TRENDnet TW-H6W1IR - Manual (Page 50)

TW-H6W1IR ISDN Remote Router
42 Configuration and
Management
branch office router. This configuration assumes there is a modem on
ISDN2 maintaining a dial-up connection to the branch office.
IP Networking
Under the IP Configuration sub-menu, the IP Networking function can
toggle to connect/disconnect this router from the entire IP network.
When IP Networking is disabled, all routing functions are stopped. The
only IP Address the router will act on is its own, via Telnet for example.
Router Advertisement
When this option is enabled, the router will periodically send out ICMP
packets that announce itself on the network. These ICMP packets are
utilized by the Windows 98 or later operating system, which will
automatically update the default gateway setting on the computer in
which it is installed.