Friday, March 6, 2020

Rules and functions for WI-Fi

When buying a router or wireless access points, keep in mind that different wireless standards have variable maximum speeds. At least, in 2012 you would like to go with 802.11n (which some vendors call Wireless-N). If you have close neighbors, consider a dual band router or access point that also works in the 5GHz frequency band, which provides more more channels and is less congested than the common 2.4GHz band.
Remember that your devices equipped with Wi-Fi devices reach the highest possible speeds with the new routers or access points. We focus on those that support 802.11n and 802.11ac, but they will only achieve this speed when they support this standard. All wireless standards are compatible with their previous versions. But devices that use a previous wireless standard will not work as well and may even affect the performance of your entire wireless network service routers.

Ethernet Considerations

When buying any network equipment that has Ethernet ports, consider these related features and specifications.
Ethernet Speed: For routers, gateways, firewalls and switches, focus on the models that support Gigabit for higher speeds on your wired devices. Keep in mind the speed that each of your devices supports, which you can update with a PCI or PCIe Ethernet card.
Switching capacity: If you require a network switch, evaluate the switching capacity of competing models to compare the total maximum simultaneous bandwidth supported.
Dual or backup WAN: If Internet access is crucial to your operations, consider routers, gateways, firewalls, switches and access points that support a second WAN port or that support a 3G74G card for fault tolerance or a roll and load in case your main Internet connection decreases.
PoE Support: If you plan to run wireless access points at all times consider routers, gateways, firewalls, switches and access points that support Power over Ethernet so that power can be executed through Ethernet wiring with the data. This feature can save time and money, in contrast to the effort that could be placed near access points or to run new power lines.

VPN server for secure remote connections

A router, gateway or firewall with a VPN server supports remote connections so that users outside the office can securely access the network or so that several offices can link from site to site. There are several types of VPN available.
PPTP: Almost all operating systems and mobile devices support point-to-point tunes protocol. With a built-in VPN, but it doesn't have the best security. Connectivity problems can arise when users connect remotely from networks that do not allow VPN to pass through.
L2TP / IPsec: Also widely supported between operating systems or popular mobile devices, the Layer 2 tunnel protocol has better security than PPTP. However, it is usually more difficult to configure and can also cause connectivity problems when users connect remotely from networks that do not allow VPN to pass through.
SSL: The Secure Sockets Layer protocol allows remote users to connect through a web browser eliminating the problem of VPN transmission, and does not require full client software. You can install a small plug-in through the browser to facilitate the web browsing tunnel and the email traffic of a user. In addition, some SSL VPN methods offer a Web portal where users can access applications and email without any VPN client; Such a configuration would be convenient when they need to connect from home or other non-corporate equipment instead of a workstation.

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