Cisco D9858 Installation And Configuration Manual page 257

d In the Gateway Address field, enter the IP address on the Network, used to
expose the transcoder to a WAN. The following table shows the most
commonly used Subnet mask values to enter for a chosen IP address mask,
which will depend on the size of your network.
Mask Subnet Mask
8 255.0.0.0
16 255.255.0.0
24 255.255.255.0
e Check the Port 1 and/or Port 2 check box. The management port is port 1
and the data port is port 2.
f Click Save. The routing information is displayed in the Installed Unicast
Routes table. If the configured routing information has an inactive port, then
the routing information is not displayed in the Installed Unicast Routes
table.
Configuring System Settings
235