Which IPv6 multicast addresses are used by OSPFv3?
OSPFv3 takes advantage of IPv6 multicasting, using FF02::5 for all OSPF routers and FF02::6 for the OSPF DR and BDR.
What two multicast addresses does OSPFv3?
What two multicast addresses does OSPFv3 use? Explanation: Adjacencies and next-hop attributes now use link-local addresses, and OSPFv3 still uses multicast traffic to send its updates and acknowledgments with the addresses FF02::5 for OSPF routers and FF02::6 for OSPF designated routers.
What is the IPv6 address ff02 :: 2 used for?
Well-known IPv6 multicast addresses
| ff02::1 | all nodes |
|---|---|
| ff02::1a | all RPL (Routing Protocol for Low-Power and Lossy Networks) routers (used in Internet of Things (IoT) devices) |
| ff02::fb | multicast DNS IPv6 |
| ff02::101 | network time (NTP) |
| ff02::1:2 | all DHCP agents |
Which is a difference between OSPFv2 and OSPFv3?
OSPFv2 stands for Open Shortest Path First version 2 and OSPFv3 stands for Open Shortest Path First version 3. OSPFv2 is the IPv4’s OSPF version, whereas OSPFv3 is the IPv6’s OSPF version. In OSPFv2, many OSPF instances per interface are not supported, whereas in OSPFv3, many OSPF instances per interface are supported.
What OSPFv3 can do and how?
OSPFv3 allows for multiple instances per link by adding an Instance ID to the OSPF packet header to distinguish instances. An interface assigned to a given Instance ID will drop OSPF packets whose Instance ID does not match.
What is an IPv6 multicast address?
An IPv6 multicast address defines a group of devices known as a multicast group. IPv6 multicast addresses use the prefix ff00::/8, shown in Table 4-10, which is equivalent to the IPv4 multicast address 224.0. A multicast address can never be the source address. Unlike IPv4, there is no broadcast address in IPv6.
What does FF02 mean in IPv6?
multicast
That can be confusing, so let’s explore that a bit. Let’s take the IPv6 multicast address default: FF02::1:FFxx:xxxx. At the beginning is “FF02”. In IPv6, “FF” represents “multicast”. The next two digits are “02”.
What are the features of OSPFv3?
OSPFv3 Features
- Basic OPSFv3.
- OSPFv3 interface.
- Passive interface.
- Redistribution and its attributes.
- OSPFv4 area parameters.
- Virtual link.
- External database limit.
- Demand extension.