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T-Mobile TM-G5240 Wireless Router User Manual 
Version 0.7 041807 
38
Home > WAN > PPPoE 
At 
Home > WAN > PPPoE
, you can adjust: 
• 
PPPoE
– Point to Point Protocol over Ethernet. Choose this option if your 
ISP uses PPPoE connection (Most DSL users will select this option.) Your 
ISP provider will provide you with a username and pasword. This option is 
typically used for DSL services. 
Please be sure to remove any existing PPPoE client software installed 
your computers.
o 
Dynamic PPPoE- 
Select to receive an IP Address automatically from 
your ISP. 
o 
Static PPPoE
- Select to receive an assigned (static) IP Address. 
• 
User Name
- Your PPPoE username provided by your ISP. 
• 
Retype Password
- Re-enter the PPPoE password 
• 
Service Name
- Enter the Service Name provided by your ISP (optional). 
• 
IP Address
- This option is only available for Static PPPoE. Enter the static 
IP Address for the PPPoE connection. 
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T-Mobile TM-G5240 Wireless Router User Manual 
Version 0.7 041807 
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• 
Primary DNS Address
- Primary DNS IP address provided by our ISP 
• 
Secondary DNS Address
- This option is only available for Static PPPoE. 
Enter the static IP Address for the PPPoE connection. 
• 
Maximum Idle Time
- Enter a maximum idle time during which Internet 
connection is maintained during inactivity. 
• 
MTU - 
Maximum Transmission Unit - Default is 1492; you may need to 
change the MTU to conform to your ISP (Internet Service Provider). 
• 
Auto-reconnect
- If enabled, the TM-G5240 will automatically connect to 
your ISP after your system is restarted or if the PPPoE connection is 
dropped. 
• 
Connect Mode 
Always On –
Connection is always on 
Manual –
User manually starts connection 
Connect on Demand –
Connection is established once the browser is 
activated 
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T-Mobile TM-G5240 Wireless Router User Manual 
Version 0.7 041807 
40
Home > LAN
LAN is short for Local Area Network. This is considered your internal network. These are 
the IP settings of the LAN interface for the TM-G5240. These settings may be referred to 
as Private settings. You may change the LAN IP address if needed. The LAN IP address 
is private to your internal network and cannot be seen on the Internet. 
At the 
Home > LAN
tab, you can adjust: 
• 
IP Address
- The IP address of the LAN interface. The default IP address is: 
192.168.0.1
. 
• 
Subnet Mask
- The subnet mask of the LAN interface. The default subnet mask is 
255.255.255.0
. 
• 
Local Domain
- This field is optional. Enter in the local domain name. 
• 
DNS Relay 
- You may choose to enable or disable DNS Relay. If disabled, the 
DNS address received on the Internet Port will pass through to the LAN clients. 
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T-Mobile TM-G5240 Wireless Router User Manual 
Version 0.7 041807 
41
Home > DHCP
DHCP stands for 
Dynamic Host Control Protocol
. The TM-G5240 has a built-in DHCP 
server. The DHCP Server will automatically assign an IP address to the computers on the 
LAN/private network. Be sure to set your computers to be DHCP clients by setting their 
TCP/IP settings to “Obtain an IP Address Automatically.” When you turn your computers 
on, they will automatically load the proper TCP/IP settings provided by the TM-G5240. 
The DHCP Server will automatically allocate an unused IP address from the IP address 
pool to the requesting computer. You must specify the starting and ending address of the 
IP address pool.
At the 
Home > DHCP
tab, you can adjust: 
• 
DHCP Server
- Select Enabled or Disabled. The default setting is Enabled. 
• 
Starting IP Address
- The starting IP address for the DHCP server’s IP 
assignment. 
• 
Ending IP Address
- The ending IP address for the DHCP server’s IP assignment. 
• 
Lease Time
- The length of time for the IP address lease. Enter the Lease time. 
The default setting is one hour. 
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T-Mobile TM-G5240 Wireless Router User Manual 
Version 0.7 041807 
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• 
Static DHCP -
Used to allow the DHCP server to assign the same IP address to a 
specified MAC address. Enter the name, IP address, and MAC address into the 
fields. Select which DHCP client to clone. 
• 
Host Name –
The name to be used to reference the specific static DHCP client. 
• 
DHCP Client -
Drop down list of all currently connected DHCP clients. 
Home > Bridge Mode
Enable bridge mode will turn off routing and NAT (Network Address Translation) features. 
TM-G5240 will act similar to a switch instead of router. TM-G5240 will not be able to 
share one public IP to multiple LAN devices in bridge mode. 
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