Dhcp (Dynamic Host Configuration Protocol); Roadrunner Support - ZyXEL Communications ZyXEL ZyWALL 50 User Manual

Network Address Translation (NAT)
NAT (Network Address Translation - NAT, RFC 1631) allows the translation of an Internet Protocol address
used within one network to a different IP address known within another network.
Port Forwarding
Use this feature to forward incoming service requests to a server on your local network. You may enter a
single port number or a range of port numbers to be forwarded, and the local IP address of the desired server.

DHCP (Dynamic Host Configuration Protocol)

DHCP (Dynamic Host Configuration Protocol) allows the individual clients (workstations) to obtain the
TCP/IP configuration at start-up from a centralized DHCP server. The ZyWALL has built-in DHCP server
capability, enabled by default, which means it can assign IP addresses, an IP default gateway and DNS
servers to Windows 9X, Windows NT and other systems that support the DHCP client. The ZyWALL can
now also act as a surrogate DHCP server (DHCP Relay) where it relays IP address assignment from the
actual real DHCP server to the clients.
Full Network Management
This feature allows you to access the SMT (System Management Terminal) through the console port or telnet
connection.

RoadRunner Support

In addition to standard cable modem services, the ZyWALL supports Time Warner's RoadRunner Service.
Time and Date Setting
This new feature (Menu 24.10) allows you to get the current time and date from an external server when you
power up your ZyWALL. The real time is then displayed in the ZyWALL error logs and firewall logs. If you
do not choose a time service protocol that your timeserver will send when the ZyWALL powers up, you can
enter the time manually but each time the system is booted, the time and date will be reset to
2000/01/0100:00:00.
Logging and Tracing
♦
Built-in message logging and packet tracing.
♦
Unix syslog facility support.
Upgrade ZyWALL Firmware via LAN
The firmware of the ZyWALL 50 can be upgraded via the LAN.
Embedded FTP and TFTP Servers
The ZyWALL's embedded FTP and TFTP Servers enable fast firmware upgrades as well as configuration
file backups and restoration.
Getting to Know Your ZyWALL
ZyWALL 50 Internet Security Gateway
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