User guide

7-14 Removing an inter-office connection
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To return to the Update Configuration page (Figure 7-2) without saving
any changes to the inter-office connection configuration, click the Cancel
button.
Removing an inter-office connection
1. To remove an inter-office connection that is no longer needed, click on the
Inter-Office Connection/Remove button in the Update Configuration
page (Figure 7-2). The Internet connection is removed from the
configuration, and a Connection Deleted page opens.
2. Click OK to return to the Update Configuration page (Figure 7-2).
Changing your Ethernet IP address
When the router was connected and configured for the first time, an Ethernet
IP address was set up on the router that allowed for successful communication
between the PC and the router. We recommend not changing the Ethernet
connection configuration if the router and the PC connected to it are
communicating successfully. Changing this IP address could cause your
connections to fail. Read this section carefully before changing the DHCP
server status or the router’s Ethernet IP address. If you are unsure, contact your
network administrator.
There is a DHCP (Dynamic Host Configuration Protocol) server in the AR100
that you can enable or disable. The DHCP server provides configuration
information such as IP addresses, DNS addresses and gateway addresses to
devices on the network.
If the DHCP (Dynamic Host Configuration Protocol) server in the router is
enabled, then it allocates dynamic Ethernet IP addresses to devices on the LAN
including the router itself, and you cannot change these IP addresses unless
you disable the DHCP server. The IP address entered in this page determines
the range of IP addresses allocated by the router’s DHCP server.
Caution: If you must disable the DHCP server, you will need to reconfigure
all the other devices on the LAN that receive dynamic configuration from the
router’s DHCP server to use static IP addresses, or add another DHCP server
to the network.
If the router’s DHCP server is disabled, then the router’s Ethernet IP address is
determined by the IP address and mask you enter in the configuration.
Communication between the router and the PC you are using to configure it
depends on them having Ethernet IP addresses in the same IP subnetwork.
Caution: The router’s IP address should generally not be changed, as doing so
is likely to disrupt network communications. If you change the router’s IP
address to an address that is not in the same IP subnetwork as the PC, then
they will no longer be able to communicate with each other. Not only will the
router not be able to route data to and from the subnetwork that the PC is in,
the PC will no longer be able to use the web configuration tool on the router