User guide

Advanced Router Settings

Verizon 4G LTE Broadband Router

2. From the main menu, select Router Settings > Advanced > Firewall > Miscellaneous.

3. S

pecify the following settings:

• Disable Port Scans and DoS Protections: This

is cleared, letting the firewall protect

your LAN against port scans and denial of service attacks. Select this check box only

in special circumstances.

• Default DMZ Server: This fea

ture is sometimes helpful when you are using some

online games and videoconferencing. Using this feature makes the firewall security

less effective. See Set Up a Default DMZ Server on page 69.

• Respond to Ping on Internet: Let

s your router respond to a ping from the Internet.

This feature should be used only as a diagnostic tool, because it lets your router be

discovered.

•MTU Size: Maximum transmit

unit (MTU) value. For most Ethernet networks, this

setting is:

• 1500

bytes;

• 1492

bytes for PPPoE connections; or

• 1436

bytes for PPTP connections.

• NAT Filtering: This p

arameter is set to Secured to provide a secure firewall,

protecting computers on the LAN from attacks. The Open setting is less secure.

• Disable SIP ALG: Some V

oice over IP(VoIP) applications do not work well with

Session Initiation Protocol Application-level gateway (SIP ALG). Selecting this might

help your VoIP devices create or accept a call through the router.

4. Click Apply.