Reference Guide

Parameters seconds — Enter the dead interval value in seconds (1 to 65535).
Default 40 seconds
Command Mode INTERFACE
Usage
Information
The dead interval is four times the default hello-interval by default. The no version of this command
removes the IPv6 OSPF dead-interval configuration.
Example
OS10(config)# interface vlan 10
OS10(conf-if-vl-10)# ipv6 ospf dead-interval 10
Supported
Releases
10.3.0E or later
ipv6 ospf encryption
Configures OSPFv3 encryption on an IPv6 interface.
Syntax
ipv6 ospf encryption {ipsec spi number esp encryption-type key
authentication-type key | null}
Parameters
● ipsec spi number — Enter a unique security policy index number (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 authentication algorithm to use (MD5 or SHA1).
● key — Enter the text string used in the authentication algorithm.
● null — Enter the keyword to not use the IPsec encryption.
Default IPv6 OSPF encryption is not configured on an interface.
Command Mode INTERFACE
Usage
Information
● 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
(ipv6 ospf authentication ipsec). 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 SHA-1 authentication, the non-encrypted key must be 40 hex digits. An encrypted key
is not supported.
Example
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
Supported
Releases
10.4.0E(R1) or later
Layer 3 427