Dell PowerSwitch S4128F-ON OS10 Enterprise Edition User Guide Release 10.4.3.0 - Page 571

Change OSPFv3 Interface Parameters OS10(config)# interface ethernet 1/1/1 OS10(conf-if-eth1/1/1)# ipv6 ospf hello-interval 5 OS10(conf-if-eth1/1/1)# ipv6 ospf dead-interval 20 OS10(conf-if-eth1/1/1)# ipv6 ospf priority 4 View OSPFv3 Interface Parameters OS10# show ipv6 ospf interface ethernet1/1/1 is up, line protocol is up Link Local Address fe80::20c:29ff:fe0a:d59/64, Interface ID 5 Area 0.0.0.0, Process ID 200, Instance ID 0, Router ID 10.0.0.2 Network Type broadcast, Cost: 1 Transmit Delay is 1 sec, State BDR, Priority 1 Designated Router on this network is 2.2.2.2 Backup Designated router on this network is 10.0.0.2 (local) Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 Neighbor Count is 1, Adjacent neighbor count is 1 Adjacent with neighbor 2.2.2.2(Designated Router) Default route You can generate an external default route and distribute the default information to the OSPFv3 routing domain. • Generate the default route, using the default-information originate [always] command in ROUTER-OSPFv3 mode. Configure default route OS10(config)# router ospfv3 100 OS10(config-router-ospf-100)# default-information originate always View default route configuration OS10(config-router-ospf-100)# show configuration ! router ospfv3 100 default-information originate always OSPFv3 IPsec authentication and encryption Unlike OSPFv2, OSPFv3 does not have authentication fields in its protocol header to provide security. To provide authentication and confidentiality, OSPFv3 uses IP Security (IPsec) - a collection of security protocols for authenticating and encrypting data packets. OS10 OSPFv3 supports IPsec using the IPv6 authentication header (AH) or IPv6 encapsulating security payload (ESP). • AH authentication verifies that data is not altered during transmission and ensures that users are communicating with the intended individual or organization. The authentication header is inserted after the IP header with a value of 51. MD5 and SHA1 authentication types are supported; encrypted and unencrypted keys are supported. • ESP encryption encapsulates data, enabling data protection that follows in the datagram. The ESP extension header is inserted after the IP header and before the next layer protocol header. 3DES, DES, AES-CBC, and NULL encryption algorithms are supported; encrypted and unencrypted keys are supported. Apply IPsec authentication or encryption on a physical, port-channel, or VLAN interface or in an OSPFv3 area. Each configuration consists of a security policy index (SPI) and the OSPFv3 packets validation key. After you configure an IPsec protocol for OSPFv3, IPsec operation is invisible to the user. You can only enable one authentication or encryption security protocol at a time on an interface or for an area. Enable IPsec AH using the ipv6 ospf authentication command; enable IPsec ESP with the ipv6 ospf encryption command. • A security policy configured for an area is inherited on all interfaces in the area by default. • A security policy configured on an interface overrides any area-level configured security for the area where the interface is assigned. • The configured authentication or encryption policy applies to all OSPFv3 packets transmitted on the interface or in the area. The IPsec security associations are the same on inbound and outbound traffic on an OSPFv3 interface. Layer 3 571