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RUTX11 LAN

Summary #

The LAN page is used to to set up LAN network interfaces.

This manual page provides an overview of the LAN windows in RUTX11 devices.

If you’re having trouble finding this page or some of the parameters described here on your device’s WebUI, you should turn on “Advanced WebUI” mode. You can do that by clicking the “Basic” button under “Mode”, which is located at the top-right corner of the WebUI.

Networking rutx manual webui basic advanced mode v1.gif

LAN Configuration #

The LAN Configuration section displays LAN interfaces currently existing on this device.

Networking rutos manual lan settings v1.png

To begin configuring an interface, click the ‘Edit’ button on the right side of the interface:

Networking rutos manual lan begin to edit v1.png

General Setup #

The General Setup section is used to configure the main parameters of

Networking rutos manual lan configuration general setup v1.png
FieldValueDescription
IPv4 addressip4; default: 192.168.1.1The IPv4 address interface of this interface. An IP address identifies a device on a network and allows it to communicate with other devices.
IPv4 netmasknetmask; default: 255.255.255.0The IPv4 netmask of this interface. A netmask is used to define how “large” a network is by specifying which part of the IP address denotes the network and which part denotes a device.
DNS serversip4; default: noneDNS server addresses that this interface will use. If left empty, DNS servers are assigned automatically. To see what DNS servers are currently used, you can check the contents of the /tmp/resolv.conf.auto file.

Advanced Settings #

The Advanced Settings section is used to set up some of the more specific and less frequently used interface parameters.

Networking rutos manual lan configuration advanced settings v1.png
FieldValueDescription
Override MAC addressmac; default: noneWhen set, uses a user-defined MAC address for the interface.
Override MTUinteger [1..9200]; default: noneChanges the interface’s allowed maximum transmission unit (MTU) size. It is the largest size of a protocol data unit (PDU) that can be transmitted in a single network layer transaction.

DHCP Server #

DHCP (Dynamic Host Configuration Protocol) server is a service that can automatically configure the TCP/IP settings of any device that requests such a service. If you connect a device that has been configured to obtain an IP address automatically, the DHCP server will lease out an IP address from the available IP pool and the device will be able to communicate within the private network.

Networking rutx manual lan static dhcp server scheme v1.png

DHCP Server: General Setup #

The General Setup section is used to set up the main operating parameters of the DHCP server. 

FieldValueDescription
Enable DHCPEnable | Disable | DHCP Relay*; default: EnableTurns the DHCP server on or off or enables DHCP relay*.
If DHCP Relay* is selected, you will be prompted to enter an IP address of another DHCP server in your LAN. In this case, whenever a new machine connects to this device, it will redirect any DHCP requests to the specified DHCP Server.
Startinteger [1..255]; default: 100The starting IP address value. e.g., if your device’s LAN IP is 192.168.1.1 and your subnet mask is 255.255.255.0 that means that in your network a valid IP address has to be in the range of [192.168.1.0..192.168.1.254] (192.168.1.255 is a special unavailable address). If the Start value is set to 100 then the DHCP server will only lease out addresses starting from 192.168.1.100.
Limitinteger [1..255]; default: 150How many addresses the DHCP server can lease out. Continuing from the example above: if the start address is 192.168.1.100 and the server can lease out 150 addresses, available addresses will be from 192.168.1.100 to 192.168.1.249 (100 + 150 – 1 = 249; this is because the first address is inclusive).
Lease timeinteger [2..999999]; default: 12A DHCP lease will expire after the amount of time specified in this field and the device that was using the lease will have to request a new one. However, if the device stays connected, its lease will be renewed after half of the specified amount of time passes (e.g., if lease time is 12 hours, then every 6 hours the device will ask the DHCP server to renew its lease).
The minimal amount of time that can be specified is 2 minutes.
UnitsHours | Minutes; default: HoursLease time measurement units.

* When an interface is set to act as a DHCP Relay, it redirects all received DHCP request messages to another specified DHCP server:

Networking rutx manual lan static dhcp server relay scheme v2.png

DHCP Server: IPv6 Settings #

Refer to the table below for information on the IPv6 Settings section.

Networking rutos manual lan configuration dhcp server ipv6 settings v1.png
FieldValueDescription
Router Advertisement-Servicedisabled | relay mode | server mode | hybrid mode; default: DisabledSpecifies whether router advertisements should be enabled (server mode), relayed or disabled.
DHCPv6-Servicedisabled | relay mode | server mode | hybrid mode; default: DisabledSpecifies whether DHCPv6 server should be enabled (server), relayed (relay) or disabled (disabled).
NDP-Proxydisabled | relay mode | hybrid mode; default: DisabledSpecifies whether NDP should be relayed or disabled.
DHCPv6-Modestateless | stateful-only | stateless + stateful; default: stateless + statefulRouter announcement (RA) mode.
Always announce default routeroff | on; default: offDefault router lifetime in the the router announcement (RA) message will be set if default route is present and a global IPv6 address or if default route is present but no global IPv6 address or neither of both conditions.
Announced DNS serverip; default: noneSupplements DHCP-assigned DNS server entries with ones specified in this field.
Announced DNS domainsip; default: noneDNS domain handed out to DHCP clients.

Static Lease #

Static IP leases are used to reserve specific IP addresses for specific devices by binding them to their MAC address. This is useful when you have a stationary device connected to your network that you need to reach frequently, e.g., printer, IP phone, etc.

This section displays static IP leases currently existing on this device.

Networking rutos manual lan lan configuration static lease v1.png

Static Lease: Settings #

To access a lease’s settings page, click the ‘Edit’ button located to the right of the lease:

Networking rutos manual lan lan configuration static lease edit v1.png

You should be directed to a window that looks like this:

Networking rutos manual lan lan configuration static lease settings v1.png
FieldValueDescription
MAC addressmac; default: noneMAC address of a device that is on this interface’s network.
IP addressip; default: noneThe IP address that will be reserved for the specified device.

Static Lease: Add Lease[edit | edit source] #


The Add Lease section is used to create new static leases. To create a new lease, simply enter a custom name for it and click the ‘Add’ button.

Networking rutos manual lan lan configuration static lease add lease v1.png

Relay Configuration #

The Relay Configuration section is used to relay and dynamically redirect incoming connections to a target host. Its main purpose is extending the wireless network. For example, when the device is in Wireless Station (client) mode, it can be used to bridge WAN and LAN interfaces to create a larger wireless network.
You can find a detailed usage example here.

Networking rutos manual lan lan configuration relay configuration v1.png
FieldValueDescription
Enabledoff | on; default: offTurns the relay configuration on or off.
Interfacenetwork interface; default: noneNetwork interface associated with the relay configuration.

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