
www.sown.org.uk

Aims of SOWN

• To provide free internet university students and the general public

• City wide wireless coverage

• Coverage of useful areas such as Pubs and student areas

• Play with shiny equipment and technology like WiMAX and IPv6!


www.sown.org.uk

Technical – On campus

• Originally SOWN was an ad-hoc Mesh

network

• Now we have some campus nodes which

use iSolutions’ network to talk to the Internet and the rest of SOWN

• Currently there is one high powered node

working atop of SUSU

• Run embedded PCs with Voyage Linux or

OpenWRT

• High powered (>400mw) miniPCI wifi

cards


www.sown.org.uk

Technical – Servers

• Rack mount servers located in building

32 (EEE)

• sown-auth – does what it says on the

tin – This server is our authentication

server for Web Redirect and 802.1x.

We are directly peered with University

login servers and through them to

eduroam

• sown-vpn – Responsible for handling

back-haul links from remote nodes so

that they can talk to auth

• sown-nat – allows access to the

internet for users of the on campus

nodes and for all machines to update

online etc. Also runs SNMP and cacti

to make pretty graphs


www.sown.org.uk

Technical – More

Servers!

• Servers in Zepler

• sown-6core – IPv6 router for

SOWN

• sown-7core – More IPv6

development. This server is

currently used for Mobile IPv6

testing in ECS and SOWN

• sown-dev – Development server

for testing of new technologies.

Interesting things like Voice over

IP are running on this box


www.sown.org.uk

Technical – SOWN[at]HOME

• Plug’n’Play wireless access points to allow SOWN access to be broadcast from users house with the minimum of fuss

• Just plug it in to a free network port on your router and switch on!

• Makes use of home ADSL line for internet access

• Tunnels are set up to sown-vpn so SOWN network access is granted.

• User authentication is passed down the tunnel to sown-auth

• Nodes are made by Meraki, but run with our own flavour of OpenWRT (linux

distribution for home routers) which is configured to work with SOWN


www.sown.org.uk

What SOWN needs:

• ENTHUSIASTIC PEOPLE!

• You don’t need to be an expert

• You can do as much or as little as you like

• You want to do something cool and new? Tell us and we can probably help!

We are continually improving the web interface for users and administrators

• Firmware updates

• Package management and configuration

• Security

• We have just spent this summer researching Wireless Security and rolling it

out on SOWN

• Long distance wireless research (802.11a and WiMAX)

• Deployment of new technologies: multicast, VoIP, Mobile IPv6 etc…


www.sown.org.uk

SOWN Part 2

What are we currently researching?

• WiMAX – we are shortly going to be the second city in the

UK with this bleeding edge technology

• Multicast – SOWN TV?

• VoIP – Internet phone in your home

• IP Mobility – ECS and Janet UK are currently developing

services in this area. SOWN is integral to this research!


www.sown.org.uk

Buzzwords/Technology:

Wiki

iptables

Firmware

Web2.0

OpenWRT

Voyage LinuxIEEE802.11

VLAN

Bash

Apache

PHP

MySQL

Debian

LDAP

IPv6

Multicast

VoIP

RADIUSSNMP

Nagios

Cacti

RIP OSPF

ZebraDHCP

DNS

OpenVPN

SSL

SSHQuagga

PIMD

WiMAX

RIPng

Southampton Open Wireless Network - baixardoc

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