Reference Guide

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.
• To generate the default route, use the default-information originate [always] command in ROUTER-OSPFv3 mode.
Congure default route
OS10(config)# router ospfv3 100
OS10(config-router-ospf-100)# default-information originate always
View default route conguration
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 elds in its protocol header to provide security. To provide authentication and
condentiality, 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 veries 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 the protection of data 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 conguration consists
of a security policy index (SPI) and the key used to validate OSPFv3 packets. After you congure an IPsec protocol for OSPFv3, IPsec
operation is invisible to the user.
You can only enable one security protocol (authentication or encryption) at a time on an interface or for an area. Enable IPsec AH with the
ipv6 ospf authentication command; enable IPsec ESP with the ipv6 ospf encryption command.
• A security policy congured for an area is inherited by default on all interfaces in the area.
• A security policy congured on an interface overrides any area-level congured security for the area to which the interface is assigned.
Layer 3
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