Linksys E2500 User manual

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Linksys®E2500 Wireless-N Router
Configuration Guide
Revision 1.0
Copyright © 2012 Maretron, LLP All Rights Reserved
Maretron, LLP
9014 N. 23rd Ave #10
Phoenix, AZ 85021-7850
http://www.maretron.com
Maretron Manual Part #: M003030

Linksys® E2500 Wireless-N Router Configuration Guide
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Revision History
Rev. Description
1.0 Original document

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Table of Contents
1Introduction ...........................................................................................................................4
2Configuring the WiFi/Router..................................................................................................6
2.1Connecting to the WiFi/Router ................................................................................. 6
2.2Adding an IPG100 to the Network............................................................................ 9
2.3Adding a PC based N2KServer®to the Network. ................................................... 12
2.4Adding a MBB100 N2KView Client to the Network................................................. 14
2.5Adding a DSM800, TSM800, or TSM1330 N2KView Client to the Network ........... 15
2.6Adding a Wired PC N2KView Client to the Network............................................... 15
2.7Adding a Wireless PC N2KView Client to the Network........................................... 16
2.8Adding a Mobile N2KView Client to the Network.................................................... 16
3Resetting the WiFi/Router to Maretron Configuration..........................................................17
3.1Physically Reset the WiFi/Router ........................................................................... 17
3.2Opt out of the Cisco Connect ................................................................................. 17
3.3Give your Wireless Network a name ...................................................................... 19
3.4Programming network security............................................................................... 20
Appendix A-Client/Server Architecture.............................................................................22
A.1Examples of NMEA 2000® Client/Server Architectures ......................................... 23
A.2TCP/IP Networks.................................................................................................... 24
A.3NAT (Network Address Translation)....................................................................... 25
A.4PAT (Port Address Translation).............................................................................. 25
A.5Static and Dynamic IP Addressing ......................................................................... 26
A.6Software Firewall Configuration.............................................................................. 26
A.7Data Security and Encryption................................................................................. 26
Table of Figures
Figure 1 - Typical WiFi/Router Connection................................................................................ 4
Figure 2 – LAN Client/Server Architecture Example with USB100.......................................... 23
Figure 3 – WAN Client/Server Architecture Example through the Internet .............................. 23
Figure 4 – LAN Client/Server Architecture Example with IPG100 ........................................... 24

Linksys® E2500 Wireless-N Router Configuration Guide
1 Introduction
Thank you for purchasing the Maretron preconfigured Linksys
®
E2500 Wireless-N Router (from
here on referred to as WiFi/Router). The WiFi/Router is used to interconnect one or more wired
or wireless devices running Maretron’s N2KView
®
vessel monitoring and control software with
a device running Maretron’s N2KServer
®
(i.e., N2KServer
®
runs on Maretron’s Internet
Protocol Gateway (IPG100) or a PC connected to an NMEA 2000
®
network via Maretron’s
USB gateway (USB100)). Figure 1 shows a typical configuration where multiple devices
running Maretron’s N2KView
®
software (e.g., laptop computer, desktop computer, smart
phone, tablet, Maretron DSM800 display, or Maretron MBB100 black box) are connected back
to an NMEA 2000
®
network through the WiFi/Router and the Maretron Internet Protocol
Gateway (IPG100).
Figure 1 - Typical WiFi/Router Connection
Although the WiFi/Router is mostly pre-configured by Maretron, there are a few steps that must
be performed to establish the connection between Maretron’s N2KView
®
vessel monitoring
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and control software (client) and Maretron’s N2KServer®(server). If you are installing a system
similar to Figure 1 where the N2KServer®is running on the IPG100, then you should read
paragraphs 2, 2.1 and 2.2 (skip paragraph 2.3). If you are installing a system where
N2KServer is running on a PC then you should read paragraphs 2, 2.1 and 2.3 (skip paragraph
2.2).

Linksys® E2500 Wireless-N Router Configuration Guide
2 Configuring the WiFi/Router
The settings in the WiFi/Router are changed using a web browser such as Internet Explorer,
Safari, or Mozilla Firefox.
2.1 Connecting to the WiFi/Router
Connect the WiFi/Router to your PC using the blue Ethernet cable supplied in the box. Use the
supplied AC adapter to power the WiFi/Router.
Open your Internet browser and type 192.168.1.1 in the address field, and then press Enter. If
you connect successfully to the router, the browser will display a screen requesting a
username and password.
For Mozilla Firefox, this would look like:
and for Internet Explorer the corresponding screens would be:
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From now on, we will just show one set of browser screens – the screens from other browsers
will be very similar.
Leave the User name blank, and enter the default Password, which is admin and press the
OK button.
You may see the following message:
Cisco connect is a utility that comes with the router. It generalizes the setup procedures, but
we will not be using it to configure the WiFi/Router, so press the OK button to remove the
message.
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Linksys® E2500 Wireless-N Router Configuration Guide
You are now connected to the WiFi/Router, and should see the following basic setup screen.
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Whenever you make a change to the configuration, you will see the following message:
You can press Continue whenever this message is displayed to get back to the configuration
screens.
2.2 Adding an IPG100 to the Network
Connect Maretron’s Internet Protocol Gateway (IPG100) to the WiFi/Router using an Ethernet
Cable. The cable plugs into one of the blue Ethernet sockets at the back of the router. Reset
the IPG100 by removing the NMEA 2000®cable and re-attaching it. This forces the IPG100 to
connect to this router, and removes previously allocated addresses.
Now we want to get the MAC address of the IPG100, so that we can reserve an IP Address for
it. Having a constant, reserved IP Address for the IPG100, makes it easy for N2KView®clients
to find the IPG100 on the network. We will choose to use the address 192.168.1.3 for the
IPG100. Note that if you have more than one IPG100 or PC-based N2KServer®, then each one
must have a unique reserved address, but this is beyond the scope of these instructions, so
please contact Maretron Technical Support for assistance.
Inside the WiFi/Router is a DHCP Server, which is responsible for assigning IP addresses to
other network devices that request them. DHCP stands for Dynamic Host Configuration
Protocol.
The IPG100 on the network will be identified by the Client Name of IPG100_<serial number>.
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Linksys® E2500 Wireless-N Router Configuration Guide
From the Basic Setup page, open the DHCP Reservation Table by pressing the DHCP
Reservation button.
The DHCP Reservation table is displayed as shown below:
If you do not see an IPG100 in the top part of the table, then it has not requested an address
from the DHCP Server. Ensure that DHCP is set to Yes in the device configuration of the
IPG100 (refer to the IPG100 manual).
Carefully copy the Client Name and MAC Address for the IPG100 from the top table to the
second table. Set the assigned IP Address for the IPG100 to 192.168.1.3.
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Press Add Clients to add the IPG100 to the table:
Press Save Settings and then Close.
To make these settings take effect, reset the IPG100 by disconnecting the NMEA 2000®cable,
and then re-connecting.
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Linksys® E2500 Wireless-N Router Configuration Guide
2.3 Adding a PC based N2KServer®to the Network.
In addition to the PC connected to the WiFi/Router used to configure the WiFi/Router, also
connect the PC slated to run the N2KServer®to the WiFi/Router using an Ethernet Cable. The
cable plugs into one of the blue Ethernet sockets at the back of the WiFI/Router.
Now we want to get the MAC address of the PC running N2KServer®, so that we can reserve
an IP Address for it. Having a constant, reserved IP Address for N2KServer®, makes it easy for
N2KView®clients to find N2KServer®on the network. We will choose to use the address
192.168.1.3 for the N2KServer®. Note that if you have more than one IPG100 or PC-based
N2KServer®, then each one must have a unique reserved address, but this is beyond the
scope of these instructions, so please contact Maretron Technical Support for assistance.
Inside the WiFi/Router is a DHCP Server, which is responsible for assigning IP addresses to
other network devices that request them. DHCP stands for Dynamic Host Configuration
Protocol.
The PC running N2KServer®on the network will be identified by name of the PC.
From the Basic Setup page, open the DHCP Reservation Table by pressing the DHCP
Reservation button.
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The DHCP Reservation table is displayed as shown below:
Carefully copy the Client Name and MAC Address for the PC from the top table to the second
table. Set the assigned IP Address for the PC to 192.168.1.3.
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Linksys® E2500 Wireless-N Router Configuration Guide
Press Add Client to add the PC to the table.
Press Save Settings and then Close.
To make these settings take effect, disconnect and then reconnect the Ethernet cable to the
PC.
Note that if the PC containing N2KServer®is the same PC that you are working on, your
session will be disconnected as the PC is given its new address.
2.4 Adding a MBB100 N2KView Client to the Network
Connect Maretron’s Black Box (MBB100) to the WiFi/Router using an Ethernet Cable. The
cable plugs into one of the blue Ethernet sockets at the back of the router.
Open the Configuration Dialog on the MBB100 by clicking on the Configuration tab on the right
of the screen. In the Network Configuration section, ensure that the Use DHCP box is
selected. If it is not, click on the square to display the check mark and press the Update button.
The screen may blank for a couple of minutes while the change is applied.
Close the Configuration Dialog and open the Connections Dialog by clicking on the
Connections tab on the right of the screen.
In the N2KServer Connection section, press the Disconnect button, type the IP address of the
IPG100 or PC-based N2KServer.
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If the default values are used this should be 192.168.1.3. A message should be displayed at
the bottom left of the section stating that an IPG100 or N2KServer has been found, and giving
its IP Address.
Press the Connect button to establish the connection.
2.5 Adding a DSM800, TSM800, or TSM1330 N2KView
Client to the Network
Connect the DSM800/TSM800/TSM1330 to the WiFi/Router using an Ethernet Cable. The
cable plugs into one of the blue Ethernet sockets at the back of the router.
Open the Configuration Dialog on the DSM800/TSM800/TSM1330 by clicking on the
Configuration tab on the right of the screen. In the Network Configuration section, ensure that
the Use DHCP box is selected. If it is not, click on the square to display the check mark and
press the Update button. The screen may blank for a couple of minutes while the change is
applied.
Close the Configuration Dialog and open the Connections Dialog by clicking on the
Connections tab on the right of the screen.
In the N2KServer Connection section, press the Disconnect button, type the IP address of the
IPG100 or PC-based N2KServer.
If the default values are used this should be 192.168.1.3. A message should be displayed at
the bottom left of the section stating that an IPG100 or N2KServer has been found, and giving
its IP Address.
Press the Connect button to establish the connection.
2.6 Adding a Wired PC N2KView Client to the Network
Connect the PC to the WiFi/Router using an Ethernet Cable. The cable plugs into one of the
blue Ethernet sockets at the back of the router.
Using the Network Configuration tools supplied with the Windows Operating System, ensure
that DHCP is enabled.
Open the Connections Dialog by clicking on the Connections tab on the right of the screen.
In the N2KServer Connection section, press the Disconnect button, type the IP address of the
IPG100 or PC-based N2KServer.
If the default values are used this should be 192.168.1.3. A message should be displayed at
the bottom left of the section stating that an IPG100 or N2KServer has been found, and giving
its IP Address.

Linksys® E2500 Wireless-N Router Configuration Guide
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Press the Connect button to establish the connection.
2.7 Adding a Wireless PC N2KView Client to the Network
Using the Wireless Configuration programs supplied with the PC, connect to the Wireless
Network identified by the SSID written on the label affixed to the bottom of your router. When
prompted to enter the passphrase, enter the passphrase from the same label. If requested to
enter the type of security used by the wireless network, select the option WPA/WPA2.
Open the Connections Dialog by clicking on the Connections tab on the right of the screen.
In the N2KServer Connection section, press the Disconnect button, type the IP address of the
IPG100 or PC-based N2KServer.
If the default values are used this should be 192.168.1.3. A message should be displayed at
the bottom left of the section stating that an IPG100 or N2KServer has been found, and giving
its IP Address.
Press the Connect button to establish the connection.
2.8 Adding a Mobile N2KView Client to the Network
Mobile N2KView Clients may be iPads, iPhones, Android smart phones, etc.
Using the Wireless Configuration programs supplied with the device, connect to the Wireless
Network identified by the SSID written on the label affixed to the bottom of your router. When
prompted to enter the passphrase, enter the passphrase from the same label. If requested to
enter the type of security used by the wireless network, select the option WPA/WPA2.
In N2KView Mobile, press the Menu button at the top of the screen, and then the Settings
button to enter the Setting dialog. Type the IP address of the IPG100 or PC-based N2KServer.
If the default values are used this should be 192.168.1.3.
Press the Connect button to establish the connection.

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3 Resetting the WiFi/Router to Maretron
Configuration
In addition to the parameters that must be set by the user described in paragraph 2, several
parameters are set by Maretron at the factory. If the factory settings are ever lost, then you can
reset the WiFi/Router and program the factory setting by following the instructions outlined in
the following paragraphs.
3.1 Physically Reset the WiFi/Router
On the bottom of the WiFi/Router is a small red button. Hold it down until the lights at the top of
the router turn yellow (about 5 seconds). You router has now been reset to the original factory
configuration, and now needs the original Maretron configuration to be restored.
3.2 Opt out of the Cisco Connect
When you reset the WiFi/Router to the Cisco factory default configuration, it will ask you to
install the Cisco Connect software. We will not be using the Cisco Connect software to
configure the router, so click “Continue with an open and unsecured network”. We will be
securing the network ourselves in the following steps, so don’t worry.
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You will now see another warning screen. Click the checkbox next to “I understand that my
network is currently open and not secure. I would like to manually configure my router’s
security settings.”, and then press the Continue button.
You will now see one more warning message. Click Do not show me this again, and then
click OK.
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You will now see the router’s manual configuration screen, and can proceed to the next steps.
3.3 Give your Wireless Network a name
When you connect a device to a router using the wireless connection, you are generally shown
a list of wireless devices to which you can connect. The name that you give to your router will
help you identify this router. The name will be preset to Maretron followed by the last five
digits of the router’s serial number.
Make sure that you are looking at the Basic Wireless Settings page, by clicking on Wireless
and then Basic Wireless Settings. These will both show white lettering on a blue background
when you are on the correct page.
Change the Configuration View to Manual.
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There are two Network Name (SSID) fields, in both of them, replace the word Cisco with
Maretron, leaving the 5 digits from the serial number intact.
3.4 Programming network security
This section details the programming of WiFi/Router to ensure that wireless messages to and
from the router are encrypted against eavesdropping.
Make sure that you are looking at the Wireless Security page, by clicking on Wireless and
then Wireless Security.
Change the Security Mode to WPA2/WPA Mixed Mode for both the 5 GHz Wireless Security
and the 2.4 GHz Wireless Security categories.
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