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ZyXEL – SBG Support Notes
(the default IP address is 192.168.1.1, default password is 1234).
What network interfaces does the new device Series support?
The new device Series supports auto MDI/MDIX 10/100M Ethernet LAN
port to connect to the computer or Switch on LAN.
How does the device support TFTP?
In addition to the direct console port connection, the device support
uploading and downloading of the firmware and configuration file using
TFTP (Trivial File Transfer Protocol) over LAN.
Can the device support TFTP over WAN?
Although TFTP should work over WAN as well, it is not recommended
because of the potential data corruption problems.
What is Virtual LAN (VLAN)?
A virtual LAN, commonly known as a VLAN, is a group of hosts with a
common set of requirements that communicate as if they were attached to
the same wire, regardless of their physical location. A VLAN has the same
attributes as a physical LAN, but it allows for end stations to be grouped
together even if they are not located on the same LAN segment. Network
reconfiguration can be done through software instead of physically
relocating devices.
What is VLAN construction?
VLANs are created to provide the segmentation services traditionally
provided by routers in LAN configurations. VLANs address issues such as
scalability, security, and network management. Routers in VLAN topologies
provide broadcast filtering, security, address summarization, and traffic
flow management. By definition, switches may not bridge IP traffic
between VLANs as it would violate the integrity of the VLAN broadcast
domain.
Virtual LANs are essentially Layer 2 constructs, whereas IP subnets are
Layer 3 constructs. In a LAN employing VLANs, a one-to-one relationship
often exists between VLANs and IP subnets, although it is possible to have
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