THE MISSING LINK
Wireless solutions for remote & local technologies and CCTV
As wireless technology has improved, over 30% growth in solutions and services are anticipated due to improved capability to implement systems and technology. Wireless solutions enable very FAST setup for networks for an almost endless list of technologies. Wireless networks continue to strengthen your ability to create missing links and do much more than has ever been possible. This presentation will look at point to point (“PtP”) links, and point to multi point (“PtMP”) links, secure links, and public hotspots.
- Point to Point (PtP)
- Point to Multi Point (PtMP) Wireless links
- Secure Links
- Public Hotspots
The Missing Link.
- How many times have you thought, we cannot do this job as we cannot cable it?
- Have you considered you will not get this job as the distance is too great for cabling?
- Cost of connections from A to B to much? Imagine the cost to close roads and trench through them for cabling then roadworks to remediate your trenching.
- Mining challenges been a problem?
- Ever wondered how to link ships to ports?
- How can trucks connect to site for CCTV and Data?
- How could you link 2 carparks for remote control of gates or booms or payment processing?
1. Point to Point (PtP)
As the term suggests, this link is between 2 devices (also known as: radios, access points, stations, clients, master, slave, etc).
When creating a Wireless Network it is important to recognise that data is transferred and received from both Points so technically speaking for a PtP link it does not matter which Point is the Access Point/Master or which is the Station/Client.
Indirect PtP can also be established to get around obstacles. In these scenarios you would use 1 or more devices to extend the range or to get around obstacles.
2. Point to Multi Point (PtMP)
As the term suggests, these links are between 1 Access Point and multiple Stations/Clients.
PtMP are becoming extremely common for CCTV and other security systems and in many countries around the world they provide critical infrastructure links for instrumentation, private WiFi and Wireless Internet Service Providers (WISP).
3. Secure Links
Maintaining secure links is or should be critical in the design of all wireless links and several layers of security are possible in most devices including:
- SSID Service Set Identifier is the name that a station/client uses to connect to an Access Point. Create vague SSID’s that do not encourage access.
- E.g: viruses, or spam, or just a number.
- Hide your SSID. Out of sight out of mind. This is not 100% secure but is a good step.
- White List connections, so that only users, or IP address or MAC addresses in your list can connect through link.
- Monitor Rogue Access Points.
- Use proprietary links that will only communicate with each other.
- Change default username and passwords (e.g: admin/admin).
- Avoid using port 80 for administration access.
- Use frequency offset.
- Use a Spectrum Analysis tool to select least used frequency.
- Use encryptions like WPA2 AES.
- Use strong passwords. Upper and lower case and numbers and characters.
- Use VLAN’s where practical.
- Enable Firewall modes.
- Adjust Output Power to minimum needed.
- Lock to AP MAC address.
- Check your client lists in Access Points.
- Select non-standard IP ranges.
- Limit user bandwidth.
The above options are available in well respected Access Points and Stations and as many as possible should be used when practical.
Notes: A strong user name and weak password is probably better than and common username and string password, BUT you should aim to have a strong username and strong password.
4. Public Hotspots
Public Access Wireless Networks are now common place in hotels, cafes, airports and in the workplace. In essence a Hotspot is a PtMP link that is connected to the internet.
Commercial Hotspots in places like hotels continue to grow revenue and in other spaces we see the introduction of free WiFi possible from advertising pages.
FREE WiFi Hotspots are now offered by many councils, cafe’s, and airports.
With the use or combination of PtP and/or PtMP and/or Hotspots we expect growth of over 30% in the capability to implement systems and technology. Wireless solutions enable very FAST setup for networks for an almost endless list of technologies. Wireless networks continue to strengthen your ability to create missing links and do much more than has ever been possible.
We hope that this very short insight into Wireless basics will open your mind to the massive potential that exists to further your needs or solutions.