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Layer 2

Name Model Location
switch-g11-d HPE A5120-48G Top-rack
switch-g1 3Com/HP A5500-48G G1 ceiling
switch-roof HP Procurve 8-port Block B roof/plant room
switch-roof-b HP Procurve 24-port Block B roof/plant room
other unmanaged edge switches
                hubs       summerhall
                   \       /
                    \     /
                     \   / 
     unifi-g11 -- switch-g11-d
                      / \     \
                     /   \    switch-roof-b -- ap-roof
                    /     \
                   /      switch-roof
         /    |    \
        /     |     \
       /      |      \
unmanaged-g2  |    unifi-g1/g2/g8
      [multiple in g1]

HUBS: Gigabit copper between oxygen and the HUBS router in our rack.

Summerhall: Gigabit fibre between switch-g11-d and the Summerhall server room. This was originally intended to be connected directly to oxygen, but the SFP was incorrectly configured so we are currently using a VLAN via our switch.

Layer 3

Internal IPv4

Routing is handled by oxygen, a Dell PowerEdge R610 running RouterOS.

Old: HUBS and 2a04:5d00:70::/48 provided by HUBS.

Router address:
External NAT address:

This service will be ceased from 1st July 2020. The IPv4 addresses will continue to be routed via a tunnel until 14th July 2020.

New: Summerhall

Router IP:
Gateway IP:

IPv4 (owned by Hacklab):
IPv6 (Fluency PA): 2a00:a600:6::/48
IPv6 (HUBS PA): 2a04:5d00:70::/48


Hostname Location SSIDs
unifi-g1 G1 (Main room) Hacklab, spacenet
unifi-g2 G2 (Laser room) Hacklab, spacenet
unifi-g8 G8 (Workshop) Hacklab, spacenet
unifi-g11 G11 (Store room) Hacklab, spacenet
unifi-g14 G14 (Electronics) Hacklab, spacenet
unifi-makerbee Floor 2 (MakerBee's office) spacenet
ap-roof Roof spacenet

See WiFi for client connection details.

Record Keeping


network.txt · Last modified: 2020-07-27 16:11 by alfie