Which Ipv6 Network Prefix Is Only Intended For Local Links And Can Not Be Routed?
Which Ipv6 Network Prefix Is Only Intended For Local Links And Can Not Be Routed?
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Which IPv6 network prefix is only intended for local links and cannot be routed?
Answer: The local-link prefix for IPV6 which is only intended for local links and cannot be routed is FE80: :/10. A device with only this address can communicate with devices on the same network and not with the devices on a different network.
Let’s further discuss the link-local address exact meaning and its role on IPV6. those Who are interested will read the topic to the end.
What is the local-link address?
In networking, the local-link address is for that host who is connected within the network and allows the communication between them. The process which is associated with the link-local address is called stateless address autoconfiguration or automatic private ip addressing known as APIPA. However, the local-link address is not considered as unique apart from their network part that is the reason the routers do not forward packets in local-link origin or the destination. The local link for IPV4 starts from 169.254.0.0/16 (169.254.0.0 to 169.254.255.255) while in IPV6 the starts with the block FE80: :/10.
How to address the local-link address?
The link-local is assigned can address manually or automatically by an administrator. In the internet protocol they are addressed with the help of stateless address autoconfiguration .it is a process that selects the stochastic procedure by choosing the link-local address values and assigning them the pseudo address randomly which is different from other sessions.
In IPV6 the local link is addressed from the interface media access control with rule base method. IPV4 is used when there is no external stateful mechanism of the configuration address present i.e., the dynamic host configuration protocol.
IPv6 local-link address
As you know the local-link address which is assigned or reserved for IPv6 is fe80: :/10 and it is for unicast. From the 64 bits local-link addresses the first 10 bits (1111111010) are fixed for IANA-reserved for local-link address, and the subnet ID is zero. Apart from IPv4, the local-link address is needed by the IPv6 in each interface of the network, even if the routable addresses are appointed. The host of the IPv6 has various IP addresses which are allocated to the IPv6 present interface.
For the DHCP and many other protocols of the IPv6 sublayer functions the local-link addresses are needed. For the packets reaches to the exact destination the local-link address is attached with the host and the zero index is also present in the address. The addresses are allocated by automatic (stateless) and manual. The autoconfiguration as stateless address autoconfiguration worked with neighbor discover protocol (NDP) and the addresses are made with routing prefix and the specific identifier of the network interface.
From the NDP the router host gives the information related to the configuration to the related link attached with the interface which also allows the IP addresses to receive the interface for either local or global. The specification is given by addressing the methodology of selection.