Dell SonicWALL GX250 Manual

SonicWALL Internet Security Appliance Guide Page 103Click Update. Once the SonicWALL has been updated, a message confirming theupdate is displayed at the bottom of the Web browser window. Restart the SonicWALLfor the change to take effect.Note: The SonicWALL can support up to 64 static route entries.DMZ AddressesThe SonicWALL provides security by preventing Internet users from accessingmachines on the LAN. This security, however, also prevents users from reaching publicservers, such as Web or E-mail servers.The SonicWALL offers a special DMZ ("Demilitarized Zone") port that provides Internetaccess to network servers. The DMZ sits between the local network and the Internet.Servers on the DMZ are publicly accessible, but they are protected from attacks suchas SYN Flood and Ping of Death. Use of the DMZ port is optional.Using the DMZ is a strongly recommended alternative to placing servers on the WANport where they are not protected or establishing Public LAN servers.Click Advanced on the left side of the browser window, and then click the DMZAddresses tab at the top of the window.Servers on the DMZ need unique, valid IP addresses in the same subnet as theSonicWALL WAN IP Address. Your ISP should be able to provide these IP addresses,as well as information on setting up public servers.