MTU's IPv6 address block is 2001:48a8::/40, which contains 309,485,009,821,345,068,724,781,056 (or 2⁸⁸) addresses. Subnets will be assigned by VLAN/IPv4 subnet, incorporating Telcom's VLAN id (in hexadecimal) into all network prefixes as the fourth-most-significant word in the address. Additionally, the 6th byte (lower half of the third-most-significant word in the address) will be used as a "routing group identifier". Each Telcom router will route for networks in 2001:48a8:00GG::/48, where GG is this router/group identifier.

For example, ITS's EERC staff workstations and servers are on VLAN 2, which is routed by router 0. The corresponding IPv6 network is then 2001:48a8:0:2::/64.

IPv6 subnets have already been assigned by Telcom and will continue to be created as new VLANs and IPv4 subnets are created. (View assignments)

How you number your hosts is mostly up to you. Telcom will reserve 2001:48a8:00GG:V::1 (where GG indicates the "routing group" as above and V indicates the VLAN) for the router address on each subnet and addresses matching 2001:48a8:00GG:V:ffff:ffff:ffff:0/112 on each subnet for Telcom use. If your VLAN contains hosts that belong to other departments or system-administration units, please contact Telcom for suggestions to avoid address contention.

Some sites use address autoconfiguration to assign addresses to hosts; however, Telcom does not plan to implement this, at least in departmental networks. Address autoconfiguration relies on a router to assign addresses, and each host's MAC address is incorporated into the IP address. As it would likely be anywhere between inconvenient and dangerous for a host's IP address to change when its NIC is replaced, all addresses will be statically assigned. Dynamically-configured addressing is posssible, however, with a DHCPv6 client and server.

When you assign an address to a host, please register it in the NED or MTUNet.

New additional IP address
-------------------------
Master hostname: host.dom.mtu.edu
     IP address: 2001:48a8:0:ff::1:5
                    

You may abbreviate/compress your IP address however you like as long as it is no more than 30 characters long (limitation in Telcom's telemanagement software). There is no need to register link-local addresses.