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H3C to Cisco IPsec configuration(Main mode)

2020-12-25 Published

Network Topology


AS

Configuration Steps

H3C:

#

dhcp server ip-pool lan1

 gateway-list 192.168.100.1

 network 192.168.100.0 mask 255.255.255.0

 address range 192.168.100.50 192.168.100.254

 dns-list 8.8.8.8

#

interface Vlan-interface1

 ip address 192.168.100.1 255.255.255.0

#

interface GigabitEthernet0/0

 port link-mode route

 description Single_Line1

 ip address 168.168.168.1 255.255.255.252

 packet-filter name GigabitEthernet0/0 inbound

 nat outbound 3005

 ipsec apply policy map1

#

#

line vty 0 63 

 authentication-mode scheme

 user-role network-operator

#

 ip route-static 192.168.200.0 24 168.168.168.2

#

acl advanced 3005

 rule 0 deny ip source 192.168.100.0 0.0.0.255 destination 192.168.200.0 0.0.0.255 ////Use NAT to reject ipsec interested flow

#

acl advanced 3101

 rule 0 permit ip source 192.168.100.0 0.0.0.255 destination 192.168.200.0 0.0.0.255//IPSEC interested flow

#

#

domain system

#

ipsec transform-set tran1

 esp encryption-algorithm 3des-cbc  

 esp authentication-algorithm md5   

#

ipsec policy map1 10 isakmp

 transform-set tran1

 security acl 3101  

 Local-address 168.168.168.1

 remote-address 168.168.168.2

 ike-profile profile1

#

ike profile profile1

 keychain keychain1

 local-identity address 168.168.168.1

 match remote identity address 168.168.168.2 255.255.255.252

 proposal 1  

#

ike proposal 1

 encryption-algorithm 3des-cbc 

 authentication-algorithm md5  

 sa duration 3600 

#

ike keychain keychain1

 pre-shared-key address 168.168.168.2 255.255.255.252 key simple 12345678

#


CISCO:


ip dhcp pool LAN

   network 192.168.200.0 255.255.255.0

   default-router 192.168.200.1 //dhcp 网关

   dns-server 8.8.8.8

!

!

!

crypto isakmp policy 20

 encr 3des

 hash md5 

 authentication pre-share

 lifetime 3600

crypto isakmp key cisco123 address 168.168.168.1

!

!

crypto ipsec transform-set mysetto esp-3des esp-md5-hmac 

!

crypto map mymap 20 ipsec-isakmp

 set peer 168.168.168.1

 set transform-set mysetto

 match address 100 

!

!

!

interface FastEthernet0/0

 ip address 168.168.168.2 255.255.255.252

 duplex auto

 speed auto

 crypto map mymap

!

interface FastEthernet0/1

 ip address 192.168.200.1 255.255.255.0

 duplex auto

 speed auto

!        

ip classless

ip route 192.168.100.0 255.255.255.0 168.168.168.1

!

access-list 100 permit ip 192.168.200.0 0.0.0.255 192.168.100.0 0.0.0.255 //acl 

!

!

Key Configuration

1.The encryption and authentication algorithms configured on both sides must be consistent

2.ACL source and destination address is the subnet address