NetSpace

TODO

• Determine how to create automatic fail-over for T1 Lines to fail-over onto a cable modem line or a DSL Line.
• Determine how to load balance network traffic over a cable line and/or T1 line to reduce cost and improve bandwidth

Wireless Network

• Public Access Wireless Network: Create hassle-free simultaneous Internet access to a large number of temporary users
• Employee Access Wireless Network: Create a VLAN that provides securely encrypted employee access with a required login
• Robust
• Scalable
• Secure

Wireless Network Planning

• Determine how many simultaneous users you plan to support
• Do a site survey
  • VisiWave Software (SO version) around $500 with non-profit discount. uses floor plan of the facility to map wireless signal strength.
  • Wi-Spy Spectrum Analyzer maps the channel interface and maps existing access point strengths and weaknesses
• Make sure you have enough bandwidth
  • You can bond to T1s together to double your bandwidth capacity
  • You can purchase a new 10MB circuit
  • You can create load balancing and redundancy in your WAN network traffic between your T1 and a second low-cost option: cable modem or DSL line.
  • Monitor your T1 / bandwidth usage

Wireless Security

• Each AP needs to block communication between wireless computers (prevents wireless users hacking on other wireless users)
• You can provide Wireless Login via Microsoft Windows IAS (Microsoft Radius)
• An easy way to provide encrypted wireless is to share a secret passphrase with WPA Encryption. However, if bad guys get your secret passphrase, that's not too secure though. WEP encryption is known to be cracked within minutes.

Wireless Access Points

• Allied Telesis AT-WA7400-10 -- Enterprise class WLAN access point
  • Power over Ethernet (Poe)
  • Load Balancing
  • VLAN Support
  • Wireless Distribution System (WDS) Support
  • Firmware Upgradeable
• Proxum
  • Proxim AP 700
  • Proxim AP 4000 w/ VLAN (64 concurrent connected users)
  • Adventnet's Wifi Manager can centrally manage the Proxim's access points.
• Nomadix
  • Nomadix AG 3000
  • Nomadix USG II Gateway (Universal Subscriber Gateway Appliance; supports 250 to 2,000 wireless users)
• HP
• Cisco Aironet
• Sonicwall

Wired 1 GB Network

• Power Over Ethernet (POE)
  • Dell PowerConnect Switches
• Copper
  • HP Procurve Switches Are Great
• Fiber

Wired 10 GB Network

• Copper
• Fiber

Wired 100 MB Network

• Copper
  • HP Procurve Switches Are Great
• Fiber

Linux Networking

• What can you do with a second ethernet port?

-- JeffreyThompson - 09 Jun 2008