User's Manual Part 2

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1. Gateway must be on the same IP net segment as device's
LAN/WAN IP address.
2. Subnet Mask must be entered 255.255.255.255 if destination IP
address is a host.
3. Subnet Mask must be entered accordingly if destination IP
address represents an IP network segment. It must correspond
to the specified IP address. For example, for IP address of
10.0.0.0, you may enter a subnet mask of 255.0.0.0.
6.6 Routing Table
This page displays the device core routing table which lists
destination IP, subnet mask, gateway, hop count and interface.
The principal task for a router is to look for an optimal transfer path
for each data packet passing through it, and transfer it to the
specified destination. To complete this work, the router stores
and maintains related data of various transfer paths, i.e.
establishing a routing table, for future route selection.