ZyXEL Communications ZyWALL 2 Plus User Manual
Page 361
Chapter 19 Bandwidth Management
ZyWALL 2 Plus User’s Guide
361
Service
This field simplifies bandwidth class configuration by allowing you to select a
predefined application. When you select a predefined application, you do not
configure the rest of the bandwidth filter fields (other than enabling or disabling
the filter).
FTP (File Transfer Program) is a program to enable fast transfer of files,
including large files that may not be possible by e-mail. Select FTP from the
drop-down list box to configure the bandwidth filter for TCP packets with a port
21 destination.
H.323 is a protocol used for multimedia communications over networks, for
example NetMeeting. Select H.323 from the drop-down list box to configure the
bandwidth filter for TCP packets with a port 1720 destination.
Note: If you select H.323, make sure you also use the ALG
screen to turn on the H.323 ALG.
SIP (Session Initiation Protocol) is a signaling protocol used in Internet
telephony, instant messaging, events notification and conferencing. The
ZyWALL supports SIP traffic pass-through. Select SIP from the drop-down list
box to configure this bandwidth filter for UDP packets with a port 5060
destination. This option makes it easier to manage bandwidth for SIP traffic
and is useful for example when there is a VoIP (Voice over Internet Protocol)
device on your LAN.
Note: If you select SIP, make sure you also use the ALG screen
to turn on the SIP ALG.
Select Custom from the drop-down list box if you do not want to use a
predefined application for the bandwidth class. When you select Custom, you
need to configure at least one of the following fields (other than the Subnet
Mask fields which you only enter if you also enter a corresponding destination
or source IP address).
Destination Address
Type
Do you want your rule to apply to packets going to a particular (single) IP, a
range of IP addresses (for example 192.168.1.10 to 192.169.1.50) or a
subnet? Select Single Address, Range Address or Subnet Address.
Destination IP
Address
Enter the single IP address or the starting IP address in a range here.
Destination End
Address / Subnet
Mask
If you are configuring a range of IP addresses, enter the ending IP address
here. If you are configuring a subnet of addresses, enter the subnet mask here.
Refer to
for more information on IP subnetting.
Destination Port
Enter the starting and ending destination port numbers. Enter the same port
number in both fields to specify a single port number. See the following table
for some common services and port numbers.
Source Address Type Do you want your rule to apply to packets coming from a particular (single) IP,
a range of IP addresses (for example 192.168.1.10 to 192.169.1.50) or a
subnet? Select Single Address, Range Address or Subnet Address.
Source IP Address
Enter the single IP address or the starting IP address in a range here.
Source End Address
/ Subnet Mask
If you are configuring a range of IP addresses, enter the ending IP address
here. If you are configuring a subnet of addresses, enter the subnet mask here.
Refer to
for more information on IP subnetting.
Source Port
Enter the starting and ending destination port numbers. Enter the same port
number in both fields to specify a single port number. See the following table
for some common services and port numbers.
Table 110 ADVANCED > BW MGMT > Class Setup > Add Sub-Class (continued)
LABEL
DESCRIPTION