Black Box Explains...NAC.
Network Access Control (NAC) is a method of ensuring that only known devices are allowed to connect to your network and that they meet your network’s requirements before they are... more/see it nowgranted access.
This is NAC at its most basic level. However, today’s NAC is usually also capable of dictating each user’s level of access and of managing users’ access once they’re on the network.
NAC has a special place in a network security plan because, unlike a firewall, which offers perimeter protection, it monitors the inside of your network. A firewall stops the hacker in Poland from getting to your network through the Internet. NAC stops the hacker inside your building or in the parking lot from getting to your network through an Ethernet port or a wireless access point.
Even though a NAC appliance may also monitor network activity, enforce policies, control resources, and document security, the core function of NAC is to authenticate trusted devices and control who can access your network. It’s important to keep in mind that NAC is only part of a security plan, not a complete security measure. It doesn’t take the place of a firewall and won’t protect against data leaving through e-mail, printouts, or USB flash drives. collapse
Black Box Explains...NAC.
Network Access Control (NAC) is a method of ensuring that only known devices are allowed to connect to your network and that they meet your network’s requirements before they are granted access.
This is NAC at its most basic level. However, today’s NAC is usually also capable of dictating each user’s level of access and of managing users’ access once they’re on the network.
NAC has a special place in a network security plan because, unlike a firewall, which offers perimeter protection, it monitors the inside of your network. A firewall stops the hacker in Poland from getting to your network through the Internet. NAC stops the hacker inside your building or in the parking lot from getting to your network through an Ethernet port or a wireless access point.
Even though a NAC appliance may also monitor network activity, enforce policies, control resources, and document security, the core function of NAC is to authenticate trusted devices and control who can access your network. It’s important to keep in mind that NAC is only part of a security plan, not a complete security measure. It doesn’t take the place of a firewall and won’t protect against data leaving through e-mail, printouts, or USB flash drives.
- Firmware...
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10-Port Gigabit Managed Switch Firmware
Firmware for the LGB1108A (Version v2.00)
Product Data Sheets (pdf)...Universal Mini Media Converter
Black Box Explains... How Autocross conversion can work for you.
When using media converters with 10BASE-T or 100BASE-TX cable, you may need to connect your converter to a non-hub device such as a PC or printer.
According to IEEE 802.3 Ethernet... more/see it nowstandards, media converters originally needed a specially pinned crossover cable to connect to PCs. The crossover cable matches the devices’ transmit and receive pins. Now there are media converters that use straight-pinned 10BASE-T patch cable but incorporate an uplink or crossover connection—a switch on the converter that’s set to support the PC-to-converter connection. By setting the uplink switch to “cross,” the converter’s internal mechanism crosses the pins on the RJ-45 connector to simulate a crossover cable.
Autocross conversion eliminates both the need to crosspin cables and set an uplink switch. It adapts to the pin assignment of the twisted-pair cable whether it’s crossed or uncrossed. And because it senses the pin configuration of any cable pinned to Ethernet specifications, it adjusts automatically without user configuration. collapse
Black Box Explains... How Autocross conversion can work for you.
When using media converters with 10BASE-T or 100BASE-TX cable, you may need to connect your converter to a non-hub device such as a PC or printer.
According to IEEE 802.3 Ethernet standards, media converters originally needed a specially pinned crossover cable to connect to PCs. The crossover cable matches the devices’ transmit and receive pins. Now there are media converters that use straight-pinned 10BASE-T patch cable but incorporate an uplink or crossover connection—a switch on the converter that’s set to support the PC-to-converter connection. By setting the uplink switch to “cross,” the converter’s internal mechanism crosses the pins on the RJ-45 connector to simulate a crossover cable.
Autocross conversion eliminates both the need to crosspin cables and set an uplink switch. It adapts to the pin assignment of the twisted-pair cable whether it’s crossed or uncrossed. And because it senses the pin configuration of any cable pinned to Ethernet specifications, it adjusts automatically without user configuration.
Product Data Sheets (pdf)...PoE PSE Media Converters
Product Data Sheets (pdf)...Multi-Power Miniature Media Converters
- Manual...
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Installation Guide
Installation Guide for the ET0010A, ET0100A, and ET1000A.