ZyXEL 35 Guia Do Utilizador

ZyWALL 35 Support Notes

After it’s done, the outgoing VOIP traffic with source port 5060 from 192.168.1.x network will be always

processed by WAN2 except WAN2 is not available. Since we choose ‘Use another interface when the

specified WAN interface is not available’, when WAN2 is down, the traffic will be handled by WAN1

then.

For other outgoing traffic not defined in policy route will be assigned to either WAN1 or WAN2 when

traffic reaches session manager in ZyWALL.

Using Bandwidth Management

Why Bandwidth Management (BWM)?

Nowadays, we have many different traffic types for Internet applications. Some traffic may consume high

bandwidth, such as FTP (File Transfer Protocol), if you are downloading or uploading files with large size.

Some other traffic may not require high bandwidth, but they requires stable supply of bandwidth, such as

VoIP traffic. The VoIP quality would not be good, if all of the outgoing bandwidth is occupied via FTP.

Additionally, chances are that you would like to grant higher bandwidth for some body special who is

using specific IP address in your network. All of these are reasons why we need bandwidth management.

How Bandwidth Management in ZyWALL?

ZyWALL achieves BWM by classifying packets, and control when to send out the classified packets.

Bandwidth Management of ZyXEL appliances operates on the IP layer. The major step to configure

BWM is defining filter rules by fields of IP header or TCP/UDP port number. Then specify the volume of