): processing vendor id payload
*Sep 21 08:33:43.281: ISAKMP: (1011): vendor ID is DPD
*Sep 21 08:33:43.281: ISAKMP: (1011): processing vendor id payload
*Sep 21 08:33:43.281: ISAKMP: (1011): speaking to another IOS box!
*Sep 21 08:33:43.281: ISAKMP: (1011):Input = IKE_MESG_INTERNAL,
IKE_PROCESS_MAIN_MODE
*Sep 21 08:33:43.281: ISAKMP: (1011): Old State = IKE_I_MM4  New State =
IKE_I_MM4

主模式消息5 (MM5) -发送标识

包括:

  • 远端对等体标识(ID)
*Sep 21 08:33:43.293: ISAKMP: (1011): Send initial contact
*Sep 21 08:33:43.293: ISAKMP: (1011): SA is doing pre-shared key authentication
using id type ID_IPV6_ADDR
*Sep 21 08:33:43.293: ISAKMP (1011): ID payload
        next-payload : 8
        type         : 5
        address      : 2001: DB8::2
        protocol     : 17
        port         : 500
        length       : 24
*Sep 21 08:33:43.293: ISAKMP: (1011):Total payload length: 24
*Sep 21 08:33:43.293: ISAKMP: (1011): sending packet to 2001: DB8::3 my_port
500 peer_port 500 (I) MM_KEY_EXCH
*Sep 21 08:33:43.293: ISAKMP: (1011): Sending an IKE IPv6 Packet.
*Sep 21 08:33:43.293: ISAKMP: (1011):Input = IKE_MESG_INTERNAL,
IKE_PROCESS_COMPLETE
*Sep 21 08:33:43.293: ISAKMP: (1011): Old State = IKE_I_MM4  New State =
IKE_I_MM5

相关配置:

crypto isakmp identity ... 

主模式消息6 (MM6) -远端对等体标识,阶段1设立

包括:

  • 重新生成密钥开始的时期
  • 远程标识(在这种情况下地址)
  • 决策登陆在配置文件
*Sep 21 08:33:43.297: ISAKMP (1011): received packet from 2001: DB8::3 dport 
500 sport 500 Global (I) MM_KEY_EXCH
*Sep 21 08:33:43.297: ISAKMP: (1011): processing ID payload. message ID = 0
*Sep 21 08:33:43.297: ISAKMP (1011): ID payload
        next-payload : 8
        type         : 5
        address      : 2001: DB8::3
        protocol     : 17
        port         : 500
        length       : 24
*Sep 21 08:33:43.297: ISAKMP: (0):: peer matches *none* of the profiles
*Sep 21 08:33:43.297: ISAKMP: (1011): processing HASH payload. message ID = 0
*Sep 21 08:33:43.297: ISAKMP: (1011): SA authentication status: authenticated
*Sep 21 08:33:43.297: ISAKMP: (1011): SA has been authenticated with 2001:
DB8::3
*Sep 21 08:33:43.297: ISAKMP: Trying to insert a peer 2001: DB8::2/2001:
DB8::3/500/,  and inserted successfully 9344BE8.
*Sep 21 08:33:43.297: ISAKMP: (1011):Input = IKE_MESG_FROM_PEER, IKE_MM_EXCH
*Sep 21 08:33:43.297: ISAKMP: (1011): Old State = IKE_I_MM5  New State =
IKE_I_MM6

*Sep 21 08:33:43.297: ISAKMP: (1011):Input = IKE_MESG_INTERNAL,
IKE_PROCESS_MAIN_MODE
*Sep 21 08:33:43.297: ISAKMP: (1011): Old State = IKE_I_MM6  New State =
IKE_I_MM6

*Sep 21 08:33:43.301: ISAKMP: (1011):Input = IKE_MESG_INTERNAL,
IKE_PROCESS_COMPLETE
*Sep 21 08:33:43.301: ISAKMP: (1011): Old State = IKE_I_MM6  New State =
IKE_P1_COMPLETE

相关配置:

crypto isakmp identity ... 

快速模式消息1 (QM1) -对等体开始第2阶段

包括:

  • 远程和本地代理ID
  • 变换集
*Sep 21 08:33:43.301: ISAKMP: (1011):beginning Quick Mode exchange, M-ID of 
1371333358*Sep 21 08:33:43.301: ISAKMP: (1011):QM Initiator gets spi
*Sep 21 08:33:43.301: ISAKMP: (1011): sending packet to 2001: DB8::3 my_port
500 peer_port 500 (I) QM_IDLE
*Sep 21 08:33:43.301: ISAKMP: (1011): Sending an IKE IPv6 Packet.
*Sep 21 08:33:43.301: ISAKMP: (1011):Node 1371333358, Input =
IKE_MESG_INTERNAL, IKE_INIT_QM
*Sep 21 08:33:43.301: ISAKMP: (1011): Old State = IKE_QM_READY  New State =
IKE_QM_I_QM1
*Sep 21 08:33:43.301: ISAKMP: (1011):Input = IKE_MESG_INTERNAL,
IKE_PHASE1_COMPLETE
*Sep 21 08:33:43.301: ISAKMP: (1011): Old State = IKE_P1_COMPLETE  New State =
IKE_P1_COMPLETE

相关配置:

crypto ipsec transform-set TRA esp-aes esp-sha-hmac
mode transport

crypto ipsec profile PRO
set transform-set TRA

快速模式消息2 (QM2)

包括:

  • 代理身分的确认
  • 隧道类型
  • 完善的转发秘密(PFS)设置
*Sep 21 08:33:43.305: ISAKMP (1011): received packet from 2001: DB8::3 dport 
500 sport 500 Global (I) QM_IDLE
*Sep 21 08:33:43.305: ISAKMP: (1011): processing HASH payload. message ID =
1371333358
*Sep 21 08:33:43.305: ISAKMP: (1011): processing SA payload. message ID =
1371333358
*Sep 21 08:33:43.305: ISAKMP: (1011):Checking IPSec proposal 1
*Sep 21 08:33:43.305: ISAKMP: transform 1, ESP_AES
*Sep 21 08:33:43.305: ISAKMP:   attributes in transform:
*Sep 21 08:33:43.305: ISAKMP:      encaps is 1 (Tunnel)
*Sep 21 08:33:43.305: ISAKMP:      SA life type in seconds
*Sep 21 08:33:43.305: ISAKMP:      SA life duration (basic) of 3600
*Sep 21 08:33:43.305: ISAKMP:      SA life type in kilobytes
*Sep 21 08:33:43.305: ISAKMP:      SA life duration (VPI) of  0x0 0x46 0x50 0x0
*Sep 21 08:33:43.305: ISAKMP:      authenticator is HMAC-SHA
*Sep 21 08:33:43.305: ISAKMP:      key length is 128
*Sep 21 08:33:43.305: ISAKMP: (1011):atts are acceptable.
*Sep 21 08:33:43.305: IPSEC(validate_proposal_request): proposal part #1
*Sep 21 08:33:43.305: IPSEC(validate_proposal_request): proposal part #1,
  (key eng. msg.) INBOUND local= 2001: DB8::2:0, remote= 2001: DB8::3:0,
    local_proxy= ::/0/256/0,
    remote_proxy= ::/0/256/0,
    protocol= ESP, transform= NONE  (Tunnel),
    lifedur= 0s and 0kb,
    spi= 0x0(0), conn_id= 0, keysize= 128, flags= 0x0
*Sep 21 08:33:43.305: ISAKMP: (1011): processing NONCE payload. message ID =
1371333358
*Sep 21 08:33:43.305: ISAKMP: (1011): processing ID payload. message ID =
1371333358
*Sep 21 08:33:43.305: ISAKMP: (1011): processing ID payload. message ID =
1371333358

相关配置:

crypto ipsec transform-set TRA esp-aes esp-sha-hmac
mode transport

crypto ipsec profile PRO
set transform-set TRA

interface tunnel23
tunnel mode ipsec ipv6
tunnel protection ipsec profile PRO

快速模式消息3 (QM3) -第2阶段建立

包括:

  • 设置通过流量的安全策略索引(斯皮)
*Sep 21 08:33:43.305: ISAKMP: (1011): Sending an IKE IPv6 Packet.
*Sep 21 08:33:43.305: ISAKMP: (1011): deleting node 1371333358 error FALSE
reason "No Error"
*Sep 21 08:33:43.305: ISAKMP: (1011):Node 1371333358, Input =
IKE_MESG_FROM_PEER, IKE_QM_EXCH
*Sep 21 08:33:43.305: ISAKMP: (1011): Old State = IKE_QM_I_QM1  New State =
IKE_QM_PHASE2_COMPLETE
*Sep 21 08:33:43.305: IPSEC(key_engine): got a queue event with 1 KMI message(s)
*Sep 21 08:33:43.305: IPSEC(crypto_ipsec_create_ipsec_sas): Map found
Tunnel23-head-0
*Sep 21 08:33:43.305: IPSEC(crypto_ipsec_sa_find_ident_head): reconnecting
with the same proxies and peer 2001: DB8::3
*Sep 21 08:33:43.305: IPSEC(create_sa): sa created,
  (sa) sa_dest= 2001: DB8::2, sa_proto= 50,
    sa_spi= 0x45F16A9A(1173449370),
    sa_trans= esp-aes esp-sha-hmac , sa_conn_id= 305
    sa_lifetime(k/sec)= (4608000/3439)
*Sep 21 08:33:43.305: IPSEC(create_sa): sa created,
  (sa) sa_dest= 2001: DB8::3, sa_proto= 50,
    sa_spi= 0x221A7153(572158291),
    sa_trans= esp-aes esp-sha-hmac , sa_conn_id= 306
    sa_lifetime(k/sec)= (4608000/3439)
R2(config-if)#
*Sep 21 08:33:43.309: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Tunnel23, changed state to up

通道验证

sh crypto ipsec sa

interface: Tunnel23
    Crypto map tag: Tunnel23-head-0, local addr 2001: DB8::2

   protected vrf: (none)
   local  ident (addr/mask/prot/port): (::/0/0/0)
   remote ident (addr/mask/prot/port): (::/0/0/0)
   current_peer 2001: DB8::3 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 0, #recv errors 0

     local crypto endpt.: 2001: DB8::2,
     remote crypto endpt.: 2001: DB8::3
     path mtu 1500, ipv6 mtu 1500, ipv6 mtu idb Ethernet0/0
     current outbound spi: 0x221A7153(572158291)
     PFS (Y/N): N, DH group: none

     inbound esp sas:
      spi: 0x45F16A9A(1173449370)
        transform: esp-aes esp-sha-hmac ,
        in use settings ={Tunnel, }
        conn id: 305, flow_id: SW:305, sibling_flags 80000041, crypto map:
Tunnel23-head-0
        sa timing: remaining key lifetime (k/sec): (4183789/3408)
        IV size: 16 bytes
        replay detection support: Y
        Status: ACTIVE

     inbound ah sas:

     inbound pcp sas:

     outbound esp sas:
      spi: 0x221A7153(572158291)
        transform: esp-aes esp-sha-hmac ,
        in use settings ={Tunnel, }
        conn id: 306, flow_id: SW:306, sibling_flags 80000041, crypto map:
Tunnel23-head-0
        sa timing: remaining key lifetime (k/sec): (4183790/3408)
        IV size: 16 bytes
        replay detection support: Y
        Status: ACTIVE

R2(config-if)#do ping fe80::23:3
Output Interface: tunnel23
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to FE80::23:3, timeout is 2 seconds:
Packet sent with a source address of FE80::23:2%Tunnel23
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 8/11/20 ms
R2(config-if)#do sh crypto ipsec sa | i caps|ident
   local  ident (addr/mask/prot/port): (::/0/0/0)
   remote ident (addr/mask/prot/port): (::/0/0/0)
    #pkts encaps: 9, #pkts encrypt: 9, #pkts digest: 9
    #pkts decaps: 9, #pkts decrypt: 9, #pkts verify: 9

通道启用和通过流量。

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Document ID: 113594