Tuesday 5 June 2018

Address Scope

Multicast address scope
IPv6 addressIPv4 equivalentScopePurpose
ff00::/16-ff0f::/16Reserved
ffx1::/16127.0.0.0/8Interface-localPackets with this destination address may not be sent over any network link, but must remain within the current node; this is the multicast equivalent of the unicast loopback address.
ffx2::/16224.0.0.0/24Link-localPackets with this destination address may not be routed anywhere.
ffx3::/16239.255.0.0/16IPv4 local scope
ffx4::/16Admin-localThe smallest scope that must be administratively configured.
ffx5::/16Site-localRestricted to the local physical network.
ffx8::/16239.192.0.0/14Organization-localRestricted to networks used by the organization administering the local network. (For example, these addresses might be used over VPNs; when packets for this group are routed over the public internet (where these addresses are not valid), they would have to be encapsulated in some other protocol.)
ffxe::/16224.0.1.0-238.255.255.255Global scopeEligible to be routed over the public internet.

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