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Ipsec configuration examples, Network requirements, Configuration procedure – H3C Technologies H3C S6300 Series Switches User Manual

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Task Command

Clear IPsec statistics.

reset ipsec statistics [ tunnel-id tunnel-id ]

IPsec configuration examples

Configuring a manual mode IPsec tunnel for IPv4 packets

Network requirements

As shown in

Figure 77

, establish an IPsec tunnel between Switch A and Switch B to protect data flows

between the switches. Configure the 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.

Manually set up IPsec SAs.

Figure 77 Network diagram

Configuration procedure

1.

Configure Switch A:
# Configure an IP address for VLAN-interface 1.

system-view

[SwitchA] interface vlan-interface 1

[SwitchA-Vlan-interface1] ip address 2.2.2.1 255.255.255.0

[SwitchA-Vlan-interface1] quit

# Define an ACL to identify data flows from Switch A to Switch B.

[SwitchA] acl number 3101

[SwitchA-acl-adv-3101] rule 0 permit ip source 2.2.2.1 0 destination 2.2.3.1 0

[SwitchA-acl-adv-3101] quit

# Create an IPsec transform set named tran1.

[SwitchA] ipsec transform-set tran1

# Specify the encapsulation mode as tunnel.

[SwitchA-ipsec-transform-set-tran1] encapsulation-mode tunnel

# Specify the security protocol as ESP.

[SwitchA-ipsec-transform-set-tran1] protocol esp

# Specify the ESP encryption and authentication algorithms.

[SwitchA-ipsec-transform-set-tran1] esp encryption-algorithm aes-cbc-192

[SwitchA-ipsec-transform-set-tran1] esp authentication-algorithm sha1

[SwitchA-ipsec-transform-set-tran1] quit

# Create a manual IPsec policy entry, with the policy name map1 and sequence number 10.

[SwitchA] ipsec policy map1 10 manual