Once the object is modified it updates all menus where the object is being utilized with the updated information. The advantage of having an object based router is that if you make a network change all you would need to do is update the object entry, instead of going through each individual menu and updating rules. The user must go through all router menus where rules exist to change the IP setup. The downside to this type of setup is re-configuring the router rules if IP addresses on the devices (computer, NAS, etc.) are changed or if the routers network IP scheme is changed. Most routers allow you to type in the IP addresses and port numbers as you create your rules. The ZyWALL series routers are object based so objects for port numbers and device IP addresses will need to be created before you do anything else. USG1900 – running firmware version 4.20 and newer Creating Objects USG1100 – running firmware version 4.20 and newer USG310 – running firmware version 4.20 and newer USG210 – running firmware version 4.20 and newer USG110 – running firmware version 4.20 and newer USG60W – running firmware version 4.20 and newer USG60 – running firmware version 4.20 and newer USG40W – running firmware version 4.20 and newer USG40 – running firmware version 4.20 and newer ZyWALL 1100 – running firmware version 4.20 and newer ZyWALL 310 – running firmware version 4.20 and newer ZyWALL 110 – running firmware version 4.20 and newer NAT is used to make computers on a private network available to the outside world by using ports to forward packets to the appropriate private IP address. NAT (Network Address Translation – RFC 1631) is the translation of the IP address of a host in a packet.
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