Table 115 feature specifications – ZyXEL Communications NBG420N User Manual
Page 275

Appendix A Product Specifications and Wall-Mounting Instructions
NBG420N User’s Guide
275
IPSec VPN
This allows you to establish a secure Virtual Private Network (VPN)
tunnel to connect with business partners and branch offices using data
encryption and the Internet without the expense of leased site-to-site
lines. The NBG420N VPN is based on the IPSec standard and is fully
interoperable with other IPSec-based VPN products.
Bandwidth Management
You can efficiently manage traffic on your network by reserving
bandwidth and giving priority to certain types of traffic and/or to particular
computers.
Wireless LAN Scheduler
You can schedule the times the Wireless LAN is enabled/disabled.
Time and Date
Get the current time and date from an external server when you turn on
your NBG420N. You can also set the time manually. These dates and
times are then used in logs.
Port Forwarding
If you have a server (mail or web server for example) on your network,
then use this feature to let people access it from the Internet.
DHCP (Dynamic Host
Configuration Protocol)
Use this feature to have the NBG420N assign IP addresses, an IP
default gateway and DNS servers to computers on your network.
Dynamic DNS Support
With Dynamic DNS (Domain Name System) support, you can use a
fixed URL, www.zyxel.com for example, with a dynamic IP address. You
must register for this service with a Dynamic DNS service provider.
IP Multicast
IP Multicast is used to send traffic to a specific group of computers. The
NBG420N supports versions 1 and 2 of IGMP (Internet Group
Management Protocol) used to join multicast groups (see RFC 2236).
IP Alias
IP Alias allows you to subdivide a physical network into logical networks
over the same Ethernet interface with the NBG420N itself as the
gateway for each subnet.
Logging and Tracing
Use packet tracing and logs for troubleshooting. You can send logs from
the NBG420N to an external syslog server.
PPPoE
PPPoE mimics a dial-up Internet access connection.
PPTP Encapsulation
Point-to-Point Tunneling Protocol (PPTP) enables secure transfer of
data through a Virtual Private Network (VPN). The NBG420N supports
one PPTP connection at a time.
Universal Plug and Play
(UPnP)
The NBG420N can communicate with other UPnP enabled devices in a
network.
Table 115 Feature Specifications
FEATURE
SPECIFICATION
Number of Static Routes
8
Number of Port Forwarding Rules
10
Number of NAT Sessions
16000
Number of Address Mapping Rules
10
Number of VPN Tunnels
2
Number of Bandwidth Management
Classes
3
Number of DNS Name Server Record
Entries
3
Table 114 Firmware Features
FEATURE
DESCRIPTION