When pinging a link-local or site-local address, it is recommended to specify the scope-ID to make the destination address unambiguous. For example, to send Echo Requests to Host B from the IPv6 address of fe80::210:5aff:feaa:20a2, use the following command: To specify the source address from which the Echo Request messages are sent, you can also use the Ping6.exe -s option. Use ipv6 if on Host B to obtain the link-local address for the Ethernet interface.Įxample: The link-local address of Host B is fe80::260:97ff:fe02:6ea5.įrom Host A, ping Host B using Ping6.exe. Use ipv6 if on Host A to obtain the link-local address for the Ethernet interface.Įxample: The link-local address of Host A is fe80::210:5aff:feaa:20a2. Install the Microsoft IPv6 Technology Preview for Windows on two Windows hosts (Host A and Host B) that are on the same link (subnet). To ping using IPv6 between two link-local hosts You can do a simple ping (an exchange of ICMPv6 Echo Request and Echo Reply messages) using IPv6 between two link-local hosts. Testing Connectivity Between Two Link-local Hosts Interface 4 is an interface corresponding to an installed Ethernet adapter with a link-local address of fe80::210:5aff:feaa:20a2.įor more information on IPv6 addressing and an overview of IPv6 concepts, see the Introduction to IPv6 white paper. Interface 1 (site 0): Loopback Pseudo-Interface Preferred address ::10.0.0.2, infinite/infinite Interface 2 (site 0): Tunnel Pseudo-Interface Multicast address ff02::1:ff00:2, 1 refs, last reporter Preferred address fe80::a00:2, infinite/infinite Interface 3 (site 1): 6-over-4 Virtual Interface Multicast address ff02::1:ffaa:20a2, 1 refs, last reporter Multicast address ff02::1, 1 refs, not reportable Preferred address fe80::210:5aff:feaa:20a2, infinite/infinite Ipv6 if Interface 4 (site 1): Local Area Connection You can view your link local address by using ipv6 if, as demonstrated in the following example: Therefore, the link-local address of this example node with the prefix fe80::/64 and the interface identifier 02-60-08-ff-fe-52-f9-d8 is fe80::260:8ff:fe52:f9d8. The link-local address of a node is the combination of the prefix fe80::/64 and the 64-bit interface identifier expressed in IPv6 colon-hexadecimal notation. Therefore, the IPv6 interface identifier corresponding to the Ethernet MAC address of 00-60-08-52-f9-d8 is 02-60-08-ff-fe-52-f9-d8. The result is that for the first byte, 0x00 becomes 0x02. The second low-order bit of 0x00 is 0 which, when complemented, becomes 1. The Universal/Local bit, the second low-order bit of 0x00 (the first byte) of the MAC address is complemented.The hex digits 0xff-fe are inserted between 0x08 (the third byte) and 0x52 (the fourth byte) of the MAC address, forming the 64-bit address 00-60-08-ff-fe-52-f9-d8.If it is a 1, it is turned to 0, and if it is a 0, it is turned to 1.įor example, for the MAC address 00-60-08-52-f9-d8: The Universal/Local bit, the second low-order bit of the first byte of the MAC address, is complemented.The hex digits 0xff-fe are inserted between the third and fourth byte of the MAC address. To create the IPv6 interface identifier from the 48-bit (6-byte) Ethernet MAC address: The last 64 bits of the IPv6 address is known as the interface identifier and is derived from the 48-bit MAC address of the network adapter. Link-local addresses have the prefix fe80::/64. The following illustration shows the configuration of two nodes on a single subnet using link-local addresses.īy default, IPv6 configures link-local IP addresses for each interface corresponding to installed Ethernet network adapters. In IPv6 terminology, the two nodes are on the same link with no intermediate routers. This configuration consists of at least two nodes on the same subnet. The first configuration requires no additional configuration beyond installing the Microsoft IPv6 Technology Preview protocol.
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