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Advanced Router Settings
68
Verizon 4G LTE Broadband Router
2.
From the main menu, select
Router Settings > Advanced > Firewall > Miscellaneous
.
3.
Specify 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 feature 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
: Lets 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 parameter 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 Voice 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
.