Dell Force10 C150 FTOS Configuration Guide FTOS 8.4.2.7 E-Series TeraScale, C- - Page 737

Configuring IPsec Encryption on an Interface Prerequisite: Before you enable IPsec encryption on an OSPFv3 interface, you must first enable IPv6 unicast routing globally, configure an IPv6 address and enable OSPFv3 on the interface, and assign it to an area (see Configuration Task List for OSPFv3 (OSPF for IPv6) on page 726). To configure IPsec encryption on an interface, enter the following command Command Syntax ipv6 ospf encryption {null | ipsec spi number esp encryption-algorithm [key-encryption-type] key authentication-algorithm [key-authentication-type] key } Command Mode INTERFACE Usage Enable IPsec encryption for OSPFv3 packets on an IPv6-based interface, where: null causes an encryption policy configured for the area to not be inherited on the interface. ipsec spi number is the Security Policy index (SPI) value. Range: 256 to 4294967295. esp encryption-algorithm specifies the 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 specifies the text string used in the encryption. All neighboring OSPFv3 routers must share the same key to decrypt information. Required lengths of a non-encrypted or encrypted key are: 3DES - 48 or 96 hex digits; DES - 16 or 32 hex digits; AES-CBC - 32 or 64 hex digits for AES-128 and 48 or 96 hex digits for AES-192. key-encryption-type (optional) specifies if the key is encrypted. Valid values: 0 (key is not encrypted) or 7 (key is encrypted). authentication-algorithm specifies the encryption authentication algorithm to use. Valid values are MD5 or SHA1. key specifies the text string used in used in authentication. All neighboring OSPFv3 routers must share the same key to exchange information. For MD5 authentication, the key must be 32 hex digits (non-encrypted) or 64 hex digits (encrypted). For SHA-1 authentication, the key must be 40 hex digits (non-encrypted) or 80 hex digits (encrypted). key-authentication-type (optional) specifies if the authentication key is encrypted. Valid values: 0 or 7. Note that when you configure encryption with the ipv6 ospf encryption ipsec command, you enable both IPsec encryption and authentication. However, when you enable authentication on an interface with the ipv6 ospf authentication ipsec command, you do not enable encryption at the same time. An SPI value must be unique to one IPsec security policy (authentication or encryption) on the router. You must configure the same authentication policy (same SPI and key) on each OSPFv3 interface in a link. Open Shortest Path First (OSPFv2 and OSPFv3) | 737