ZyXEL ZyWALL ATP700 User Guide - Page 315

DHCP Relay, DHCP Server, Add Static DHCP, Pool Size, Subnet Mask, IP Pool Start Address, Custom

Page 315 highlights

Chapter 9 Interfaces Table 119 Configuration > Network > Interface > Bridge > Add / Edit (continued) LABEL DESCRIPTION Ingress Bandwidth MTU DHCP Setting DHCP This is reserved for future use. Enter the maximum amount of traffic, in kilobits per second, the Zyxel Device can receive from the network through the interface. Allowed values are 0 - 1048576. Maximum Transmission Unit. Type the maximum size of each data packet, in bytes, that can move through this interface. If a larger packet arrives, the Zyxel Device divides it into smaller fragments. Allowed values are 576 - 1500. Usually, this value is 1500. Select what type of DHCP service the Zyxel Device provides to the network. Choices are: None - the Zyxel Device does not provide any DHCP services. There is already a DHCP server on the network. DHCP Relay - the Zyxel Device routes DHCP requests to one or more DHCP servers you specify. The DHCP server(s) may be on another network. Relay Server 1 Relay Server 2 IP Pool Start Address DHCP Server - the Zyxel Device assigns IP addresses and provides subnet mask, gateway, and DNS server information to the network. The Zyxel Device is the DHCP server for the network. These fields appear if the Zyxel Device is a DHCP Relay. Enter the IP address of a DHCP server for the network. This field is optional. Enter the IP address of another DHCP server for the network. These fields appear if the Zyxel Device is a DHCP Server. Enter the IP address from which the Zyxel Device begins allocating IP addresses. If you want to assign a static IP address to a specific computer, click Add Static DHCP. Pool Size If this field is blank, the Pool Size must also be blank. In this case, the Zyxel Device can assign every IP address allowed by the interface's IP address and subnet mask, except for the first address (network address), last address (broadcast address) and the interface's IP address. Enter the number of IP addresses to allocate. This number must be at least one and is limited by the interface's Subnet Mask. For example, if the Subnet Mask is 255.255.255.0 and IP Pool Start Address is 10.10.10.10, the Zyxel Device can allocate 10.10.10.10 to 10.10.10.254, or 245 IP addresses. First DNS Server Second DNS Server Third DNS Server If this field is blank, the IP Pool Start Address must also be blank. In this case, the Zyxel Device can assign every IP address allowed by the interface's IP address and subnet mask, except for the first address (network address), last address (broadcast address) and the interface's IP address. Specify the IP addresses up to three DNS servers for the DHCP clients to use. Use one of the following ways to specify these IP addresses. Custom Defined - enter a static IP address. From ISP - select the DNS server that another interface received from its DHCP server. First WINS Server, Second WINS Server Default Router Zyxel Device - the DHCP clients use the IP address of this interface and the Zyxel Device works as a DNS relay. Type the IP address of the WINS (Windows Internet Naming Service) server that you want to send to the DHCP clients. The WINS server keeps a mapping table of the computer names on your network and the IP addresses that they are currently using. If you set this interface to DHCP Server, you can select to use either the interface's IP address or another IP address as the default router. This default router will become the DHCP clients' default gateway. To use another IP address as the default router, select Custom Defined and enter the IP address. ZyWALL ATP Series User's Guide 315

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Chapter 9 Interfaces
ZyWALL ATP Series User’s Guide
315
Ingress
Bandwidth
This is reserved for future use.
Enter the maximum amount of traffic, in kilobits per second, the Zyxel Device can receive
from the network through the interface. Allowed values are 0 - 1048576.
MTU
Maximum Transmission Unit. Type the maximum size of each data packet, in bytes, that can
move through this interface. If a larger packet arrives, the Zyxel Device divides it into smaller
fragments. Allowed values are 576 - 1500. Usually, this value is 1500.
DHCP Setting
DHCP
Select what type of DHCP service the Zyxel Device provides to the network. Choices are:
None
- the Zyxel Device does not provide any DHCP services. There is already a DHCP
server on the network.
DHCP Relay
- the Zyxel Device routes DHCP requests to one or more DHCP servers you
specify. The DHCP server(s) may be on another network.
DHCP Server
- the Zyxel Device assigns IP addresses and provides subnet mask, gateway,
and DNS server information to the network. The Zyxel Device is the DHCP server for the
network.
These fields appear if the Zyxel Device is a
DHCP Relay
.
Relay Server 1
Enter the IP address of a DHCP server for the network.
Relay Server 2
This field is optional. Enter the IP address of another DHCP server for the network.
These fields appear if the Zyxel Device is a
DHCP Server
.
IP Pool Start
Address
Enter the IP address from which the Zyxel Device begins allocating IP addresses. If you want
to assign a static IP address to a specific computer, click
Add Static DHCP
.
If this field is blank, the
Pool Size
must also be blank. In this case, the Zyxel Device can assign
every IP address allowed by the interface’s IP address and subnet mask, except for the first
address (network address), last address (broadcast address) and the interface’s IP address.
Pool Size
Enter the number of IP addresses to allocate. This number must be at least one and is
limited by the interface’s
Subnet Mask
. For example, if the
Subnet Mask
is 255.255.255.0 and
IP Pool Start Address
is 10.10.10.10, the Zyxel Device can allocate 10.10.10.10 to
10.10.10.254, or 245 IP addresses.
If this field is blank, the
IP Pool Start Address
must also be blank. In this case, the Zyxel Device
can assign every IP address allowed by the interface’s IP address and subnet mask, except
for the first address (network address), last address (broadcast address) and the interface’s
IP address.
First DNS Server
Second DNS
Server
Third DNS Server
Specify the IP addresses up to three DNS servers for the DHCP clients to use. Use one of the
following ways to specify these IP addresses.
Custom Defined
- enter a static IP address.
From ISP
- select the DNS server that another interface received from its DHCP server.
Zyxel Device
- the DHCP clients use the IP address of this interface and the Zyxel Device
works as a DNS relay.
First WINS Server,
Second WINS
Server
Type the IP address of the WINS (Windows Internet Naming Service) server that you want to
send to the DHCP clients. The WINS server keeps a mapping table of the computer names
on your network and the IP addresses that they are currently using.
Default Router
If you set this interface to
DHCP Server
, you can select to use either the interface’s IP
address or another IP address as the default router. This default router will become the
DHCP clients’ default gateway.
To use another IP address as the default router, select
Custom Defined
and enter the IP
address.
Table 119
Configuration > Network > Interface > Bridge > Add / Edit (continued)
LABEL
DESCRIPTION