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The following table describes the fields in this screen.
Table 32 Network Setting > LAN > LAN Setup
LABEL
Interface Group
Group Name
Zone
LAN IP Setup
IP Address
Subnet Mask
IGMP Snooping
Status
IGMP Mode
DHCP Server State
DHCP
DHCP Relay
Server Address
IP Address
IP Addressing
Values
Beginning IP
Address
Ending IP
Address
DHCP Option Setup
TFTP Server
Name (option
66)
Bootfile name
(option 67)
TFTP Server
Address (option
150)
SBG3500-N000 User's Guide
DESCRIPTION
Select the interface group name for which you want to configure LAN settings. See
13 on page 226
for how to create a new interface group.
Choose the zone for this interface group from the drop-down list.
Enter the LAN IP address you want to assign to your SBG3500-N 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). Your SBG3500-N automatically computes the subnet mask
based on the IP Address you enter, so do not change this field unless you are instructed to
do so.
Select the Enable IGMP Snooping checkbox to allows the SBG3500-N to passively learn
multicast group.
Select Standard Mode to have the SBG3500-N forward multicast packets to a port that
joins the multicast group and broadcast unknown multicast packets from the WAN to all LAN
ports.
Select Blocking Mode to have the SBG3500-N block all unknown multicast packets from
the WAN.
Select Enable to have the SBG3500-N act as a DHCP server or DHCP relay agent.
Select Disable to stop the DHCP server on the SBG3500-N.
Select DHCP Relay to have the SBG3500-N forward DHCP request to the DHCP server.
This field is only available when you select DHCP Relay in the DHCP field.
Enter the IP address of the actual remote DHCP server in this field.
This field is only available when you select Enable in the DHCP field.
This field specifies the first of the contiguous addresses in the IP address pool.
This field specifies the last of the contiguous addresses in the IP address pool.
Type a name for the TFTP (Trivial File Transfer Protocol) server. This field allows you to
access the TFTP server using DHCP option 66. However, option 66 (open stardard) supports
only the IP address of the hostname or a single TFTP server
Type the bootfile name to access the TFTP server using DHCP option 67. Option 67 is a
bootstrap service that accesses the TFTP server dynamically at server startup.
Type an IP address for the TFTP server. This field allows you to access multiple TFTP servers
using DHCP option 150. Option 150 is Cisco proprietary.
Chapter 8 LAN
Chapter
165
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