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路由器-IPSec-Over-GRE典型配置【需求】分部1和分部2通过野蛮IPSec的方式连接到中心,采用IPSec-Over-GRE的方式,在tunnel上运行OSPF协议来实现总部和分部之间的互通。【组网图】

【配置脚本】中心配置脚本#sysname#ikelocal-namecenter

/中心ike的local-name为:center/#routerid1.1.1.1#radiusschemesystem#domainsystem#ikepeerbranch1

/配置到分部1的ikepeer/exchange-modeaggressive

/设置IPSec为野蛮方式/pre-shared-keyabc

/预共享密钥为abc/id-typename

/选择名字作为ike协商过程中使用的ID/remote-namebranch1

/分部1的名字为branch1/#ikepeerbranch2

/配置到分部2的ikepeer/exchange-modeaggressivepre-shared-keyabcid-typenameremote-namebranch2#ipsecproposal1

/定义ipsecproposal/#ipsecpolicycenter10isakmp

/配置到分部1的ipsecpolicy/securityacl3001

/指定安全策略所引用的访问控制列表号/ike-peerbranch1

/引用ikepeer/proposal1

/引用ipsecproposal/#ipsecpolicycenter20isakmp

/到分部2的配置和分部1的配置类似/securityacl3002ike-peerbranch2proposal1#aclnumber3001

/定义从中心到分部1的内网数据流/rule0permitipsource192.168.1.00.0.0.255destination192.168.2.00.0.0.255aclnumber3002

/定义从中心到分部2的内网数据流/rule0permitipsource192.168.1.00.0.0.255destination192.168.2.00.0.0.255#interfaceSerial2/0link-protocolpppipaddress202.101.1.2255.255.255.252#interfaceTunnel0

/配置中心和分部1之间的GREtunnel/ipaddress10.0.0.1255.255.255.252source202.101.1.2destination202.101.2.2ipsecpolicybranch1

/在tunnel0上应用IPSecpolicybranch1/#interfaceTunnel1

/配置中心和分部2之间的GREtunnel/ipaddress10.0.0.5255.255.255.252source202.101.1.2destination202.101.3.2ipsecpolicybranch2

/在tunnel1上应用IPSecpolicybranch2/#interfaceNULL0#interfaceLoopBack0ipaddress1.1.1.1255.255.255.255#interfaceEthernet0/0ipaddress192.168.1.1255.255.255.0

/中心的内网地址/#ospf1area0.0.0.10

/分部1属于area10/network10.0.0.00.0.0.3#area0.0.0.20

/分部2属于area20/network10.0.0.40.0.0.3#area0.0.0.0

/总部属于area0/network1.1.1.10.0.0.0network192.168.1.00.0.0.255#iproute-static0.0.0.00.0.0.0202.101.1.1preference60#user-interfacecon0user-interfacevty04#return分部1配置脚本===============================Interface:Tunnel0

pathMTU:64000===============================

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

IPsecpolicyname:"branch1"

sequencenumber:10

mode:isakmp

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

connectionid:8

encapsulationmode:tunnel

perfectforwardsecrecy:None

tunnel:

local

address:10.0.0.1

remoteaddress:10.0.0.2

flow:

(4timesmatched)

souraddr:192.168.1.0/255.255.255.0

port:0

protocol:IP

destaddr:192.168.2.0/255.255.255.0

port:0

protocol:IP

[inboundESPSAs]

spi:2701983530(0xa10cff2a)

proposal:ESP-ENCRYPT-DESESP-AUTH-MD5

saremainingkeyduration(bytes/sec):1887436664/2136

maxreceivedsequence-number:2

udpencapsulationusedfornattraversal:N

[outboundESPSAs]

spi:2132567950(0x7f1c678e)

proposal:ESP-ENCRYPT-DESESP-AUTH-MD5

saremainingkeyduration(bytes/sec):1887436632/2136

maxsentsequence-number:3

udpencapsulationusedfornattraversal:N===============================Interface:Tunnel1

pathMTU:64000===============================

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

IPsecpolicyname:"branch2"

sequencenumber:10

mode:isakmp

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

connectionid:9

encapsulationmode:tunnel

perfectforwardsecrecy:None

tunnel:

local

address:10.0.0.5

remoteaddress:10.0.0.6

flow:

(18timesmatched)

souraddr:192.168.1.0/255.255.255.0

port:0

protocol:IP

destaddr:192.168.3.0/255.255.255.0

port:0

protocol:IP

[inboundESPSAs]

spi:1612204948(0x60184b94)

proposal:ESP-ENCRYPT-DESESP-AUTH-MD5

saremainingkeyduration(bytes/sec):1887436188/2886

maxreceivedsequence-number:9

udpencapsulationusedfornattraversal:N

[outboundESPSAs]

spi:3432409622(0xcc966a16)

proposal:ESP-ENCRYPT-DESESP-AUTH-MD5

saremainingkeyduration(bytes/sec):1887436044/2886

maxsentsequence-number:10

udpencapsulationusedfornattraversal:N

3、中心路由表dispiprout

RoutingTable:publicnetDestination/Mask

ProtocolPre

Cost

Nexthop

Interface0.0.0.0/0

STATIC

60

0

202.101.1.1

Serial2/0/01.1.1.1/32

DIRECT

0

0

127.0.0.1

InLoopBack02.2.2.2/32

OSPF

10

1563

10.0.0.2

Tunnel03.3.3.3/32

OSPF

10

1563

10.0.0.6

Tunnel110.0.0.0/30

DIRECT

0

0

10.0.0.1

Tunnel010.0.0.1/32

DIRECT

0

0

127.0.0.1

InLoopBack010.0.0.4/30

DIRECT

0

0

10.0.0.5

Tunnel110.0.0.5/32

DIRECT

0

0

127.0.0.1

InLoopBack0127.0.0.0/8

DIRECT

0

0

127.0.0.1

InLoopBack0127.0.0.1/32

DIRECT

0

0

127.0.0.1

InLoopBack0192.168.1.0/24

DIRECT

0

0

192.168.1.1

LoopBack10192.168.1.1/32

DIRECT

0

0

127.0.0.1

InLoopBack0192.168.2.0/24

OSPF

10

1563

10.0.0.2

Tunnel0192.168.3.0/24

OSPF

10

1563

10.0.0.6

Tunnel1202.101.1.0/30

DIRECT

0

0

202.101.1.2

Serial2/0/0202.101.1.1/32

DIRECT

0

0

202.101.1.1

Serial2/0/0202.101.1.2/32

DIRECT

0

0

127.0.0.1

InLoopBack0

4、分部1的ikesa状态:dispikesa

connection-id

peer

flag

phase

doi

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

27

10.0.0.1

RD|ST

1

IPSEC

28

10.0.0.1

RD|ST

2

IPSEC

flagmeaning

RD--READYST--STAYALIVERL--REPLACEDFD--FADINGTO—TIMEOUT

5、分部1的ipsecsa状态:dispipsecsa===============================Interface:Tunnel0

pathMTU:64000===============================

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

IPsecpolicyname:"branch1"

sequencenumber:10

mode:isakmp

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

connectionid:6

encapsulationmode:tunnel

perfectforwardsecrecy:None

tunnel:

local

address:10.0.0.2

remoteaddress:10.0.0.1

flow:

(4timesmatched)

souraddr:192.168.2.0/255.255.255.0

port:0

protocol:IP

destaddr:192.168.1.0/255.255.255.0

port:0

protocol:IP

[inboundESPSAs]

spi:2132567950(0x7f1c678e)

proposal:ESP-ENCRYPT-DESESP-AUTH-MD5

saremainingkeyduration(bytes/sec):1887436664/2054

maxreceivedsequence-number:2

udpencapsulationusedfornattraversal:N

[outboundESPSAs]

spi:2701983530(0xa10cff2a)

proposal:ESP-ENCRYPT-DESESP-AUTH-MD5

saremainingkeyduration(bytes/sec):1887436632/2054

maxsentsequence-number:3

udpencapsulationusedfornattraversal:N

6、分部1的路由表:dispiprout

RoutingTable:publicnetDestination/Mask

ProtocolPre

Cost

Nexthop

Interface0.0.0.0/0

STATIC

60

0

202.101.2.1

Serial2/0/01.1.1.1/32

OSPF

10

1563

10.0.0.1

Tunnel02.2.2.2/32

DIRECT

0

0

127.0.0.1

InLoopBack03.3.3.3/32

OSPF

10

3125

10.0.0.1

Tunnel010.0.0.0/30

DIRECT

0

0

10.0.0.2

Tunnel010.0.0.2/32

DIRECT

0

0

127.0.0.1

InLoopBack010.0.0.4/30

OSPF

10

3124

10.0.0.1

Tunnel0127.0.0.0/8

DIRECT

0

0

127.0.0.1

InLoopBack0127.0.0.1/32

DIRECT

0

0

127.0.0.1

InLoopBack0192.168.1.0/24

OSPF

10

1563

10.0.0.1

Tunnel0192.168.2.0/24

DIRECT

0

0

192.168.2.1

LoopBack10192.168.2.1/32

DIRECT

0

0

127.0.0.1

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