HOW TO CONFIGURE STATIC ROUTING ON LINKSYS ROUTER

If the outbound interface state of a static route goes Down, the static route will be deleted from the IP routing table, but its configuration still exists.
http://www.thunder-link.com/LS-S6700-24-EI_p785.html

A routing loop is a condition in which a packet is continuously transmitted within a series of routers without ever reaching its intended destination network. A routing loop can occur when two or more routers have routing information that incorrectly indicates that a valid path to an unreachable destination exists.
The loop may be a result of:
Incorrectly configured static routes
Incorrectly configured route redistribution (redistribution is a process of handing the routing information from one routing protocol to another routing protocol and is discussed in CCNP-level courses)
Inconsistent routing tables not being updated due to slow convergence in a changing network
Incorrectly configured or installed discard routes

Use the Sonicwall configuration wizard..

Please find below is to configure what ever you want.

Setup Wizard - This wizard will help you quickly configure the SonicWALL to secure your Internet connection. Once completed, you can use the SonicWALL Web Management Interface for additional configuration.

Registration & License Wizard - This wizard will help you register you and your firewall with mysonicwall.com and obtain licenses for additional Security Services features.

PortShield Interface Wizard - Segment and configure the integrated managed LAN switch of the SonicWALL.

Public Server Wizard - Quickly configure your SonicWALL to provide public access to an internal server.

VPN Wizard - Create a new site-to-site VPN Policy or configure the WAN GroupVPN to accept connections from the SonicWALL Global VPN Client
Thanks
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netsh [-a AliasFile] [-c Context] [-r RemoteMachine] [Command | -f ScriptFile]

? Displays a list of commands. add Adds a configuration entry to a list of entries.

add helper Installs a helper DLL. delete Deletes a configuration entry from a list of entries.

delete helper Deletes a helper DLL. dump Displays a configuration script. exec Runs a script file. help Displays a list of commands. interface Changes to the `interface' context.

ip Changes the 'interface ip' context. ras Changes to the `ras' context.

aaaa Changes to the `ras aaaa' context. appletalk Changes to the `ras appletalk' context. ip Changes the 'ras ip' context. ipx Changes to the `ras ipx' context. netbeui Changes to the `ras netbeui' context. routing Changes to the `routing' context.

ip Change to the 'routing ip' context. ipx Changes to the `routing ipx' context. set Updates configuration settings.

machine Sets the current machine on which to operate. show Displays information.

show alias Lists all defined aliases. show helper Lists all the top-level helpers.
Available commands after you have entered the netsh command (typing netsh at the prompt and pressing enter).
.. Goes up one context level. ? Displays a list of commands. abort Discards changes made while in offline mode. add Adds a configuration entry to a list of entries. alias Adds an alias. bye Exits the program. commit Commits changes made while in offline mode. delete Deletes a configuration entry from a list of entries. dump Displays a configuration script. exec Runs a script file. exit Exits the program. help Displays a list of commands. interface Changes to the `interface' context. offline Sets the current mode to offline. online Sets the current mode to online. popd Pops a context from the stack. pushd Pushes current context on stack. quit Exits the program. ras Changes to the `ras' context. routing Changes to the `routing' context. set Updates configuration settings. show Displays information. unalias Deletes an alias. Examples
netsh Enter the netsh command. netsh dump Dump all the network information as a script to the screen. Can also be sent to a file by doing netsh dump > file.txt . This script can then be executed using the exec command. set address name="Local Area Connection" source=dhcp Set the "Local Area Connection" to DHCP. set address local static 10.0.0.9 255.0.0.0 10.0.0.1 1 Set the local address to Static. netsh interface ip show config View network ip configuration. Below is an example of what may be seen. Configuration for interface "Local Area Connection"
DHCP enabled: Yes
InterfaceMetric: 1
DNS servers configured through DHCP
WINS servers configured through DHCP