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Chapter 4
to configure the Device IP Address and Subnet Mask
settings.)
Subnet-4
The subnet numbers are created according
•
to the VLAN numbers. (The multiple subnets can also
be configured on the Setup > Network screen.)
IP Address
Enter an IP address.
•
Subnet Mask
Select the appropriate subnet mask.
•
Dynamc IP Range
When the IP Address and Subnet
Mask settings are configured, the range of IP addresses
is displayed. You can change the range of IP addresses
as long as the total number of IP addresses assigned by
DHCP is 253. The greater the number of multiple subnets,
the fewer the number of IP addresses assigned by DHCP.
NOTE:
The Router's built-in DHCP server can
assign up to 253 IP addresses.
Click Save Settngs to save your changes, or click Cancel
Changes to undo them.
DHCP > Inter-VLAN Routing
To route packets between different VLANs, enable the
Multiple VLANs option on the Multiple VLANs screen, and
then select the VLANs on the Inter-VLAN Routing screen.
DHCP > Inter-VLAN Routing
Inter-VLAN Routing
VLAN-4
Select the VLANs that can route packets to each
other. For example, if you select VLAN1 and VLAN2, then
packets can be routed between VLAN1 and VLAN2, but
packets cannot be routed between VLAN3 and VLAN4.
Click Save Settngs to save your changes, or click Cancel
Changes to undo them.
System Management > Diagnostic
The Router has two built-in tools, DNS Name Lookup
and Ping, which are used for troubleshooting network
problems.
4-Port SSL/IPSec VPN Router
Advanced Configuration
The Internet has a service called the Domain Name Service
(DNS), which allows users to enter an easily remembered
host name, such as www.linksys.com, instead of numerical
TCP/IP addresses to access Internet resources. The DNS
Name Lookup tool will return the numerical TCP/IP address
of a host name.
The Ping test bounces a packet off a machine on the
Internet back to the sender. This test shows if the Router
is able to contact the remote host. If users on the LAN
are having problems accessing services on the Internet,
try pinging the DNS server or other machine at the ISP's
location. If this test is successful, try pinging devices
outside the ISP. This will show if the problem lies with the
ISP's connection.
Diagnostic
DNS Name Lookup/Png
to use, DNS Name Lookup or Png. Then proceed to the
appropriate instructions.
DNS Name Lookup
Before using this tool, make sure the IP address of the DNS
server is entered on the Setup > Network screen; otherwise,
this tool will not work.
System Management > Diagnostic > DNS Name Lookup
Look up the name
Enter the host name, and click Go.
(Do not add the prefix http:// or else you will get an error
message.) The Router will then query the DNS server and
display the result at the bottom of the screen.
Ping
Before using this tool make sure you know the device or
host's IP address. If you do not know it, use the Router's
DNS Name Lookup tool to find the IP address.
Select which tool you want
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Table of Contents
Troubleshooting
