Connectivity Guide

– authentication-type key — Enter the encryption authentication MD5 or SHA1 algorithm to use.
– key — Enter the text string used in the authentication algorithm. All neighboring OSPFv3 routers must share the 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.
To delete an IPsec encryption policy, use the no ipv6 ospf encryption ipsec spi number or no ipv6 ospf encryption
null command.
Congure IPsec encryption on interface
OS10(conf-if-eth1/1/1)# ipv6 ospf encryption ipsec spi 500 esp des 1234567812345678 md5
12345678123456781234567812345678
OS10(conf-if-eth1/1/1)# show configuration
!
interface ethernet1/1/1
ipv6 ospf encryption ipsec spi 500 esp des 1234567812345678 md5 12345678123456781234567812345678
no switchport
no shutdown
ipv6 address 1::1/64
Congure IPsec authentication for OSPFv3 area
Prerequisite: Before you enable IPsec authentication for an OSPFv3 area, enable OSPFv3 globally on the router.
• Enable IPsec authentication for OSPFv3 packets in an area in Router-OSPFv3 mode.
area area-id authentication ipsec spi number {MD5 | SHA1} key
– area area-id — Enter an area ID as a number or IPv6 prex.
– ipsec spi number — Enter a unique security policy index (SPI) value, from 256 to 4294967295.
– md5 — Enable message digest 5 (MD5) authentication.
– sha1 — Enable secure hash algorithm 1 (SHA1) authentication.
– key — Enter the text string used in the authentication type. All OSPFv3 routers in the area share the 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.
To delete an IPsec area authentication policy, use the no area area-id authentication ipsec spi number command.
Congure IPsec authentication for an OSPfv3 area
OS10(config-router-ospfv3-100)# area 1 authentication ipsec spi 400 md5
12345678123456781234567812345678
OS10(config-router-ospfv3-100)# show configuration
!
router ospfv3 100
area 0.0.0.1 authentication ipsec spi 400 md5 12345678123456781234567812345678
IPsec encryption for OSPV3 area
Prerequisite: Before you enable IPsec encryption for an OSPFv3 area, rst enable OSPFv3 globally on the router.
When you congure encryption at the area level, both IPsec encryption and authentication are enabled. You cannot congure encryption if
you have already congured an IPsec area authentication using the area ospf authentication ipsec command. To congure
encryption, you must rst delete the authentication policy.
• Enable IPsec encryption for OSPFv3 packets in an area in Router-OSPFv3 mode.
area area-id encryption ipsec spi number esp encryption-type key
authentication-type key
– area area-id — Enter an area ID as a number or IPv6 prex.
– ipsec spi number — Enter a unique security policy index (SPI) value, 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.
Layer 3
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