ZyWALL 5/35/70 Series User’s Guide

Time and Date

The ZyWALL allows you to get the current time and date from an external server when you turn on your ZyWALL. You can also set the time manually. The Real Time Chip (RTC) keeps track of the time and date.

Reset Button

Use the reset button to restore the factory default password to 1234; IP address to 192.168.1.1, subnet mask to 255.255.255.0 and DHCP server enabled with a pool of 32 IP addresses starting at 192.168.1.33.

Dual PCMCIA and CardBus Slot

The dual PCMCIA and CardBus slot provides the option of a wireless LAN. You can alternatively insert a ZyWALL Turbo Card to use the anti-virus and IDP features.

IEEE 802.11 b/g Wireless LAN

The optional wireless LAN card provides mobility and a fast network environment for small and home offices. Users can connect to the local area network without any wiring efforts and enjoy reliable high-speed connectivity.

1.2.2 Non-Physical Features

Load Balancing

The ZyWALL improves quality of service and maximizes bandwidth utilization by dividing traffic loads between the two WAN interfaces (or ports).

Transparent Firewall

Transparent firewall is also known as a bridge firewall. The ZyWALL can act as a bridge and still have the capability of filtering and inspecting the packets between a router and the LAN, or two routers. You do not need to do any other changes to your existing network.

SIP Passthrough

The ZyWALL includes a SIP Application Layer Gateway (ALG). It allows VoIP calls to pass through NAT by examining and translating IP addresses embedded in the data stream. Use the ALG screen to enable or disable the SIP ALG.

STP (Spanning Tree Protocol) / RSTP (Rapid STP)

When the ZyWALL is set to bridge mode, (R)STP detects and breaks network loops and provides backup links between switches, bridges or routers. It allows a bridge to interact with other (R)STP -compliant bridges in your network to ensure that only one path exists between any two stations on the network.

Chapter 1 Getting to Know Your ZyWALL

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