Dell C9000 series, Reference Manual

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If you have enabled IPsec encryption in an OSPFv3 area with the
area encryption
command, you cannot use the
area authentication
command in the area at the
same time.
The configuration of IPsec authentication on an interface-level takes precedence over
an area-level configuration. If you remove an interface configuration, an area
authentication policy that has been configured is applied to the interface.
To remove an IPsec authentication policy from an OSPFv3 area, enter the
no area
area-id authentication spi number
command.
Related
Commands
ipv6 ospf authentication – configures an IPsec authentication policy on an OSPFv3
interface.
show crypto ipsec policy – displays the configuration of IPsec authentication policies.
area encryption
Configure an IPsec encryption policy for OSPFv3 packets in an OSPFv3 area.
C9000 Series
Syntax
area area-id encryption ipsec spi number esp encryption-algorithm
[key-encryption-type] key authentication-algorithm [key-
encryption-type] key
Parameters
area area-id
Area for which OSPFv3 traffic is to be encrypted. For area-id ,
enter a number.
The range is from 0 to 4294967295.
ipsec spi number
Security Policy index (SPI) value that identifies an IPsec security
policy.
The range is from 256 to 4294967295.
esp encryption-
algorithm
Encryption algorithm used with ESP.
Valid values are: 3DES, DES, AES-CBC, and NULL.
For AES-CBC, only the AES-128 and AES-192 ciphers are
supported.
key-encryption-
algorithm
(OPTIONAL) Specifies if the key is encrypted.
Open Shortest Path First (OSPFv2 and OSPFv3) 1568