RUTX10 Interfaces

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Main Page > RUTX Routers > RUTX10 > RUTX10 Manual > RUTX10 WebUI > RUTX10 Network section > RUTX10 Interfaces

The information in this page is updated in accordance with firmware version RUTX_R_00.02.05.1.

Summary[edit | edit source]

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

This manual page provides an overview of the Interfaces page in RUTX10 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.gif

Network Interfaces[edit | edit source]

The Network Interfaces section displays interfaces currently existing on this device.

Networking rutos manual interfaces network interfaces lan 1 mobile 0 dualsim 0 dualmodem 0 wired 1.png

Add Interface[edit | edit source]

The Add Interface section is used to create additional network interfaces. To create a new interface, simply enter a custom name for it and click the 'Add' button.

Networking rutos manual interfaces add interface.png

Interface configuration[edit | edit source]

This section provides information on network interface configuration. There are two main types of interfaces on the device:

  • Ethernet LAN
  • Ethernet WAN

Different types of interfaces can be configured under different protocols:

Static DHCP DHCPv6 PPPoE
Ethernet LAN
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Ethernet WAN
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To begin configuring an interface, click the 'Edit' button on the right side of the interface:

Networking rutos manual interfaces network interfaces edit button lan 1.png

General Setup[edit | edit source]


The General Setup section is used to configure the protocol of an interface and all the different parameters that go along with each protocol. If None protocol is chosen, all other interface settings will be ignored. The following sections are different for each protocol.

General Setup: Static[edit | edit source]


The static protocol uses a predefined manual configuration instead of obtaining parameters automatically via a DHCP lease.

Networking rutos manual interfaces interface configuration general setup static ip lan 1.png

Field Value Description
IPv4 address ip4; default[for LAN]: 192.168.1.1 The IPv4 address interface of this interface. An IP address identifies a device on a network and allows it to communicate with other devices.
IPv4 netmask netmask; default[for LAN]: 255.255.255.0 The 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.
IPv4 gateway ip4; default: none The IPv4 gateway address used by this interface. An interface's default gateway is the default address through which all outgoing traffic is directed.
IPv4 broadcast ip4; default: none The IPv4 broadcast address used by this interface. IP broadcasts are used by BOOTP and DHCP clients to find and send requests to their respective servers.
DNS servers ip4; default: none DNS 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.

General Setup: DHCP[edit | edit source]


The DHCP protocol is used to set up an interface which obtains its configuration parameters automatically via a DHCP lease.

Networking rutos manual interfaces interface configuration general setup dhcp.png

Field Value Description
Hostname to send when requesting DHCP string; default: none A hostname for this interface used to identify this machine on the DHCP server.

General Setup: DHCPv6[edit | edit source]


The DHCPv6 protocol is used to set up an IPv6 interface which obtains its configuration parameters automatically via a DHCP lease.

Networking rutos manual interfaces interface configuration general setup dhcpv6.png

Field Value Description
Request IPv6-address try | force | disabled; default: try Defines the behaviour for requesting an address.
Request IPv6-prefix of length integer [0..64] | Automatic | disabled ; default: Automatic Defines how this will request a IPv6 ULA-Prefix length. If set to 'disabled' the interface will obtain a single IPv6 address without a subnet for routing.

General Setup: PPPoE[edit | edit source]


The PPPoE protocol is used to set up a PPP (Point-to-Point Protocol) connection over the Ethernet port.

Networking rutos manual interfaces interface configuration general setup pppoe.png

Field Value Description
PAP/CHAP username string; default: none Username used in PAP/CHAP authentication.
PAP/CHAP password string; default: none Password used in PAP/CHAP authentication.
Access Concentrator string; default: none The Access Concentrator to connect to. ISPs used Access Concentrators to route their PPPoE connections. Usually, the settings are received automatically, however in some cases it is required to specify the name for an Access Concentrator. Leave empty to detect Access Concentrators automatically.
Service name string; default: none The Service Name to connect to. Leave empty to detect Service name automatically.


Advanced Settings[edit | edit source]


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

Advanced Settings: Static[edit | edit source]


Advanced Settings information for Static protocol is provided in the table below.

Networking rutos manual interfaces interface configuration advanced settings static.png

Field Value Description
Bring up on boot off | on; default: on Specifies whether the interface should be launched during the boot process. If set to off, the interface would have to be brought up manually after each boot.
Use built in IPv6-management off | on; default: on Specifies whether to enable prefix delegation.
Force link off | on; default: on Specifies whether interface settings (IP, route, gateway) are assigned to the interface regardless of the link being active or only after the link has become active.
Override MAC address mac; default: none When set, uses a user-defined MAC address for the interface instead of the default one.
Override MTU integer [1..9200]; default: none Changes 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.
Use gateway metric integer; default: none A metric specifies the priority of the gateway. The lower the metric, the higher the priority (0 for highest priority).
IPv6 assignment length integer [0..64] | Disabled; default: Disabled Delegates a prefix of given length to the interface.
IPv6 address ip6; default: none The interface's IPv6 address. An IP address identifies a device on a network and allows it to communicate with other devices.
Note: this field only becomes visible when IPv6 assignment length is set to disabled
IPv6 gateway ip6; default: none IPv6 prefix routed here for use on other interfaces.
Note: this field only becomes visible when IPv6 assignment length is set to disabled.
IPv6 routed prefix ip6; default: none IPv6 prefix routed here for use on other interfaces.
Note: this field only becomes visible when IPv6 assignment length is set to disabled.
IPv6 assignment hint string; default: none Subprefix ID to be used if available (e.g., the value 1234 with an IPv6 assignment length of 64 will assign prefixes of the form …:1234::/64 or given LAN ports, LAN & LAN2, and a prefix delegation of /56, use IPv6 assignment hint of 00 and 80 which would give prefixes of LAN …:xx00::/64 and LAN2 …:xx80::/64)
IPv6 suffix ip6 suffix; default: none When an IPv6 prefix (like 'a:b:c:d::') is received from a delegating server, use a suffix (like '::1') to form an IPv6 address ('a:b:c:d::1') for the interface. Leave empty to generate a random suffix.

Advanced Settings: DHCP[edit | edit source]


Advanced Settings information for DHCP protocol is provided in the table below.

Networking rutos manual interfaces interface configuration advanced settings dhcp.png

Field Value Description
Bring up on boot off | on; default: on Specifies whether the interface should be launched during the boot process. If set to off, the interface would have to be brought up manually after each boot.
Use built-in IPv6 management off | on; default: on Specifies whether to enable prefix delegation.
Force link off | on; default: off Specifies whether interface settings (IP, route, gateway) are assigned to the interface regardless of the link being active or only after the link has become active.
Use broadcast flag off | on; default: off Required for certain ISPs. For example, Charter with DOCSIS 3.
Use default gateway off | on; default: on When checked, creates a default route for the interface.
Use DNS servers advertised by peer off | on; default: on Specifies whether to use DNS servers obtained automatically or specified manually.
Use custom DNS servers off | on; default: on Specifies whether to use DNS servers obtained automatically or specified manually.
Note: this field only becomes visible when Use DNS servers advertised by peer is set to off
Use gateway metric integer; default: none A metric specifies the priority of the gateway. The lower the metric, the higher the priority (0 for highest priority).
Client ID to send when requesting DHCP string; default: none Client ID which will be sent when requesting a DHCP lease.
Vendor Class to send when requesting DHCP string; default: none Vendor class which will be sent when requesting a DHCP lease.
Override MAC address mac; default: none When set, uses a user-defined MAC address for the interface instead of the default one.
Override MTU integer [1..9200]; default: none Changes the interfaces 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.

Advanced Settings: DHCPv6[edit | edit source]


Advanced Settings information for DHCPv6 protocol is provided in the table below.

Networking rutos manual interfaces interface configuration advanced settings dhcpv6.png

Field Value Description
Bring up on boot off | on; default: on Specifies whether the interface should be launched during the boot process. If set to off, the interface would have to be brought up manually after each boot.
Use built in IPv6-management off | on; default: on Specifies whether to enable prefix delegation.
Force link off | on; default: off Specifies whether interface settings (IP, route, gateway) are assigned to the interface regardless of the link being active or only after the link has become active.
Use default gateway off | on; default: on When checked, creates a default route for the interface.
Use DNS servers advertised by peer off | on; default: on Specifies whether to use DNS servers obtained automatically or specified manually.
Use custom DNS servers off | on; default: on Specifies whether to use DNS servers obtained automatically or specified manually.
Note: this field only becomes visible when Use DNS servers advertised by peer is set to off
Custom delegated IPv6-prefix ip6 prefix; default: none Uses an (additional) user-provided IPv6 prefix for distribution to clients.
Client ID to send when requesting DHCP string; default: none Client ID which will be sent when requesting a DHCP lease.
Override MAC address mac; default: none When set, uses a user-defined MAC address for the interface instead of the default one.
Override MTU integer [1..9200]; default: none Changes 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.

Advanced Settings: PPPoE[edit | edit source]


Advanced Settings information for PPPoE protocol is provided in the table below.

Networking rutos manual interfaces interface configuration advanced settings pppoe.png

Field Value Description
Bring up on boot off | on; default: on Specifies whether the interface should be launched during the boot process. If set to off, the interface would have to be brought up manually after each boot.
Use built-in IPv6 management off | on; default: on Specifies whether to enable prefix delegation.
Force link off | on; default: off Specifies whether interface settings (IP, route, gateway) are assigned to the interface regardless of the link being active or only after the link has become active.
Obtain IPv6 address Automatic | Disabled | Manual; default: Automatic Defines behaviour for obtaining an IPv6 address.
Use default gateway off | on; default: on When checked, creates a default route for the interface.
Use gateway metric integer; default: none A metric specifies the priority of the gateway. The lower the metric, the higher the priority (0 for highest priority).
Use DNS servers advertised by peer off | on; default: on Specifies whether to use DNS servers obtained automatically or specified manually.
Use custom DNS servers off | on; default: on Specifies whether to use DNS servers obtained automatically or specified manually.
Note: this field only becomes visible when Use DNS servers advertised by peer is set to off
LCP echo failure threshold integer; default: none Presumes peer to be dead after given amount of LCP echo failures. Leave it at 0 to ignore failures.
LCP echo interval integer; default: none Sends LCP echo requests at the given interval in seconds. This function is only effective in conjunction with failure threshold.
Host-Uniq tag content raw hex-encoded bytes; default: none Leave empty unless your ISP require this.
Inactivity timeout mac; default: none Close inactive connection after the given amount of seconds. Leave it at 0 to persist connection.
Override MTU integer [1..1500]; default: none Maximum Transmission Unit (MTU) – specifies the largest possible size of a data packet.

Physical Settings[edit | edit source]


The Physical Settings section is used to create associations with physical interfaces and bridge network interfaces.

Networking rutos manual interfaces interface configuration physical settings.png

Field Value Description
Bridge interfaces off | on; default: off Bridges physical interfaces specified in this configuration.
Enable STP off | on; default: off Turns the use of Spanning Tree Protocol (STP) for this interface on or off.
Note: this field becomes visible when 'Bridge interfaces' is set to on
Interface network interface(s); default: none Ties this network interface to physical device interfaces such as Ethernet or WiFi radios.

Firewall Settings[edit | edit source]


The Firewall Settings section is used to specify to which firewall zone if any this interface belongs. Assigning an interface to a zone may provide easier configuration of firewall rules. For example, instead of configuring separate rules for each WAN interface, you can add all WAN interfaces into a single firewall zone and make the rule apply to that zone instead.

More firewall zone settings can be configured from the Network → Firewall → General Settings → Zones section.

Networking rutos manual interfaces interface configuration firewall settings.png

Field Value Description
Create / Assign firewall-zone firewall zone; default: none Assigns this interface to the specified firewall zone.

DHCP Server[edit | edit source]


A 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

In order to view the DHCP server configuration, the interface protocol must be set to Static.

DHCP Server: General Setup[edit | edit source]


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

Networking rutos manual interfaces interface configuration dhcp server general setup lan 1.png

Field Value Description
Enable DHCP Enable | Disable | DHCP Relay*; default: Enable Turns 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.
Start integer [1..255]; default: 100 The 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.
Limit integer [1..255]; default: 150 How 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 time integer [2..999999]m/h; default: 12h A 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.

* 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: Advanced Settings[edit | edit source]


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

Networking rutos manual interfaces interface configuration dhcp server advanced settings.png

Field Value Description
Dynamic DHCP off | on; default: on Enables dynamic allocation of client addresses. If this is disabled, only clients that have static IP leases will be served.
Force off | on; default: off The DHCP force function ensures that the device will always start it’s DHCP server, even if there is another DHCP server already running in the its network. By default the device’s DHCP server will not start when it is connected to a network segment that already has a working DHCP server.
IPv4 Netmask netmask; default: none Sends a different netmask than the LAN netmask to DHCP clients.
DHCP Options dhcp options; default: none Additional options to be added to the DHCP server. For example with '26,1470' or 'option:mtu, 1470' you can assign an MTU value per DHCP. You can find more information on DHCP Options here.

DHCP Server: IPv6 Settings[edit | edit source]


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

Networking rutos manual interfaces interface configuration dhcp server ipv6 settings.png

Field Value Description
Router Advertisement Service Disabled | Relay mode | Server mode | Hybrid mode; default: Disabled Specifies whether router advertisements should be enabled (server mode), relayed or disabled.
DHCPv6 Service Disabled | Relay mode | Server mode | Hybrid mode; default: Disabled Specifies whether DHCPv6 server should be enabled (server), relayed (relay) or disabled (disabled).
NDP Proxy Disabled | Relay mode | Hybrid mode; default: Disabled Specifies whether NDP should be relayed or disabled.
DHCPv6 Mode Stateless | Stateful-only | Stateless + stateful; default: Stateless + stateful Router announcement (RA) mode.
Always announce default router off | on; default: off Default 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 server ip; default: none Supplements DHCP-assigned DNS server entries with ones specified in this field.
Announced DNS domains ip; default: none DNS domain handed out to DHCP clients.

Static Lease[edit | edit source]


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. In order to view the Static Lease section, the interface protocol must be set to Static.


The Static Lease list is empty by default. To add a new Static Lease look to the Add Lease section; enter a custom name for the lease and click the 'Add' button.

Networking rutos manual interfaces interface configuration static lease add button.png

You should be redirected to the Settings page for that lease, which should look similar to this:

Networking rutos manual interfaces interface configuration static lease settings.png

Field Value Description
MAC address mac; default: none MAC address of a device that will connect to this network interface.
IP address ip; default: none The IP address that will be reserved for the specified device.

After you click 'Save & Apply' you will be redirected back to the Network Interfaces page. If you wish to modify the lease later, you can find in the Static Lease list. Simply click the 'Edit' button next to it in order to enter the Settings page for the Static Lease.

Networking rutos manual interfaces interface configuration static lease edit button.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.

In order to view the Relay Configuration section, the interface protocol must be set to Static.

Networking rutos manual interfaces interface configuration relay configuration.png

Field Value Description
Enabled off | on; default: off Turns the relay configuration on or off.
Interface network interface; default: none Network interface associated with the relay configuration.