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模拟器配置多分支ipsec不通

2025-04-27提问
  • 0关注
  • 0收藏,400浏览
粉丝:4人 关注:1人

问题描述:

查看IKE  sa和ipsec sa都没问题,就是ping不通

A设备配置

interface GigabitEthernet0/0

 port link-mode route

 combo enable copper

 ip address 10.0.0.1 255.255.255.0

 ipsec apply policy 22

#

interface GigabitEthernet0/1

 port link-mode route

 combo enable copper

 ip address 10.0.1.1 255.255.255.0

 ipsec apply policy 22

#

ipsec transform-set 1

 esp encryption-algorithm 3des-cbc

 esp authentication-algorithm md5

#

ipsec policy-template 22 1

 transform-set 1

 security acl 3000

 ike-profile B

#

ipsec policy-template 33 1

 transform-set 1

 security acl 3100

 ike-profile C

#

ipsec policy 22 1 isakmp template 22

#

ipsec policy 22 2 isakmp template 33

#

 ike identity fqdn AAA

#

ike profile B

 keychain B

 exchange-mode aggressive

 local-identity fqdn AAA

 match remote identity fqdn BBB

#

ike profile C

 keychain C

 exchange-mode aggressive

 local-identity fqdn AAA

 match remote identity fqdn CCC

#

ike keychain B

 pre-shared-key hostname BBB key cipher $c$3$eh2VpqPO1Y/PwMlyYc3PKryT8KmTYqCkVQ==

#

ike keychain C

 pre-shared-key hostname CCC key cipher $c$3$Ecg3VJka+w4NTWJeyJofHWAkZJCDMyIGcw==

#

acl advanced 3000

 rule 0 permit ip source 1.1.1.1 0 destination 2.2.2.2 0

 rule 5 permit ip source 3.3.3.3 0 destination 2.2.2.2 0

#

acl advanced 3100

 rule 0 permit ip source 1.1.1.1 0 destination 3.3.3.3 0

 rule 5 permit ip source 2.2.2.2 0 destination 3.3.3.3 0

B设备配置

interface LoopBack0

 ip address 2.2.2.2 255.255.255.0

#

interface GigabitEthernet0/0

 port link-mode route

 combo enable copper

 ip address 10.0.0.2 255.255.255.0

 ipsec apply policy 1

#

ipsec transform-set 1

 esp encryption-algorithm 3des-cbc

 esp authentication-algorithm md5

#

ipsec policy 1 1 isakmp

 transform-set 1

 security acl 3000

 remote-address 10.0.0.1

 ike-profile 1

#

 ike identity fqdn BBB

#

ike profile 1

 keychain 1

 exchange-mode aggressive

 local-identity fqdn BBB

 match remote identity fqdn AAA

#

ike keychain 1

 pre-shared-key address 10.0.0.1 255.255.255.255 key cipher $c$3$ju6mTxpNNK6XKQ2ZFwrNfkFSSUPj1uiGLw==

#

acl advanced 3000

 rule 0 permit ip source 2.2.2.2 0 destination 1.1.1.1 0

 rule 5 permit ip source 2.2.2.2 0 destination 3.3.3.3 0

#

C设备配置

interface LoopBack0

 ip address 3.3.3.3 255.255.255.0

#

interface GigabitEthernet0/0

 port link-mode route

 combo enable copper

 ip address 10.0.1.2 255.255.255.0

 ipsec apply policy 1

#

ipsec transform-set 1

 esp encryption-algorithm 3des-cbc

 esp authentication-algorithm md5

#

ipsec policy 1 1 isakmp

 transform-set 1

 security acl 3000

 remote-address 10.0.1.1

 ike-profile 1

#

 ike identity fqdn CCC

#

ike profile 1

 keychain 1

 exchange-mode aggressive

 local-identity fqdn CCC

 match remote identity fqdn AAA

#

ike keychain 1

 pre-shared-key address 10.0.1.1 255.255.255.255 key cipher $c$3$QjpJY4GnAog+Zp1m5RwtToXnw2HgqxCIQQ==

#

acl advanced 3000

 rule 0 permit ip source 3.3.3.3 0 destination 1.1.1.1 0

 rule 5 permit ip source 3.3.3.3 0 destination 2.2.2.2 0

 

 

组网及组网描述:

在A上查看的sa

<AAA>dis ike sa

    Connection-ID   Local               Remote              Flag      DOI

-------------------------------------------------------------------------

    1               10.0.0.1            10.0.0.2            RD        IPsec

    2               10.0.1.1            10.0.1.2            RD        IPsec

Flags:

RD--READY RL--REPLACED FD-FADING RK-REKEY

<AAA>dis ipsec sa

-------------------------------

Interface: GigabitEthernet0/0

-------------------------------

 

  -----------------------------

  IPsec policy: 22

  Sequence number: 1

  Mode: Template

  -----------------------------

    Tunnel id: 2

    Encapsulation mode: tunnel

    Perfect Forward Secrecy:

    Inside VPN:

    Extended Sequence Numbers enable: N

    Traffic Flow Confidentiality enable: N

    Transmitting entity: Responder

    Path MTU: 1444

    Tunnel:

        local  address: 10.0.0.1

        remote address: 10.0.0.2

    Flow:

        sour addr: 3.3.3.3/255.255.255.255  port: 0  protocol: ip

        dest addr: 2.2.2.2/255.255.255.255  port: 0  protocol: ip

 

    [Inbound ESP SAs]

      SPI: 1471197854 (0x57b0b29e)

      Connection ID: 12884901891

      Transform set: ESP-ENCRYPT-3DES-CBC ESP-AUTH-MD5

      SA duration (kilobytes/sec): 1843200/3600

      SA remaining duration (kilobytes/sec): 1843200/1574

      Max received sequence-number: 0

      Anti-replay check enable: Y

      Anti-replay window size: 64

      UDP encapsulation used for NAT traversal: N

      Status: Active

 

    [Outbound ESP SAs]

      SPI: 1577153356 (0x5e01734c)

      Connection ID: 12884901890

      Transform set: ESP-ENCRYPT-3DES-CBC ESP-AUTH-MD5

      SA duration (kilobytes/sec): 1843200/3600

      SA remaining duration (kilobytes/sec): 1843200/1574

      Max sent sequence-number: 0

      UDP encapsulation used for NAT traversal: N

      Status: Active

 

  -----------------------------

  IPsec policy: 22

  Sequence number: 1

  Mode: Template

  -----------------------------

    Tunnel id: 0

    Encapsulation mode: tunnel

    Perfect Forward Secrecy:

    Inside VPN:

    Extended Sequence Numbers enable: N

    Traffic Flow Confidentiality enable: N

    Transmitting entity: Responder

    Path MTU: 1444

    Tunnel:

        local  address: 10.0.0.1

        remote address: 10.0.0.2

    Flow:

        sour addr: 1.1.1.1/255.255.255.255  port: 0  protocol: ip

        dest addr: 2.2.2.2/255.255.255.255  port: 0  protocol: ip

 

    [Inbound ESP SAs]

      SPI: 1970886898 (0x757958f2)

      Connection ID: 12884901895

      Transform set: ESP-ENCRYPT-3DES-CBC ESP-AUTH-MD5

      SA duration (kilobytes/sec): 1843200/3600

      SA remaining duration (kilobytes/sec): 1843200/1559

      Max received sequence-number: 0

      Anti-replay check enable: Y

      Anti-replay window size: 64

      UDP encapsulation used for NAT traversal: N

      Status: Active

 

    [Outbound ESP SAs]

      SPI: 2652031688 (0x9e12cac8)

      Connection ID: 12884901894

      Transform set: ESP-ENCRYPT-3DES-CBC ESP-AUTH-MD5

      SA duration (kilobytes/sec): 1843200/3600

      SA remaining duration (kilobytes/sec): 1843200/1559

      Max sent sequence-number: 0

      UDP encapsulation used for NAT traversal: N

      Status: Active

-------------------------------

Interface: GigabitEthernet0/1

-------------------------------

 

  -----------------------------

  IPsec policy: 22

  Sequence number: 2

  Mode: Template

  -----------------------------

    Tunnel id: 3

    Encapsulation mode: tunnel

    Perfect Forward Secrecy:

    Inside VPN:

    Extended Sequence Numbers enable: N

    Traffic Flow Confidentiality enable: N

    Transmitting entity: Responder

    Path MTU: 1444

    Tunnel:

        local  address: 10.0.1.1

        remote address: 10.0.1.2

    Flow:

        sour addr: 2.2.2.2/255.255.255.255  port: 0  protocol: ip

        dest addr: 3.3.3.3/255.255.255.255  port: 0  protocol: ip

 

    [Inbound ESP SAs]

      SPI: 2924452425 (0xae4f9a49)

      Connection ID: 12884901889

      Transform set: ESP-ENCRYPT-3DES-CBC ESP-AUTH-MD5

      SA duration (kilobytes/sec): 1843200/3600

      SA remaining duration (kilobytes/sec): 1843200/1565

      Max received sequence-number: 0

      Anti-replay check enable: Y

      Anti-replay window size: 64

      UDP encapsulation used for NAT traversal: N

      Status: Active

 

    [Outbound ESP SAs]

      SPI: 224059300 (0x0d5adfa4)

      Connection ID: 12884901888

      Transform set: ESP-ENCRYPT-3DES-CBC ESP-AUTH-MD5

      SA duration (kilobytes/sec): 1843200/3600

      SA remaining duration (kilobytes/sec): 1843200/1565

      Max sent sequence-number: 0

      UDP encapsulation used for NAT traversal: N

      Status: Active

 

  -----------------------------

  IPsec policy: 22

  Sequence number: 2

  Mode: Template

  -----------------------------

    Tunnel id: 1

    Encapsulation mode: tunnel

    Perfect Forward Secrecy:

    Inside VPN:

    Extended Sequence Numbers enable: N

    Traffic Flow Confidentiality enable: N

    Transmitting entity: Responder

    Path MTU: 1444

    Tunnel:

        local  address: 10.0.1.1

        remote address: 10.0.1.2

    Flow:

        sour addr: 1.1.1.1/255.255.255.255  port: 0  protocol: ip

        dest addr: 3.3.3.3/255.255.255.255  port: 0  protocol: ip

 

    [Inbound ESP SAs]

      SPI: 2618482348 (0x9c12deac)

      Connection ID: 12884901893

      Transform set: ESP-ENCRYPT-3DES-CBC ESP-AUTH-MD5

      SA duration (kilobytes/sec): 1843200/3600

      SA remaining duration (kilobytes/sec): 1843200/1552

      Max received sequence-number: 0

      Anti-replay check enable: Y

      Anti-replay window size: 64

      UDP encapsulation used for NAT traversal: N

      Status: Active

 

    [Outbound ESP SAs]

      SPI: 1224906267 (0x4902961b)

      Connection ID: 12884901892

      Transform set: ESP-ENCRYPT-3DES-CBC ESP-AUTH-MD5

      SA duration (kilobytes/sec): 1843200/3600

      SA remaining duration (kilobytes/sec): 1843200/1552

      Max sent sequence-number: 0

      UDP encapsulation used for NAT traversal: N

      Status: Active

最佳答案

已采纳
粉丝:32人 关注:11人

建议在AAA上增加如下配置:

ipsec policy-template 22 1
reverse-route dynamic

ipsec policy-template 33 1
reverse-route dynamic


并在BBB和CCC上增加如下配置(我假设你已经写了缺省路由,只是提问里没发):

ipsec policy 1 1 isakmp
sa trigger-mode auto

2 个回答
粉丝:112人 关注:0人

首先排查路由问题,看情况,个人觉得重点查一下总部有没有到分支的路由

直连的还要什么路由啊?

zhiliao_eE5Ptd 发表时间:2025-04-27 更多>>

直连的还要什么路由啊?

zhiliao_eE5Ptd 发表时间:2025-04-27

加个路由,把流量引导接口上,才能触发IPSec封装

写一个出接口是IPSec绑定的接口的路由就行,

神烦烦烦烦烦烦烦烦烦烦卍 发表时间:2025-04-27 更多>>

我路由应该怎么做

zhiliao_eE5Ptd 发表时间:2025-04-27

写一个出接口是IPSec绑定的接口的路由就行,

神烦烦烦烦烦烦烦烦烦烦卍 发表时间:2025-04-27

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