Internet
From August 7th, 2026, we have temporary unplugged Verizon, to smoke test if NYC Mesh is good enough to serve the community. Special attention will be given to coworkers, as a crucial source of income to the space.
Ridgewood Commons provides free internetwired access over twoand wireless networks.internet access, courtesy of NYC Mesh. The network buildout and maintenance has been the result of many contributors over the years. This snapshot of understanding and opinions is an invite for discussion, disagreement, and reflection.
I hope to build our resilience and have fun maintaining our network. IContribute alsoby kindalooking oweat itcurrent to RC Tech & Comms since I've been noodling with the system a bit.
tasks.
Tasks up on vikunja
Forward
Why write this?
because micro's memory of conversations is poor
to help RC Tech & CommsAdmin more safely and swiftly respond to changing community internet needs
to improve the resiliency of the space, and extend that resiliency to our neighbors
How we help each other
Folks with interests and expertise beyond technical can share their values, so we can maintain a network that reflects those values.
Folks with technical interest or expertise can help demystify what the internet is, making it knowable and malleable.
How to get involved
Reach out to RC Tech & CommsAdmin, directly or indirectly. Introduce yourself when you see someone messing with big loops of wire or electronics with blinking lights. I'm probably gonna do office hours, using a tool a community member made to help find a good time for us to do so.
The networks
network
We operate twoone semi-public networksnetwork for use in the space. OneAccess network is commercial provided by verizon, and theover wifi namedssid RidgewoodCommons is the advertised way to connect in the space, complete with silly-hard-to-say-aloud password with qr codecode. thatNYC works-ish. The second network Mesh is RidgewoodCommonsMeshprovidedthe by NYC Mesh, avolunteer community andmaintaining volunteerour runconnection internetto provider.the Norest commercialof interests,the justinternet. neighborsNeighbors sharing wifi with each other, really well documented operations complete with security considerations. Reading some of the writing on that wiki directly motivated me to fill out this page.
RidgewoodCommons
We pay around $85/mo for Verizon. They have provided internet that people expect to have in a community space, and especially as a requirement for coworking, and expectation for events. Its fine, but also fuck Verizon. So here are the details:There is a modem and router in the gym. The router provides wifi, dhcp, and hopefully (we should audit) nothing else. I also heard Common Strength will reach new PRs with the electronics removed, since members won't have to hold back as a courtesy to the network.
RidgewoodCommonsMesh (Under Testing)
We donate $0/month to NYC Mesh, a volunteer-run, community organized internet service provider. I gushed above about what the org does. Currently we are upgrading our connection to the wider mesh, and asking folks to try it out but that it is unstable. If you are interested reach out, we will announce when we are more confident in taking on more testers.
The mess of electronics mounted on the southeast (right) wall under the projector screen is the inside half of our network. The outside half is up on the roof, which connects us to the wider mesh and eventually to the internet.
If you connect to your device will receive a DHCP address by the raspberry pi in RidgewoodCommonsMeshRidgewoodCommons10.70.127.1/24. This pi on the wall network peers with a omnitik on the roof network over a protocol called BGP. (TODO: is this iBGP? is everything in the mesh iBGP? If Ridgewood Commons applied for an AS number, we could make it iBGP right? Is the specialness of the mesh that its the most open AS to be a part of?)
This means the board in the basement is a complete, literal example of how the internet works. If you think this is cool, then you are cool. 😎
location
model
service
notes
power
$
wall
Ubiquiti Unifi UAP-AC Pro
RidgewoodCommonsMesh
access point
OpenWRT 25
9W
120
wall
Netgear GS308EP
10.70.127.9
VLAN port mapping
PoE+
60W PoE+
30W/port
6W
80
wall
Raspberry Pi 4 Model B
PoE+ Hat
DHCP 10.70.127.1/24
Mesh 10.69.2.154/32
Web Server
Arch Linux Arm
linux-rpi kernel
ipv4 forwarding
15W
145
wall
RPi 7" touchscreen
hypno-animation
~/fb16/build/bin/testLines
1W
40
roof
Mikrotik Omnitik
Mesh peer 10.69.2.54/32
[future] switch + wds??
PoE + switch, bird, routing solarprotocol
18W
120
roof
Ubiquiti Litebeam AC Gen 1/2
5Ghz gateway to vernon
7W
75
roof
AF60-LR
60Ghz gateway to vernon
18W
270
roof
sxtsq ac?
router offload for omnitik
TODO: make router
6W
70
VLAN
To have our own network, the pi is the dhcp server and router. The pi only has 1 ethernet port, so we use a vlan to create a second virtual cable. Ports 2 and 7 are the special ones.
port
mode
pvid (primary vlan id)
vlan memberships
1
trunk
1
1U
2
trunk
1
1U, 52T
3
trunk
1
1U
4
trunk
1
1U
5
trunk
1
1U
6
trunk
1
1U
7
access
52
52U
8
trunk
1
1U
Technical Details
A ton of random things to know
Router Setup
/etc/sysctl.d/10-enable-ipv4-forwarding.confnet.ipv4.forward = 1
Peering with the roof
[root@alarm ~]# birdc show ospf neighborsBIRD 3.2.0 ready.ospf1:Router ID Pri State DTime Interface Router IP10.69.2.54 1 Full/PtP 38.928 end0.52 10.69.2.54

