Resources/Network: Difference between revisions

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** Takes an 802.1q trunk (with POE!) over a single Cat5/6 cable, and can take up to 8 802.1q tags and broadcast an SSID for each tag. -- [[User:Jof|jof]] 00:51, 4 October 2008 (PDT)
** Takes an 802.1q trunk (with POE!) over a single Cat5/6 cable, and can take up to 8 802.1q tags and broadcast an SSID for each tag. -- [[User:Jof|jof]] 00:51, 4 October 2008 (PDT)


* [[switch1]], a [http://www.cisco.com/en/US/products/hw/switches/ps5213/tsd_products_support_series_home.html Cisco 2940-8TF].
* [[switch1]], a [http://cisco.com/en/US/products/hw/switches/ps637/tsd_products_support_eol_series_home.html Cisco 3512XL].
 
* [[switch2]], a [http://cisco.com/en/US/products/hw/switches/ps637/tsd_products_support_eol_series_home.html Cisco 3512XL].


== Topology ==
== Topology ==

Revision as of 03:28, 3 June 2009

Status

There is an external status monitor at status.noisebridge.net. If something is wrong with the network at 83c, you should contact an admin.

It's 2 AM And The Admins Are Asleep

If no admin responds within a reasonable period of time (say, an hour), take matters into your own hands and send mail to noisebridge-discuss with answers to the following questions:

  • Who are you?
  • What happened?
  • When did the problem begin? (If you were able to find out.)
  • When was the problem noticed?
  • When did it get fixed?
  • What did you do to fix it? Please err on the side of too much detail rather than not enough.

Please try to observe the guidelines for network maintenance, but use your Most Excellent Judgment if something there doesn't seem to apply.

Uplinks

24Mb/5Mb currently via Comcast

  • Comcast Cable (Only internet, no voice or tv service)
    • $66.95 per month (After taxes COD at time of install is $169.21) - $3 modem rental per month
    • No contract!
    • Link speed is ~24Mbit down / ~5Mbit up. More testing during different times of the day would be useful.
    • Wonderful quote from the service representative when asked about network filtering: "The network is filtered. Dynamic ips. Constantly flowing. Upgrading to static is possible through the business department."
    • The direct line for the person who took the order is 1-925-349-3300 x644201
    • Our confirmation number for this order is: 503691

Speakeasy DSL

  • Speakeasy DSL (On a dry pair - Ordered for the (415) 864 area)
    • Service has been delivered and installed at 83c
    • Modem acts as a bridge straight into Speakeasy and comes with 1 static IP, 4 more for $20 per month.
      • Currently 66.92.8.180
      • Additional IP added on Jan 26th (requires configuration on firewall) 66.92.8.123
    • $105.95 per month - ($99.00 install fee, first month free, hardware included - Paid by Jake)
    • Link speed: 6Mb down and 768k up
    • 12 month contract (25 day trial period), $300 fee if canceled in contract but outside of stated trial period.
    • 1 static ip included
    • The direct line for the person (Michelle) who took the order is 1-877-240-4821
    • In the future, we can upgrade the DSL to the following:
      • Kinda fast 8Mb down and 768k up. 149.95 per month. Hardware and install waved.
      • Super fast 10Mb and 1Mb up. 179.95 per month. Hardware and install waved.

Other uplink possibilities

  • Local wifi link (TBD - no current ETA on install)
We need an antenna and a wifi access point that will uplink to our core switch (we need one of those too)
  • Metro fiber
    • jof called IPN for a rough estimate for construction of fiber to 83c. The sales representative's estimate would be between 90,000USD - 100,000USD for the initial buildout.
  • Sonic.net ADSL2
We're on the waiting list for 18Mb/1Mb ADSL2
 Sometime in the next year service will be available in San Francisco.
  • WiMax
Currently this hasn't been very seriously researched 
  • SFLan

We may have line of sight to a node if we can bounce off of a local building. This hasn't been seriously researched. We may want to try to get roof access for antennas and should talk to our very quiet neighbors.

I was contacted by Matt Peterson about connecting. I would be happy to do a site survey to see if you can hit the SFLAN or City wirless deployment from the Valencia Gardens development. That could get you 40Mb/s up and down. - Tim Pozar

Hardware

Ownership

Andy says:

if hardware has been at NB

1. not on a shelf 2. without a sign 3. without visible use for a month

, it's fair game for repurposing.

Current Gear

  • Currently Matt has configured a Soekris net4801 with flashdist OpenBSD 4.4 build, no fancy GUI exists - just simple vi and a pf.conf config file. The eventual plan is to ghetto load balance between the Comcast and Speakeasy circuits.
    • Passwords to both devices are in an envelope in the closet in the fishbowl. Or if you are known within the group, ping jof
    • I've done load balancing like this on Linux (and in fact on a Soekris net4801) if anyone's interested I could prep a CF card to do this. Ryanc 18:34, 22 April 2009 (PDT)
  • Jake has donated a FON La Fonera router that has been liberated with a fresh DD-WRT install.
  • A Ruckus Wireless ZoneFlex 2942 access point.
    • Takes an 802.1q trunk (with POE!) over a single Cat5/6 cable, and can take up to 8 802.1q tags and broadcast an SSID for each tag. -- jof 00:51, 4 October 2008 (PDT)

Topology

Older topology, does not include cisco box or ruckus AP
  • External IP is assigned via DHCP from Comcast on the Soekris box.
  • Currently, the address is 24.5.85.158.
    • If modifying later, beware that Comcast will now only hand out a DHCP lease requested from 00:0A:E4:32:44:6E
    • Comcast does egress filtering, so r00ter can't run asymmetric routing for the DSL IPs over the Comcast link. This manifests as being able to get out via DSL but not being able to get back in via 83c.noisebridge.net.
  • Internal subnet is 172.30.0.0/24
    • Soekris box is at 172.30.0.1
    • switch1 is at 172.30.0.3
    • router1 is at 172.30.0.4 (but has problems.)
    • Ruckus AP (on 12th Ethernet port PoE) 172.30.0.5
  • There are some existing Ethernet segments that you can patch into. If it has a number written in black marker on the outlet, this number corresponds to the outlet on the patch panel in the fishbowl closet.

DNS

Internal machines (with NAT addresses in 172.30.0.0/24) have names in the .noise pseudo-TLD. These names are managed on the Soekris in /etc/hosts (NOT in a zone file). After editing /etc/hosts, you can SIGHUP the dnsmasq process to trigger a reload.

The /etc/hosts file is persistent now (it wasn't back when we used pfSense) so it no longer needs to be maintained on the wiki; the copy on the soekris is canonical now.

Wireless networks

The following networks are active at 83c now:

  • noisebridge - insecure, NAT to Speakeasy via hardware described above.
  • noisebridge-dsl - insecure, NAT to Comcast via standalone WRT54G. No access to Noisebridge wired network.

The following networks are disabled in the Ruckus AP config:

  • nbsweden - insecure, NAT to Relakks. not yet functional. vlan 21.
  • nbgermany - insecure, NAT to Germany via CCC. not yet functional. vlan 31.
  • nbipv6 - insecure, IPv6 only. not yet functional. vlan 41.
  • nbanonymous - insecure, transparent Tor. not yet functional. vlan 51.
  • nbwpa - "secured" (so they say) using WPA. not yet functional. vlan 61.
  • nblocal - insecure, local-only. No Internet route. not yet functional. vlan 71.

Development

Installing Gear

Andy says:

BTW, I've noticed a bunch of networking / computing gear with fans being installed in the downstairs networking closet. I would highly recommend that people not install gear with fans in that closet:

1. the wood/metal shop is very likely to cause your fans to become full of crap and stop working, and/or short out your power supplies.

2. the building floods in that corner every spring.

We installed a *lot* of spare Cat5 capacity between the upstairs and downstairs closets specifically so that there was no need to put more gear downstairs. Please just use the patch panel (label your patches or they'll be removed!) and install gear upstairs instead.

(Of course things like DOCSIS mean that we need *some* gear downstairs, but it should be

1. fanless

2. mounted on the wall or high up in the cabinet.)


Future Plans

Matt Peterson says:

In brief my suggestion is plug in both upstreams (Speakeasy ADSL and Comcast Cable) to the soekris,
run a trunk to the switches I donated and use the Cisco AP to beacon out 3   SSID's "noisebridge", 
"noisebridge-dsl", "noisebridge-cable".  Each of these would map out to the various outbound ISP's 
(some folks may want quicker flickr uploads or faster  firefox downloads or whatever), with the
generic SSID combined both connections (shunt ssh, sip and other latency stuff over the larger
outbound, the rest down the other  connection).  A shell script would monitor outages, reload pf
rules as needed if a connection goes down.  I got as far as making pf do the dual ISP network,
however I never setup the trunk on the switches or Cisco AP (though the equipment is floating
around the space).

Network Devices & Services