321
# Configure inbound and outbound SPIs for ESP.
[SwitchA-ipsec-policy-manual-map1-10] sa spi outbound esp 12345
[SwitchA-ipsec-policy-manual-map1-10] sa spi inbound esp 54321
# Configure the inbound and outbound SA keys for ESP.
[SwitchA-ipsec-policy-manual-map1-10] sa string-key outbound esp simple abcdefg
[SwitchA-ipsec-policy-manual-map1-10] sa string-key inbound esp simple gfedcba
[SwitchA-ipsec-policy-manual-map1-10] quit
# Apply IPsec policy map1 to VLAN-interface 1.
[SwitchA] interface vlan-interface 1
[SwitchA-Vlan-interface1] ipsec apply policy map1
2. Configure Switch B:
# Configure an IP address for VLAN-interface 1.
<SwitchB> system-view
[SwitchB] interface vlan-interface 1
[SwitchB-Vlan-interface1] ip address 2.2.3.1 255.255.255.0
[SwitchB-Vlan-interface1] quit
# Configure an IPv4 advanced ACL to identify the data flows between Switch B and Switch A.
[SwitchB] acl advanced 3101
[SwitchB-acl-ipv4-adv-3101] rule 0 permit ip source 2.2.3.1 0 destination 2.2.2.1 0
[SwitchB-acl-ipv4-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. Specify the policy name as use1 and set the sequence
number to 10.
[SwitchB] ipsec policy use1 10 manual
# Specify ACL 3101.
[SwitchB-ipsec-policy-manual-use1-10] security acl 3101
# Specify 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 IPsec policy use1 to VLAN-interface 1.
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