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12.4
General Firewall Screen
Use this screen to enable or disable the NBG-416N’s firewall, and set up firewall
logs. Click
Security
>
Firewall
to open the
General
screen.
Figure 65
Security > Firewall > General
The following table describes the labels in this screen.
12.5
Services Screen
Use the
Services
screen to enable or disable ICMP and VPN passthrough features.
Click
Security
>
Firewall
>
Services
. The screen appears as shown next.
Figure 66
Security > Firewall > Services
Table 43
Security > Firewall > General
LABEL
DESCRIPTION
Enable Firewall
Select this check box to activate the firewall. The NBG-416N performs
access control and protects against Denial of Service (DoS) attacks
when the firewall is activated.
Apply
Click
Apply
to save the settings.
Reset
Click
Reset
to start configuring this screen again.
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The following table describes the labels in this screen.
Table 44
Security > Firewall > Services
LABEL
DESCRIPTION
ICMP
Internet Control Message Protocol is a message control and error-
reporting protocol between a host server and a gateway to the Internet.
ICMP uses Internet Protocol (IP) datagrams, but the messages are
processed by the TCP/IP software and directly apparent to the
application user.
Respond to Ping
on WAN
The NBG-416N will not respond to any incoming Ping requests when
Disable
is selected.
Select
Enable
to reply to incoming WAN Ping
requests.
VPN
Passthrough
Select the checkbox to enable the advanced pass through features:
•
PPTP Passthrough:
Select this option to allow the NBG-416N to
pass through VPN traffic using PPTP.
•
L2TP Passthrough:
Select this option to enable computers on your
LAN to make L2TP VPN connections to servers on the Internet.
•
IPSEC Passthrough:
Select this option to allow the NBG-416N to
pass through VPN traffic using the IPsec protocol.
Apply
Click
Apply
to save the settings.
Reset
Click
Reset
to start configuring this screen again.
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113
C
HAPTER
13
Remote Management
13.1
Overview
This chapter provides information on the
Remote Management
screens.
Remote management allows you to determine which services/protocols can access
which NBG-416N interface (if any) from which computers.
You may manage your NBG-416N from a remote location via:
Note: When you configure remote management to allow management from the LAN
and WAN in the options above, you still need to configure a firewall rule to allow
access. See the firewall chapters for details on configuring firewall rules.
13.2
What You Need To Know
•
LAN only
•
LAN and WAN
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13.2.1
Remote Management Limitations
Remote management over LAN or WAN will not work when:
1
You have disabled that service in one of the remote management screens.
2
The IP address in the
Secured Client IP Address
field does not match the client
IP address. If it does not match, the NBG-416N will disconnect the session
immediately.
3
There is already another remote management session with an equal or higher
priority running. You may only have one remote management session running at
one time.
4
There is a firewall rule that blocks it.
13.2.2
Remote Management and NAT
When NAT is enabled:
•
Use the NBG-416N’s WAN IP address when configuring from the WAN.
•
Use the NBG-416N’s LAN IP address when configuring from the LAN.
13.2.3
System Timeout
There is a default system management idle timeout of five minutes (three
hundred seconds). The NBG-416N automatically logs you out if the management
session remains idle for longer than this timeout period. The management session
does not time out when a statistics screen is polling. You can change the timeout
period in the
System
screen.
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13.3
WWW Screen
To change your NBG-416N’s World Wide Web settings, click
Management
>
Remote MGMT
to display the
WWW
screen.
Figure 67
Management > Remote MGMT > WWW
The following table describes the labels in this screen.
Table 45
Management > Remote MGMT > WWW
LABEL
DESCRIPTION
Server Port
You may change the server port number for a service if needed,
however you must use the same port number in order to use that
service for remote management.
Server Access
Select the interface(s) through which a computer may access the
NBG-416N using this service.
Secured Client IP
Address
A secured client is a “trusted” computer that is allowed to
communicate with the NBG-416N using this service.
Select
All
to allow any computer to access the NBG-416N using
this service.
Choose
Selected
to just allow the computer with the IP address
that you specify to access the NBG-416N using this service.
Note: This only applies on WAN IP.
Apply
Click
Apply
to save your customized settings and exit this screen.
Reset
Click
Reset
to begin configuring this screen afresh.
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