Cradlepoint COR IBR350 Manual page 59

NOTE: The final number does not have to be 1, but it is a simple, logical convention for routers that leaves higher numbers free for other devices.
Netmask: (Default: 255.255.255.0) The netmask controls how many IP addresses can be used in this network. The default value allows for 254 IP
addresses.
IPv4 Routing Mode: (Default: NAT) Each network can use a unique routing mode to connect to the Internet and other local networks. NAT is
desirable for most configurations. Select from the following options in the dropdown list:
• NAT: Network Address Translation hides private IP addresses behind the router's IP address. This is the simplest and most common choice
for users, because NAT does the translation work for you.
• Standard: NAT-less routing. If you select Standard, you must separately configure your IP addresses so that they will be publically accessible.
Typically you will not select this option unless you have a specific reason to bypass NAT.
• IP Passthrough: IP Passthrough passes the IP address given by a cellular modem (WAN) through the router to Ethernet (LAN). All Ethernet
ports must be in LAN mode (or disabled) and Hotspot, VPN, and GRE must be disabled. Any wireless interfaces must be removed from this
network in order to enable IP Passthrough. The easiest way to enable IP Passthrough mode is with the IP Passthrough Setup Wizard (see
Getting Started > IP Passthrough Setup).
• Disabled: Disable this network.
IPv6 Settings IPv6 must be enabled through the WAN initially: go to Internet > Connection Manager to enable IPv6.
IPv6 Address Source: By default, this is set to Delegated, which means the IPv6 address range for the LAN is passed through from the WAN side.
Change this to Static to input your own IPv6 address range here, or select None to explicitly disable IPv6 LAN connectivity.
Interfaces Select network interfaces to attach to this network. Choose from WiFi, Ethernet ports, and VLAN interfaces. Double-click on any of
the interfaces shown on the left in the Available section to move them to the Selected section on the right (or highlight an interface and click the
"+" button). To deselect an interface, double-click on an interface in the Selected section (or highlight the interface and click the "–" button).
If you want more interface options, you must configure additional WiFi, Ethernet ports, and VLAN interfaces separately. See the Local Network
Interfaces section below (on this same administration page: Network Settings > WiFi / Local Networks).
Access Control Tune the access control settings of this network to match the intended use. Simply select or deselect any of the following:
• LAN Isolation: When checked, this network will NOT be allowed to communicate with other local networks.
• UPnP Gateway: Select the UPnP (Universal Plug and Play) option if you want to enable the UPnP Gateway service for computers on this
network.
• Admin Access: When enabled, users may access these administration pages on this network.
IPv4 DHCP Changing settings for the IPv4 DHCP server is optional. The default selections are almost always sufficient.
DHCP Server: (Default: Enabled) When the DHCP server is enabled, users of your network will be able to automatically connect to the Internet
without any special configuration. It is recommended that you leave this enabled. Disabling the DHCP server is only recommended if you have
another DHCP server on your network and it is configured properly.
Range Start and Range End: These designate the range of values in the reserved pool of IP addresses for the DHCP server. Values within this
range will be given to any DHCP enabled computers on your network. The default values are almost always sufficient (default: 72 to 200, as in
192.168.0.72 to 192.168.0.200).
Example: The router uses an IP address of 192.168.0.1 for its primary network by default. A computer designated as a Web server has a static IP
address of 192.168.0.3. Another computer is designated as an FTP server with a static IP address of 192.168.0.4. The starting IP address for the
DHCP server needs to be 192.168.0.5 or higher.
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