×××实验
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1．1、IPsec ×××
1.1.1、實驗描述
在配制ipsec ***時一般按照以下幾個頻驟
第一．R1發送感興流量到R2（設定感興流量即ACL）
第二．R1和R2協商IKE 第一階段（phase 1）
?? * 確定密鑰分發方式
?? * 確定驗證方式
?? * 對等方確定ISAKMP策略（加密算法、hash算法、IKE SA生存期）
第三．R1和R2協商IKE 第二階段（phase 2）
第四．通過IPsec信道交互信息
第五．在無數據發送的時候自動關團信道
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1.1.2、拓撲
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如圖所示，R1和R2為兩個路由器，它們是通過internet連一起的，（但實驗是通過串口直接連在一起），R1的loopback 0模擬R1這邊的內網，R2的loopback 0模擬R2的內網，最后實現兩邊的loopback是通過×××實現互連的
1.1.3、基本配制
R1=========================
host R1
no ip domain-lookup
line con 0
logg sy
exec-time 0 0
!
int s1/1
ip add 200.200.100.1 255.255.255.252
no sh
int loopback 0
ip add 10.1.1.1 255.255.255.0
exit
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R2=================================
host R2
no ip domain-lookup
line con 0
logg sy
exec-time 0 0
!
int s1/0
ip add 200.200.100.2 255.255.255.252
cl ra 56000
no sh
int loopback 0
ip add 10.2.2.1 255.255.255.0
exit
!
1.1.4、×××配制
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R1=================================================
access-list 101 permit ip host 10.1.1.1 host 10.2.2.1
crypto isakmp policy 1
? authentication pre-share
? hash md5
exit
!
crypto isakmp key 0 cisco address 200.200.100.2 255.255.255.0
!????
crypto ipsec transform-set shanghai esp-des esp-md5-hmac
!
crypto map ***_to_shanghai 10 ipsec-isakmp
? match add 101
? set peer 200.200.100.2
? set transform shanghai
!
ip route 10.2.2.0 255.255.255.0 200.200.100.2
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int s1/1
crypto map ***_to_shanghai
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R2 ================================================
access-list 101 permit ip host 10.2.2.1 host 10.1.1.1
crypto isakmp policy 1
? authentication pre-share
? hash md5
? exit
!
crypto isakmp key 0 cisco address 200.200.100.1 255.255.255.0
!
crypto ipsec transform-set shanghai esp-des esp-md5-hmac
!
crypto map ***_to_shanghai 10 ipsec-isakmp
? match add 101
? set peer 200.200.100.1
? set transform shanghai
!
ip route 10.1.1.0 255.255.255.0 200.200.100.1
!
int s1/0
crypto map ***_to_shanghai
!
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1.1.5、校驗
在R1上擴展ping?? 10.2.2.1
R1#ping
Protocol [ip]:
Target IP address: 10.2.2.1
Repeat count [5]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Source address or interface: loo 0
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.2.2.1, timeout is 2 seconds:
Packet sent with a source address of 10.1.1.1
..!!!
Success rate is 60 percent (3/5), round-trip min/avg/max = 172/238/288 ms
R1#show crypto map
Crypto Map "***_to_shanghai" 10 ipsec-isakmp
??????? Peer = 200.200.100.2
??????? Extended IP access list 101
??????????? access-list 101 permit ip host 10.1.1.1 host 10.2.2.1
??????? Current peer: 200.200.100.2
??????? Security association lifetime: 4608000 kilobytes/3600 seconds
??????? PFS (Y/N): N
??????? Transform sets={
??????????????? shanghai,
??????? }
??????? Interfaces using crypto map ***_to_shanghai:
??????????????? Serial1/1
R1#show crypto ipsec sa
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interface: Serial1/1
??? Crypto map tag: ***_to_shanghai, local addr 200.200.100.1
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?? protected vrf: (none)
?? local? ident (addr/mask/prot/port): (10.1.1.1/255.255.255.255/0/0)
?? remote ident (addr/mask/prot/port): (10.2.2.1/255.255.255.255/0/0)
?? current_peer 200.200.100.2 port 500
???? PERMIT, flags={origin_is_acl,}
??? #pkts encaps: 3, #pkts encrypt: 3, #pkts digest: 3
??? #pkts decaps: 3, #pkts decrypt: 3, #pkts verify: 3
??? #pkts compressed: 0, #pkts decompressed: 0
??? #pkts not compressed: 0, #pkts compr. failed: 0
??? #pkts not decompressed: 0, #pkts decompress failed: 0
??? #send errors 2, #recv errors 0
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???? local crypto endpt.: 200.200.100.1, remote crypto endpt.: 200.200.100.2
???? path mtu 1500, ip mtu 1500
???? current outbound spi: 0xC57F1ABD(3313441469)
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???? inbound esp sas:
????? spi: 0x9C8542B5(2625979061)
??????? transform: esp-des esp-md5-hmac ,
??????? in use settings ={Tunnel, }
??????? conn id: 2001, flow_id: SW:1, crypto map: ***_to_shanghai
??????? sa timing: remaining key lifetime (k/sec): (4416419/3493)
??????? IV size: 8 bytes
??????? replay detection support: Y
??????? Status: ACTIVE
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???? inbound ah sas:
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???? inbound pcp sas:
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???? outbound esp sas:
????? spi: 0xC57F1ABD(3313441469)
??????? transform: esp-des esp-md5-hmac ,
??????? in use settings ={Tunnel, }
??????? conn id: 2002, flow_id: SW:2, crypto map: ***_to_shanghai
??????? sa timing: remaining key lifetime (k/sec): (4416419/3492)
??????? IV size: 8 bytes
??????? replay detection support: Y
??????? Status: ACTIVE
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???? outbound ah sas:
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???? outbound pcp sas:
R1#show crypto isakmp sa
dst???????????? src???????????? state??????? ??conn-id ?????slot ????status
200.200.100.2?? 200.200.100.1?? QM_IDLE????????????? 1??? 0 ?????ACTIVE
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轉載于:https://blog.51cto.com/haolun/993027
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