From Whitespace (Hackerspace Gent)
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This page was created for the sole purpose of creating clarity in the networking thingies at 0x20.

Connection to internet

ISP: Dommel

After discussing multiple options, we decided to go with Dommel: fast access, cheap, no caps, no ports blocked. We went with the lower cost - lower speed option, with the idea that, if we want more, we can always upgrade.

Note: We are currently not using anything of the web- and mailservice below.

Connection details:

adsl-number 100987582393
news-pass: xxx

Advanced modem/router settings:

protocol: rfc 2684 (aka 1483) multi-protocol over atm (bridged or routed)
vpi/vci: 8/35
ipaddress: automatic/dhcp
encapsulation: llc
password: not needed

More router settings

Default Gateway:
Preferred DNS Server:
Alternate DNS Server:
Downstream Line Rate (Kbps):	12742
Upstream Line Rate (Kbps):	945

VPI/VCI	Service Name	Protocol	IGMP	QoS	Status	IP Address	Subnet Mask
8/35	mer_8_35	MER	        Disable	Disable	Enable

web- and mailservice:

Your personal homepage at has not yet been activated. To activate, login at with username "" and password "xxx". Click on "My Packages" -> Click on the "E" at the right of your adsl-account. You can configure your emailaccounts by clicking on the "O".

If you have any questions, please first check our support pages at (click on "online faq"). If you cannot find an answer to your questions here, you can open a ticket at (click on "support-desk"), or contact us by telephone every workingday between 09.00 and 18.00 (+32 70 224 305) or by fax (+32 70 224 305).

Wireless Antwerp

We also have a connection to the wireless antwerp network Wireless_Antwerp

LAN @ Whitespace

You can find the backup config files here: File:Network configurations v1.7z

The Modem: DLink DSL-2740B

We use this modem for the adsl connection to Dommel. Beware when you configure the modem: once every x restarts, the adsl stops working. Waiting a few minutes and restarting it again seems to fix it...


Dommel uses dhcp to give us an ip (although the ip itself is static). Because the modem randomly fails to do the dhcp, we configured the modem as bridge (translate adsl to ethernet). The router (totoro) now does the dhcp.

Totoro: the router

The cisco RV082 router serves as the main router. It has the following functions:

  • dhcp server which gives out ip's in the range (also gives the openDNS servers)
  • 2 WAN connections: One to Dommel, one to Wireless Antwerp.

The load-balancing and failover is configured so that:

  • all traffic from LAN ip's in range (includes the full dhcp range) goes default through dommel's ADSL(wan2)
  • all traffic from LAN ip's in range goes default through the Wireless Antwerp uplink (wan1)
  • If one of the interfaces goes down (interfaces are being checked by pinging, all traffic goes through the other interface
LAN side IP:
WA side (WAN1) IP: automatic(dhcp from WA antenna)
Modem side (WAN2/DMZ) IP: automatic(dhcp from dommel)

Cisco AirPlus 2.4 ghz Wireless Access point

There are a few of them around the space. You can reset the AP's to factory settings by holding the reset button for 20 seconds. They provide 2 wireless network:


  • WPA key: unicorns
  • Is connected to Totoro (load-balancing between WA and Dommel)


  • WPA key: unicorns
  • Is directly connected to WA network