H3C Technologies H3C S12500-X Series Switches - Manual (Page 158)

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[SwitchA-Vlan-interface1] ipsec apply policy map1
2. Configure Switch B:
# Configure an IP address for VLAN-interface 1.
system-view
[SwitchB] interface vlan-interface 1
[SwitchB-Vlan-interface1] ip address 2.2.3.1 255.255.255.0
[SwitchB-Vlan-interface1] quit
# Define an ACL to identify data flows between Switch B and Switch A.
[SwitchB] acl number 3101
[SwitchB-acl-adv-3101] rule 0 permit ip source 2.2.3.1 0 destination 2.2.2.1 0
[SwitchB-acl-adv-3101] quit
# Create an IPsec transform set named tran1.
[SwitchB] ipsec transform-set tran1
# Specify the encapsulation mode as tunnel.
[SwitchB-ipsec-transform-set-tran1] encapsulation-mode tunnel
# Specify the security protocol as ESP.
[SwitchB-ipsec-transform-set-tran1] protocol esp
# Specify the ESP encryption and authentication algorithms.
[SwitchB-ipsec-transform-set-tran1] esp encryption-algorithm aes-cbc-192
[SwitchB-ipsec-transform-set-tran1] esp authentication-algorithm sha1
[SwitchB-ipsec-transform-set-tran1] quit
# Create a manual IPsec policy entry, with the policy name use1 and sequence number 10.
[SwitchB] ipsec policy use1 10 manual
# Apply ACL 3101.
[SwitchB-ipsec-policy-manual-use1-10] security acl 3101
# Apply IPsec transform set tran1.
[SwitchB-ipsec-policy-manual-use1-10] transform-set tran1
# Specify the remote IP address of the IPsec tunnel as 2.2.2.1.
[SwitchB-ipsec-policy-manual-use1-10] remote-address 2.2.2.1
# Configure the inbound and outbound SPIs for ESP.
[SwitchB-ipsec-policy-manual-use1-10] sa spi outbound esp 54321
[SwitchB-ipsec-policy-manual-use1-10] sa spi inbound esp 12345
# Configure the inbound and outbound SA keys for ESP.
[SwitchB-ipsec-policy-manual-use1-10] sa string-key outbound esp simple gfedcba
[SwitchB-ipsec-policy-manual-use1-10] sa string-key inbound esp simple abcdefg
[SwitchB-ipsec-policy-manual-use1-10] quit
# Apply the IPsec policy use1 to VLAN-interface 1.
[SwitchB] interface vlan-interface 1
[SwitchB-Vlan-interface1] ipsec apply policy use1
473B
Verifying the configuration
After the previous configurations, an IPsec tunnel between Switch A and Switch B is established, and the
traffic between the switches is IPsec protected.
Use the display ipsec sa command to display IPsec SAs on Switch A and Switch B. The following example
uses Switch A for illustration.