56

With this field you can alter the metric of that entry

6.

Client ID to send when

requesting DHCP

Specify client ID which will be sent when requesting DHCP

(Dynamic Host Configuration Protocol)

7.

Vendor Class to send

when requesting DHCP

Specify vendor class which be sent when requesting DHCP

(Dynamic Host Configuration Protocol)

8.

Override MAC address

86:48:71:B7:E9:E4

Override MAC address of the WAN interface. If your ISP gives you

a static IP address it might also bind it to your computers MAC

address (i.e. that IP will only work with your computer). In this

field you can enter your computers MAC address and fool the

gateway in thinking that it is communicating with your computer.

9.

Override MTU

1500

Maximum transmission unit

–

specifies the largest possible size of

a data packet.

7.2.2.2.3

PPPoE

Field name

Sample value

Explanation

1.

Disable NAT

Enable/Disable

If checked, router will not perform NAT (masquerade) on this

interface

2

Use default gateway

Enable/Disable

If unchecked, no default route is configured

3.

Use gateway metric

0

4.

Use DNS servers

advertised by peer

Enable/Disable

If unchecked, the advertised DNS server addresses are ignored

5.

LCP echo failure

threshold

0

Presume peer to be dead after given amount of LCP echo failures,

use 0 to ignore failures

6.

LCP echo interval

5

Send LCP echo requests at the given interval in seconds, only

effective in conjunction with failure threshold

7.

Inactivity timeout

0

Close inactive connection after the given amount of seconds, use

0 to persist connection

7.2.2.2.4

IP Aliases

IP aliases are a way of defining or reaching a subnet that works in the same space as the regular network.

57

As you can see, the configuration is very similar to the static protocol; only in the example a 99th subnet is

defined. Now if some device has an IP in the 99 subnet (192.168.99.xxx) and the subnets gateway metric i

s “higher” and

the device is trying to reach the internet it will reroute it’s traffic not to the gateway that is defined in common

configurations but through the one that is specified in IP aliases.

You may also optionally define a broadcast address and a custom DNS server.

7.2.2.2.5

Backup WAN configuration

Backup WAN is function that allows you to back up your primary connection in case it goes down. There can be

two backup connections selected at the same time, in that case, when primary connection fails, router tries to use

backup with higher priority and if that is unavailable or fails too, then router tries the backup with lower priority.

The majority of the options consist of timing and other important parameters that help determine the health of

your primary connection. Regular health checks are constantly performed in the form of ICMP packets (Pings) on your

primary connection. When the connections state starts to change (READY->NOT READY and vice versa) a necessary

amount of failed or passed health checks has to be reached before the state changes completely. This delay is instituted

so as to mitigate “spikes” in connection availability, but it also extends the time before the backup link can be brought

up or down.

58

Field Name

Sample value

Explanation

1.

Health monitor Interval

Disable/5/10/20/30/60/120

Seconds

The interval at which health checks are performed

2.

Health monitor ICMP host(s)

Disable/DNS Server(s)

/WAN GW/Custom

Where to Ping for a health check. As there is no

definitive way to determine when the connection

to internet is down for good, you’ll have to define

a host whose availability that of the internet as a

whole.

3.

Health monitor ICMP timeout

1/3/4/5/10 Seconds

How long to wait for an ICMP request to come

back. Set a higher value if your connection has

high latency or high jitter (latency spikes).

4.

Attempts before failover

1/3/5/10/15/20

How many checks should fail for your WAN

connection to be declared DOWN for good.

5.

Attempts before recovery

1/3/5/10/15/20

How many checks should pass for your WAN

connection to be declared UP.

7.2.2.3

How do I set up a backup link?

First we must select a main link and choose one or two backup links in WAN section. Then push the “Edit” button

and configure your WAN and Backup Wan settings to your liking. Click Save and wait until the settings are applied. Now

in the Status -> Network Information -> WAN page there should be a status indication for the backup WAN. If everything

is working correctly you should see something like this:

The above picture shows the status for Backup WAN configured on a wired main link. You can now simulate a

downed link by simply unplugging your Ethernet WAN cable. When you’ve done so you should see this:

And, if you plug the cable back in you should, again, see this:

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7.3

LAN

This page is used to configure the LAN network, where all your devices and computers that you connect to the

router will reside.

7.3.1

Configuration

7.3.1.1

General Setup

Field name

Sample value

Explanation

1.

IP address

192.168.1.1

Address that the router uses on the LAN network

2

IP netmask

255.255.255.0

A mask used to define how large the LAN network is

3.

IP broadcast

IP broadcasts are used by BOOTP and DHCP clients to find and

send requests to their respective servers

7.3.1.2

Advanced settings

Field name

Sample value

Explanation

1.

Accept router

advertisements

Enable/Disable

If enabled allows accepting router advertisements (Disabled by

default)

2.

Override MTU

1500

MTU (Maximum Transmission Unit) specifies the largest

possible size of a data packet

3.

Use gateway metric

0

With this field you can alter the metric of that entry

4.

Use WAN port as LAN

Enable/Disable

Enable/disable WAN port using as LAN port

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7.3.2

DHCP Server

The DHCP server is the router side 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 IP address automatically the DHCP

server will lease an IP address and the device will be able to fully communicate with the router.

7.3.2.1

General Setup

Field Name

Sample value

Explanation

1.

DHCP

Enable / Disable/

DHCP Relay

Manage DHCP server

2.

Start

100

The starting address of the range that the DHCP server can use to give out to

devices. E.g.: if your LAN IP is 192.168.2.1 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

[192.168.2.1

–

192.168.2.254](192.168.2.0 and 192.168.2.255 are special

unavailable addresses). If the Start value is set to 100 then the DHCP server will

only be able to lease out addresses starting from 192.168.2.100

3.

Limit

150

How many addresses the DHCP server gets to lease out. Continuing on the above

example: if the start address is 192.168.2.100 then the end address will be

192.168.2.254 (100 + 150

–

1 = 254).

4.

Lease time

12

How long can a leased IP be considered valid. An IP address after the specified

amount of time will expire and the device that leased it out will have to request

for a new one. Select Hour or Minute (minimum 2min).