Link Local Address using in NDP (ipv6)

[burhanburhan]

Hi all,

How is using of link local address in NDP. We can discover neighbor by using global address. So why we need link local address in NDP ? thanks in advance...

[Harold Ritter · Accepted solution]

Hi,

Link-local addresses (LLA) are not always used as the source address for the neighbor discovery process. Normally the node uses the address that makes the most sense. If it wants to resolve the LLA of the neighbor on interface X, it uses interface X LLA as the source address. If it wants to resolve the global unicast address of that same neighbor, it uses the corresponding locally configured ipv6 address as the source address. Same would apply for the unique local address (ULA).

Regards,   

[burhanburhan]

ok thank you