Viper SC+™ IP Router for Licensed Spectrum PN 001-5008-000 Rev. C
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LAN IP Address
Allows each Viper to be set to a unique valid IP address. The default IP address for the Viper LAN port is
192.168.205.1.
LAN Netmask
Together with the LAN IP Address, the LAN netmask determines the subnet the Viper is on. The netmask selected
depends on the network topology. The default LAN netmask is 255.255.255.0.
LAN MAC Address
The Media Access Control (MAC) address is a unique address that a manufacturer assigns to each networking
device. The MAC address is expressed as six hexadecimal numbers separated by colons in a format similar to
AA:BB:CC:DD:EE:FF, for example.
LAN Gateway
This is the IP Address of the Access Point to be used as the gateway to the management network. If the Viper is the
Access Point, do not change the LAN Gateway from the default address. The default address is 0.0.0.0.
For each Viper network, one and only one Access Point may be defined. This is the Default Gateway (for WAN
access). Remote Vipers use the RF IP address of the Viper that is set up to be the Access Point in the network, as
long as that Access Point is in the neighbor table. Once it scans and finds an Access Point, the Viper will then fill in
the LAN Gateway automatically as that Access Point’s RF IP address. There is normally never any reason to change
the LAN Gateway address, as the Viper does this for you whenever you perform a scan on the network or statically
add an Access Point Viper to the neighbor table.
LAN MTU
The Maximum Transfer Unit (MTU) is the maximum number of bytes the unit will send in a packet. Acceptable
values range from 576 to 1500. The default value is 1500.
Maintenance Settings
The maintenance IP interface allows access to the device from a host on the LAN only. All devices on the same network
will be typically given the same maintenance IP address and netmask so that a technician can move from one device to
the other and access them using the same IP address.
Virtual 1 to 5
Virtual IP interfaces can only be configured in router mode.
Default gateway: Usually one default gateway is configured. The user can select to set the default gateway on the
LAN interface, on one of the virtual IP interfaces or the RF interface if the device is operating in router mode.
Multiple gateway can be set if the device is operating in router mode with VLAN enabled, the device will then
operate in VRF mode (Virtual Route Forwarding).
VRF mode: This mode is on when router mode and VLAN mode are active. Each IP packet will be forwarded inside
the Viper network with their original VLAN tag. When it comes time to select a default route for a packet,
preference will be given to the gateway that is on the interface with the same VLAN tag (PVID).To activate a
maintenance or virtual IP, click the
Enable
box in the given row and configure each address as described below:
IP Address
Enter a maintenance IP address that is different from the LAN IP Address. The default maintenance IP address is
1.1.1.1.