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ProSAFE Gigabit Quad WAN SSL VPN Firewall SRX5308
View the Attached Devices
To view the attached devices on the LAN Groups screen:
Select
Network Configuration > LAN Settings > LAN Groups
. The LAN Groups screen
displays. (The following figure shows some examples in the Known PCs and Devices table.)
Figure 253.
The Known PCs and Devices table contains a list of all known computers and network
devices that are assigned dynamic IP addresses by the VPN firewall, have been discovered
by other means, or were manually added. Collectively, these entries make up the network
database. For information about how to edit the Known PCs and Devices table or manually
add entries to the table, see
Manage the Network Database
on page
97.
For each attached computer or device, the Known PCs and Devices table displays the
following fields:
•
Check box
.
Allows you to select the computer or device in the table.
•
Name
. The name of the computer or device. For computers that do not support the
NetBIOS protocol, the name is displayed as
Unknown
(you can edit the entry manually to
add a meaningful name). If the computer or device was assigned an IP address by the
DHCP server, the name is appended by an asterisk.
•
IP Address
. The current IP address of the computer or device. For DHCP clients of the
VPN firewall, this IP address does not change. If a computer or device is assigned a static
IP address, you need to update this entry manually after the IP address on the computer
or device has changed.
•
MAC Address
. The MAC address of the computer’s or device’s network interface.
•
Group
. Each computer or device can be assigned to a single LAN group. By default, a
computer or device is assigned to Group 1. You can select a different LAN group from the
Group drop-down list in the Add Known PCs and Devices section or on the Edit Groups
and Hosts screen.
•
Action
. The Edit table button, which provides access to the Edit Groups and Hosts
screen.
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Note:
If the VPN firewall is rebooted, the data in the Known PCs and
Devices table is lost until the VPN firewall rediscovers the devices.
View the DHCP Log
To review the most recent entries in the DHCP log:
1.
Select
Network Configuration > LAN Settings
. The LAN Setup screen displays the
IPv4 settings. (see
Figure
51
on page
88).
2.
Click the
DHCP Log
option arrow
to the right of the LAN Setup tab. The DHCP Log screen
displays:
Figure 254.
To view the most recent entries, click
Refresh Log
. To delete all the existing log entries,
click
Clear Log
. Click the
LAN Setup
option arrow in the upper right to display the LAN
Setup screen for IPv4, from which you can modify the DHCP settings (see
Configure a
VLAN Profile
on page
88).
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Diagnostics Utilities
•
Send a Ping Packet
•
Trace a Route
•
Look Up a DNS Address
•
Display the Routing Tables
•
Capture Packets in Real Time
•
Reboot the VPN Firewall Remotely
The VPN firewall provides diagnostic tools that help you analyze the status of the network
and traffic conditions. Two types of tools are available:
•
Network diagnostic tools
. These tools include a ping utility, traceroute utility, and DNS
lookup utility, and the option to display the routing tables.
•
Packet capture tool
. This tool lets you capture packets per interface in real time for a
short period, and download the packet information.
Note:
For normal operation, diagnostic tools are not required.
To display the Diagnostics screen:
1.
Select
Monitoring > Diagnostics
. The Diagnostics screen displays the IPv4 settings (see
the next figure).
2.
Specify the IP version for which you want to display the Diagnostics screen:
•
IPv4
. In the upper right of the screen, the IPv4 radio button is already selected by
default.
Figure 255.
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•
IPv6
. Select the
IPv6
radio button. The Diagnostics screen displays the IPv6 settings:
Figure 256.
The various tasks that you can perform on the Diagnostics screen are described in the
following sections.
Send a Ping Packet
Use the ping utility to send a ping packet request in order to check the connection between
the VPN firewall and a specific IP address or FQDN. If the request times out (no reply is
received), it usually means that the destination is unreachable. However, some network
devices can be configured not to respond to a ping. The ping results are displayed on a new
screen.
To send a ping:
1.
On the Diagnostics screen for IPv4, in the IP Address / Domain Name field of the Ping
or Trace an IP Address section, enter the IP address or domain name that you want to
ping; on the Diagnostics screen for IPv6, in the Domain Name field, enter the domain
name that you want to ping (you cannot enter an IP address).
2.
Do one of the following:
•
Make sure that the
Ping through VPN tunnel?
check box is cleared, and select a
gateway from the Select Local Gateway drop-down list. (The Select VPN Policy
drop-down list is masked out.)
•
Select the
Ping through VPN tunnel?
check box, and select a VPN policy from the
Select VPN Policy drop-down list. (The Select Local Gateway drop-down list is
masked out.)
3.
Click the
Ping
button. The results of the ping are displayed in a new screen. To return to the
Diagnostics screen, click
Back
on the browser menu bar.
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Trace a Route
A traceroute lists all routers between the source (the VPN firewall) and the destination IP
address.
To send a traceroute:
1.
On the Diagnostics screen for IPv4, in the IP Address / Domain Name field of the Ping
or Trace an IP Address section, enter the IP address or domain name that you want to
trace; on the Diagnostics screen for IPv6, in the Domain Name field, enter the domain
name that you want to trace (you cannot enter an IP address).
2.
Do one of the following:
•
Make sure that the
Ping through VPN tunnel?
check box is cleared, and select a
gateway from the Select Local Gateway drop-down list. (The Select VPN Policy
drop-down list is masked out.)
•
Select the
Ping through VPN tunnel?
check box, and select a VPN policy from the
Select VPN Policy drop-down list. (The Select Local Gateway drop-down list is
masked out.)
3.
Click the
Traceroute
button. The results of the traceroute are displayed in a new screen.
4.
To return to the Diagnostics screen, click
Back
on the browser menu bar.
Look Up a DNS Address
A Domain Name Server (DNS) converts the Internet name (for example, www.netgear.com)
to an IP address. If you need the IP address of a web, FTP, mail, or other server on the
Internet, request a DNS lookup to find the IP address.
To look up a DNS address:
1.
In the Perform a DNS Lookup section of the screen, in the Internet Name field, enter a
domain name.
2.
Click the
Lookup
button. The results of the lookup action are displayed in a new screen. To
return to the Diagnostics screen, click
Back
on the browser menu bar.
Display the Routing Tables
Displaying the internal routing table can assist NETGEAR technical support in diagnosing
routing problems.
To display the routing table:
On the Diagnostics screen for IPv4, in the Router Options section of the screen, click the
Display
button next to Display the IPv4 Routing Table. The routing table is shown in the
Route Display pop-up screen.
On the Diagnostics screen for IPv6, in the Router Options section of the screen, click the
Display
button next to Display the IPv6 Routing Table. The routing table is shown in the
Route Display pop-up screen.

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