Ubee Interactive

Using the DHCP Option

Ubee DVW3201B Advanced Wireless Voice Gateway Subscriber User Guide

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July 2012

37

5.3

Using the DHCP Option

The dynamic host configuration protocol (DHCP) option allows you to configure DHCP-

specific behavior on the device.

Steps

To configure DHCP settings:

1.

Click the

Gateway

link from the top of the screen.

2. Click

DHCP

from the left side of the screen. The

DHCP

fields are explained following

this screen example.

Label

Description

IP Address

Displays the IPv6 address of the connected device.

MAC Address

Displays the MAC address of the connected device.

Reachability State

Displays the status of the neighboring device. Reachable

indicates the device can be contacted and configuration

information can be obtained from the device.

Using the DHCP Option

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Ubee DVW3201B Advanced Wireless Voice Gateway Subscriber User Guide

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July 2012

Label

Description

DHCP Server

Enables (Yes) or disables (No) DHCP on the device. If No is

selected, all the static DHCP rules in this screen are ignored.

Private Starting Address

Defines the starting private IP address for the pool of IP

addresses that can be used by connecting clients. Private

addresses are translated to public IPs to be used on the

network.

Public Starting Address

Defines the starting public IP address. Public addresses can

be recognized on the network.

Number of CPEs

Defines the maximum number of customer premises

equipment (CPE) that can connect to the network through the

DVW3201B.

Lease Time

Defines the DHCP lease time duration in minutes between 1

and 71582788. A DHCP user's PC gets an IP address with a

lease time. When the lease time expires, the PC must connect

to the DHCP server and be issued a new unused IP address.

Note:

The default DHCP lease time is 3600 seconds and

should be changed to

86400

seconds (24 hours). This helps

resolve connectivity issues with some iMAC and Windows 7

devices that turn off the network interface when they go into

standby mode. This results in slow Web browsing until the

device gets a new IP address via DHCP.

Ubee Interactive

Using the DHCP Static Lease Option

Ubee DVW3201B Advanced Wireless Voice Gateway Subscriber User Guide

•

July 2012

39

5.4

Using the DHCP Static Lease Option

You can use the

Static Lease

option to assign IP addresses to clients on your network

that do not change. A static lease ensures a specific device always gets the same IP

address, especially if devices are powered on and off or disconnected and reconnected.

This may be useful in a variety of networking scenarios where you need more control over

the network and the clients that connect to it. Examples in which you may need to use a

static lease include:



Using the Advanced Gateway Setup IP Filtering Option on page 45



Using the Advanced Gateway Setup Port Filtering Option on page 46



Using the Advanced Gateway Settings DMZ Host Option on page 54

Steps

To assign static IP addresses:

1.

Click the

Gateway

link from the top of the screen.

2. Click

Static Lease

from the left side of the screen. The

Static Lease

fields are

explained following this screen example.

Note:

The following example shows the DHCP Static Lease option set up for a dual

Xbox configuration.

Apply

Applies and saves all changes when clicked.

DHCP Clients

Lists all DHCP clients currently connected to the device, either

via an Ethernet link, or via a wireless connection. Each client

is listed with the following information:



MAC Address / IP Address / Subnet Mask



Duration / Expires: Duration displays the accumulated

time since the client acquired the IP address. Expires is

the time until the IP expires and must be recycled. If the

IP address is reserved to a certain host, it shows STATIC

IP ADDRESS.



Select: Reserves the current private IP address to be

assigned to this host statically when selected.

Force Available

Activates a selected rule in the DHCP Clients list and assigns

IP addresses. Note: The Select button must be activated in the

DHCP list.

Label

Description

Using the Time Option

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Ubee DVW3201B Advanced Wireless Voice Gateway Subscriber User Guide

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July 2012

5.5

Using the Time Option

The

Time

option allows you to configure the system time obtained from network servers

via Simple Network Time Protocol (SNTP).SNTP is a protocol for synchronizing the clocks

of computing devices over networks. The device must be reset for changes to take effect.

Steps

To configure system time:

1.

Click the

Gateway

link from the top of the screen.

2. Click

Time

from the left side of the screen. The

Time

fields are explained following

this screen example.

Label

Description

Index

Provides an index number for each client that connects to your

network.

MAC Address

Defines the MAC address of the client to which you want to

assign a static IP address.

IP Address

Defines an IP address to the specific client/host.

Enabled

Activates this rule when Enable is checked.

Clear

Deletes the rule when Clear is checked.

Apply

Saves all screen changes when clicked.

Ubee Interactive

Using the Advanced Gateway Setup Options

Ubee DVW3201B Advanced Wireless Voice Gateway Subscriber User Guide

•

July 2012

41

5.6

Using the Advanced Gateway Setup Options

The

Options

selection

allows you to define what networking protocols are enabled or

disabled on the device. The network address translation application-level gateway (NAT

ALG) settings provide additional security beyond the firewall.

Steps

To enable or disable network protocols:

1.

Click the

Gateway

link from the top of the screen.

2. Click

Options

from the left side of the screen. The

Options

fields are explained

following this screen example.

Label

Description

Enable SNTP

Enables (Yes) or disables (No) the SNTP feature.

Current Time

Displays the current system time.

System Start Time

Displays the accumulated time since the system was started.

Time Server 1

Defines the IP address or Domain name of the time server.

Use the one provided or enter an alternative choice.

Time Server 2

Defines the IP address or Domain name of the time server.

Use the one provided or enter an alternative choice.

Time Server 3

Defines the IP address or Domain name of the time server.

Use the one provided or enter an alternative choice.

Time Zone Offset

Defines the time zone offset in hours and minutes from

Greenwich MEan Time. For example: 8 hours means GMT

+8, -1 hour means GMT -1.

Apply

Saves all screen changes when clicked.

Reset Values

Resets the screen to factory defaults when clicked.