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What is the scope of link local address in IPv6

merangas
Level 1
Level 1

What is the reach-ability of a link local address of IPv6 when compared to the global address

2 Accepted Solutions

Accepted Solutions

aneenair
Level 1
Level 1
Its local to the connected link. Won't be propagated after that.

View solution in original post

Peter Paluch
Cisco Employee
Cisco Employee

Hi,

A station identified by an IPv6 link-local address can only be spoken to only by other stations on the same link (in the same LAN/VLAN). As soon as there is a router between the sender and the destination identified by a link-local address, the communication will fail.

A station identified by an IPv6 global address can be spoken to from any location in the network.

Please feel welcome to ask further.

Best regards,
Peter

View solution in original post

2 Replies 2

aneenair
Level 1
Level 1
Its local to the connected link. Won't be propagated after that.

Peter Paluch
Cisco Employee
Cisco Employee

Hi,

A station identified by an IPv6 link-local address can only be spoken to only by other stations on the same link (in the same LAN/VLAN). As soon as there is a router between the sender and the destination identified by a link-local address, the communication will fail.

A station identified by an IPv6 global address can be spoken to from any location in the network.

Please feel welcome to ask further.

Best regards,
Peter

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