274
[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
remote address: 2.2.3.1
Flow:
as defined in ACL 3101
[Inbound ESP SA]
SPI: 54321 (0x0000d431)
Transform set: ESP-ENCRYPT-AES-CBC-192 ESP-AUTH-SHA1
No duration limit for this SA
[Outbound ESP SA]
SPI: 12345 (0x00003039)
Transform set: ESP-ENCRYPT-AES-CBC-192 ESP-AUTH-SHA1
No duration limit for this SA
Configuring an IKE-based IPsec tunnel for IPv4 packets
Network requirements
As shown in Figure 82, establish an IPsec tunnel between Switch A and Switch B to protect data flows
between the switches. Configure the IPsec tunnel as follows:
• Specify the encapsulation mode as tunnel, the security protocol as ESP, the encryption algorithm as
AES-CBC-192, and the authentication algorithm as HMAC-SHA1.
• Set up SAs through IKE negotiation.
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