Dell EMC SmartFabric OS10 User Guide Release 10.5.2

• ipsec spi number — Enter a unique security policy index number, from 256 to 4294967295.
• esp encryption-type — Enter the encryption algorithm used with ESP (3DES, DES, AES-CBC, or NULL). For AES-CBC, only the AES-128 and AES-192 ciphers are supported.
• key — Enter the text string used in the encryption algorithm.
• authentication-type — Enter the encryption MD5 or SHA1 authentication algorithm to use.
• key — Enter the text string used in the authentication algorithm.
• null — Enter the keyword to not use the IPsec encryption.

• Before you enable IPsec authentication on an OSPFv3 interface, you must enable IPv6 unicast routing globally, configure an IPv6 address and enable OSPFv3 on the interface, and assign it to an area.
• When you configure encryption on an interface, both IPsec encryption and authentication are enabled. You cannot configure encryption if you have already configured an interface for IPsec authentication using the ipv6 ospf authentication ipsec command. To configure encryption, you must first delete the authentication policy.
• All neighboring OSPFv3 routers must share the same encryption key to decrypt information. Only a non-encrypted key is supported. Required lengths of the non-encrypted key are: 3DES — 48 hex digits; DES — 16 hex digits; AES-CBC — 32 hex digits for AES-128 and 48 hex digits for AES-192.
• All neighboring OSPFv3 routers must share the same authentication key to exchange information. Only a non-encrypted key is supported. For MD5 authentication, the non-encrypted key must be 32 plain hex digits. For SHA1 authentication, the non-encrypted key must be 40 hex digits. An encrypted key is not supported.

OS10(config)# interface ethernet 1/1/6
OS10(conf-if-eth1/1/6)# ipv6 ospf encryption ipsec spi 500 esp des 1234567812345678 md5 12345678123456781234567812345678

OS10(config)# interface ethernet 1/1/5
OS10(conf-if-eth1/1/5)# ipv6 ospf encryption null