Ipv6 (Internet Protocol Version 6): Ipv6 Routing Protocols, Migrating To Ipv6, References
11. IPv6 Routing Protocols
IPv6 routing protocols are almost the same as IPv4 except for few changes.
1. RIPng
RIPv2 is termed as RIPng (next generation) in IPv6. It is same as the RIP v2 protocol , i.e, a distance vector protocol, has a max hop count of 15 and uses split horizon , poison reverse and other loop avoidance mechanisms but the main difference is that it uses UDP port 521.
Another difference is that with RIPng, the router keeps track of next-hop address using link-local address, not a global address.Also it is possible to enable RIPng directly on an interface without going into router configuration mode
2. EIGRPv6
EIGRPv6 works same as EIGRP in IPv4 except that the use of network command is gone, and the network and interface to be advertised must be enabled from interface configuration mode.
3. OSPFv3
The main changes in IPv6 OSPF are
1. The link state records will be identified by a 128-bit
field instead of a 32-bit one.
2. The routers in the
network will be identified by one of their IPv6 addresses.
3. The network areas will be identified by on the their
IPv6 addresses or an address prefix.
4. An integer signifying
the number of prefix bits will be used instead of a network
mask.
Also another difference is that the interfaces and the networks attached to them are directly configured on the interface in interface configuration mode.
