# LAN Settings

## LAN

### LAN Port

Ethernet LAN Port can be physically disabled using this switch

### LAN IP Address

Set to a valid unique IP address for each individual unit (default: 192.168.205.1).

### LAN Netmask

Set to a valid IP Netmask for each individual unit (depends on customer's IP network topology, default: 255.255.255.0).

### LAN Gateway

The LAN Gateway (default: 0.0.0.0) allows the user to enter in the IP address of the device where the Viper must send the IP packets when no specific IP routes exists.

### LAN MAC Address

The MAC address (media access control) is the unique address that a manufacturer assigns to each networking device. AA:BB:CC:DD:EE:FF

### LAN MTU

Maximum Transfer Unit (default: 1500 bytes). The MTU is the maximum number of bytes the unit will send in a packet. The input range is from 576 to 1500.

## Maintenance Settings

### Maintenance

The maintenance IP interface is used to give access to the device from a host on the LAN only. All device 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).

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