ZyXEL Communications P-870HN-51B - V1.0 Manual page 96

Chapter 6 LAN Setup
The following table describes the fields in this screen.
Table 22 LAN > IP
LABEL
LAN TCP/IP
Group Name
IP Address
IP Subnet Mask
DHCP Setup
Active DHCP
DHCP Server
IP Pool
Starting
Address
Pool Size
DHCP Relay
Relay Server
DNS Servers Assigned by DHCP Server
If you do not configure DNS servers, the ZyXEL Device uses its LAN IP address and tells
the DHCP clients on the LAN that itself is the DNS server. When a LAN client sends a DNS
query to the ZyXEL Device, the ZyXEL Device forwards the query to its system DNS server
you configured in the WAN screen.
First DNS
Server
Second DNS
Server
IGMP Snooping
Active IGMP
Snooping
Standard
Mode
Blocking Mode Select this to have the ZyXEL Device block all unknown multicast
96
DESCRIPTION
Select the interface group for which you want to configure the LAN
TCP/IP settings. See Chapter 20 on page 223
interface group.
Enter the LAN IP address you want to assign to your ZyXEL Device in
dotted decimal notation, for example, 192.168.1.1 (factory default).
Type the subnet mask of your network in dotted decimal notation, for
example 255.255.255.0 (factory default).
Select this to have the ZyXEL Device act as a DHCP server or DHCP
relay agent.
Otherwise, deselect this to not have the ZyXEL Device provide any
DHCP services. The DHCP server will be disabled.
Select this option to have the ZyXEL Device assign IP addresses and
provide subnet mask, gateway, and DNS server information to the
network. The ZyXEL Device is the DHCP server for the network.
When the ZyXEL Device acts as a DHCP server, the following items
need to be set:
This field specifies the first of the contiguous addresses in the IP
address pool.
This field specifies the size, or count of the IP address pool.
Select this option to have the ZyXEL Device forward DHCP request to
the DHCP server.
If you select DHCP Relay, enter the IP address of the DHCP server.
Enter the first DNS (Domain Name System) server IP address the
ZyXEL Device passes to the DHCP clients.
Enter the second DNS (Domain Name System) server IP address the
ZyXEL Device passes to the DHCP clients.
Select this option to enable IGMP snooping. This allows the ZyXEL
Device to passively learn multicast group.
Select this to have the ZyXEL Device forward multicast packets to a
port that joins the multicast group and broadcast unknown multicast
packets from the WAN to all LAN ports.
packets from the WAN.
for how to create a new
P-870HN-51b User's Guide