1 # Network infrastructure
5 NOC runs 2 core switches (one in each room), carrying a bunch of VLANs:
6 - 33 is the management VLAN (192.168.33.0/24);
7 - 127 is the LAN (192.168.127.0/24);
8 - 255 (`0xFF`) is our Funkfeuer VLAN.
13 We use a number of conventions to make things more consistent:
15 - The DNS zone for a given network is `NET.realraum.at`, with the exception
16 of the public services network (which has `realraum.at`);
17 - Networks using RFC 1918 IP space use the 192.168.VID.0/24 subnet;
18 - The gateway for a network is on the last IP for the subnet.
24 Each location has a single AP, `ap{0,1}.mgmt.realraum.at`, which provides SSIDs
25 for the management VLAN (`realstuff`) and the LAN (`realraum` and `realraum5`);
26 we use Ubiquity hardware running OpenWRT.
31 The switches have hostnames `sw{0,1}.mgmt.realraum.at`, and the WiFi access
32 points are similarly `ap{0,1}.mgmt.realraum.at`. `0` denotes the main room, and
33 `1` denotes Wöhnung 2.
40 r1w2 has two fiber connections: one to the main room, and one to the radio room.
41 (We use fiber to avoid creating a ground loop between the locations.)
43 In r1w2, we have a rack hosting a number of devices:
44 - the patch panel and core switch (`sw1.mgmt.realraum.at`) for W2;
45 - the `alfred` virtualization server;
46 - miscelaneous devices:
48 - some Raspberry Pi belonging to members;
51 **Note:** members setting up devices that only need power and network access
52 should do so in this rack (or even better, run a VM or a container
58 realfunk receives the `0xFF` and LAN VLANs trunked on a single fiber;
59 the switch there, `sw2.mgmt.realraum.at`, provides untagged ports on either VLAN.
61 Moreover, there is a Funkfeuer node there; it *does not* advertise the realraum
67 The main room has its patch panel and core switch (`sw0.mgmt.realraum.at`) in
68 Cx. The patch panel has a fiber link to r2w1, and a copper link to an external
69 antenna for our link to Funkfeuer.
71 The network shelf in Cx also houses some important devices:
73 - `smsgw.mgmt.realraum.at`, plus its mobile phone;
74 - the PoE injectors for `ap0.mgmt.realraum.at` and `sch24.r3.ffgraz.net`;
75 - `test.r3.ffgraz.net`, which is a test Funkfeuer node.