User manual ZYXEL ZYWALL USG 50

[. . . ] ZyWALL USG 50 Unified Security Gateway Default Login Details LAN Port IP Address User Name Password P3, P4 https://192. 168. 1. 1 admin 1234 Version 2. 21 Edition 1, 5/2010 www. zyxel. com www. zyxel. com Copyright © 2010 ZyXEL Communications Corporation About This User's Guide About This User's Guide Intended Audience This manual is intended for people who want to want to configure the ZyWALL using the Web Configurator. How To Use This Guide · Read Chapter 1 on page 31 chapter for an overview of features available on the ZyWALL. · Read Chapter 3 on page 43 for web browser requirements and an introduction to the main components, icons and menus in the ZyWALL Web Configurator. · Read Chapter 4 on page 59 if you're using the installation wizard for first time setup and you want more detailed information than what the real time online help provides. · Read Chapter 5 on page 69 if you're using the quick setup wizards and you want more detailed information than what the real time online help provides. [. . . ] · Outbound traffic goes from a LAN1 zone device to a WAN zone device. Bandwidth management is applied before sending the packets out a WAN zone interface on the ZyWALL. · Inbound traffic comes back from the WAN zone device to the LAN1 zone device. Bandwidth management is applied before sending the traffic out a LAN1 zone interface. Figure 270 LAN1 to WAN Connection and Packet Directions LAN1 Connection Outbound BWM BWM Inbound Outbound and Inbound Bandwidth Limits You can limit an application's outbound or inbound bandwidth. This limit keeps the traffic from using up too much of the out-going interface's bandwidth. When you apply a bandwidth limit to outbound or inbound traffic, each member of the out-going zone can send up to the limit. The connection initiator is on the LAN1 so outbound means the traffic traveling from the LAN1 to the WAN. Each of the WAN zone's two interfaces can send the limit of 200 kbps of traffic. 446 ZyWALL USG 50 User's Guide Chapter 29 Application Patrol · Inbound traffic is limited to 500 kbs. The connection initiator is on the LAN1 so inbound means the traffic traveling from the WAN to the LAN1. Figure 271 LAN1 to WAN, Outbound 200 kbps, Inbound 500 kbps Outbound 200 kbps Outbound 200 kbps Inbound 500 kbps Bandwidth Management Priority · The ZyWALL gives bandwidth to higher-priority traffic first, until it reaches its configured bandwidth rate. · The ZyWALL uses a fairness-based (round-robin) scheduler to divide bandwidth among traffic flows with the same priority. · The ZyWALL automatically treats traffic with bandwidth management disabled as priority 7 (the lowest priority). Maximize Bandwidth Usage Maximize bandwidth usage allows applications with maximize bandwidth usage enabled to "borrow" any unused bandwidth on the out-going interface. After each application gets its configured bandwidth rate, the ZyWALL uses the fairness- based scheduler to divide any unused bandwidth on the out-going interface amongst applications that need more bandwidth and have maximize bandwidth usage enabled. Higher priority traffic does not get a larger portion of the unused bandwidth. Bandwidth Management Behavior The following sections show how bandwidth management behaves with various settings. For example, you configure DMZ to WAN policies for FTP servers A and B. Each server tries to send 1000 kbps, but the WAN is set to a maximum ZyWALL USG 50 User's Guide 447 Chapter 29 Application Patrol outgoing speed of 1000 kbps. You configure policy A for server A's traffic and policy B for server B's traffic. Figure 272 Bandwidth Management Behavior 1000 kbps BWM 1000 kbps 1000 kbps Configured Rate Effect In the following table the configured rates total less than the available bandwidth and maximize bandwidth usage is disabled, both servers get their configured rate. Table 128 Configured Rate Effect POLICY A B CONFIGURED RATE 300 kbps 200 kbps MAX. U. No No PRIORITY 1 1 ACTUAL RATE 300 kbps 200 kbps Priority Effect Here the configured rates total more than the available bandwidth. Because server A has higher priority, it gets up to it's configured rate (800 kbps), leaving only 200 kbps for server B. Table 129 Priority Effect POLICY A B CONFIGURED RATE 800 kbps 1000 kbps MAX. PRIORITY ACTUAL RATE Yes Yes 1 2 800 kbps 200 kbps Maximize Bandwidth Usage Effect With maximize bandwidth usage enabled, after each server gets its configured rate, the rest of the available bandwidth is divided equally between the two. So server A gets its configured rate of 300 kbps and server B gets its configured rate of 200 kbps. Then the ZyWALL divides the remaining bandwidth (1000 - 500 = 500) equally between the two (500 / 2 = 250 kbps for each). The priority has no effect on how much of the unused bandwidth each server gets. 448 ZyWALL USG 50 User's Guide Chapter 29 Application Patrol So server A gets its configured rate of 300 kbps plus 250 kbps for a total of 550 kbps. [. . . ] However, there is no guarantee that interference will not occur in a particular installation. If this device does cause harmful interference to radio/television reception, which can be determined by turning the device off and on, the user is encouraged to try to correct the interference by one or more of the following measures: 1 2 3 Reorient or relocate the receiving antenna. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 4 FCC Radiation Exposure Statement · This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 930 ZyWALL USG 50 User's Guide Appendix F Legal Information Notices Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. [. . . ]