282
# 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
# 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 interface VLAN-interface 1.
[SwitchB] interface vlan-interface 1
[SwitchB-Vlan-interface1] ipsec apply policy use1
Verifying the configuration
After the configuration is completed, an IPsec tunnel between Switch A and Switch B is established,
and the traffic between the switches is IPsec protected. This example uses Switch A to verify the
configuration.
# Use the display ipsec sa command to display IPsec SAs on Switch A.
[SwitchA] display ipsec sa
-------------------------------
Interface: Vlan-interface 1
-------------------------------
-----------------------------
IPsec policy: map1
Sequence number: 10
Mode: manual
-----------------------------
Tunnel id: 549
Encapsulation mode: tunnel
Path MTU: 1443
Tunnel:
local address: 2.2.2.1
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