This page is developer documentation on the networking infrastructure of the School Server

Network addresses and netblocks

Network addresses

172.18.0.1 is the main 'schoolserver' (server 1) address. Key services bind here.
172.18.1.x is the address of each school server for inter-server routing
fe80::abcd:fe01 is the 'link-local' IPv6 address of the server over mesh, some services bind here.
fe80::abcd:fe02 is the 'link-local' IPv6 address of the server over LAN/AP, some services bind here.

DHCP leases - mesh

Server 1 - 172.18.10.2 ~ 172.18.15.254
Reserved - 172.18.16.2 ~ 172.18.25.254
Server 2 - 172.18.26.2 ~ 172.18.31.254
Server 3 - 172.18.34.2 ~ 172.18.39.254
Server 4 - 172.18.42.2 ~ 172.18.47.254
... Server 5 to 8 follow the same pattern. The routing is setup so that each of these servers has control over the /23 unused at the "end" of the range.

DHCP leases - LAN / AP

Server 1: 172.18.96.2 to 172.18.125.254 -- this is 172.18.96.1/19 minus 510 addresses at the end of the range.
Only server 1 hands out leases on the LAN/AP

Reserved or unused ranges

The /23 at the end of each range routed by each server - unused
Mesh (from server 1): 172.18.16.0/24 - reserved for XO activation
Mesh (from server 1): 172.18.17.0 ~ 172.18.25.254 - unused
LAN/AP: 172.18.126.0/24 - reserved for static IP addresses on the LAN, such as printers, AP management consoles, etc.
LAN/AP: 172.18.127.0/24 - reserved for XO activation

Network devices

TODO: Document the workings of lanbond0, mshbond0, eth0, etc.