Summary of Contents for ATCOM Mesh Potato
- Page 1 SECN User Guide Mesh Potato Small Enterprise / Campus Network User Guide SECN_UserGuideV1d6b...
- Page 2 SECN User Guide SECN User Guide by T L Gillett is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License. Based on a work at www.villagetelco.org. Acknowledgements This work would not have been possible without the contributions of many people associated with Village Telco.
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Page 3: Table Of Contents
SECN User Guide Table of Contents 1. Introduction............................3 2. A Simple Mesh Set Up........................4 3. Example Networks...........................5 4. Setting Up MP Devices........................7 4.1 Flash the Firmware........................7 4.2 Minimum Set-up........................9 Set the br-lan IP Address......................9 4.3 Basic Set-up..........................10 Set the root Password........................11 Set the br-lan Bridge IP Address....................12 Set the ath0 IP Address......................13 4.4 Advanced Set-up........................14... -
Page 4: Introduction
SECN User Guide 1. Introduction The Small Campus Network firmware is designed to allow a collection of Mesh Potato (MP) devices to provide a data and telephony network for a small campus. The intended use is typically for a small/medium size organisation which needs to set up a number of workpoints spread over a limited geographic area, with each workpoint being equipped with a phone and a networked PC, and to do this wirelessly without using conventional LAN cabling. -
Page 5: A Simple Mesh Set Up
SECN User Guide 2. A Simple Mesh Set Up In this simple mesh network we will set up a network of two MP devices so that phone calls can be made between them, then connect one MP to a Local Area Network with internet access so that a laptop can connect wirelessly to the virtual Access Point and access the LAN and internet. -
Page 6: Example Networks
SECN User Guide 3. Example Networks Following are examples of practical networks built around MP devices operating in a mesh. Network 1 In this network, MP devices have been assigned static IP addresses that are part of the LAN address space, 192.168.1.xxx. - Page 7 SECN User Guide Network 2 In this network, MP devices have been assigned static IP addresses that are not part of the LAN address space. Instead they have been assigned IP addresses in the address space 10.130.1.xxx. This means that the MP administration interfaces (LUCI web interface and ssh command line) will not be accessible from workstations connected to the LAN with IP addresses assigned in the LAN address space.
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Page 8: Setting Up Mp Devices
SECN User Guide . Setting Up MP Devices This section will describe how to set up MP devices for use on your mesh network. After flashing the required firmware, three different methods are available to configure the device: Minimum Setup using telephone Interactive Voice Response (IVR) •... - Page 9 SECN User Guide 4. Flash the MP Refer to the general instructions in Upgrading Mesh Potato Firmware HowTo on the Village Telco Wiki. Following is a brief description of the flashing process. Connect the MP directly to your PC with an Ethernet cable with the MP power off •...
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Page 10: Minimum Set-Up
SECN User Guide 4.2 Minimum Set-up The minimum set-up process uses the telephone IVR facility to simply set a unique IP address for the br-lan bridge interface in order to allow telephone calls to the device using the IP address. The default setting for this IP address when the device is flashed is 10.130.1.20 and you should change at least the last octet of the address in order to make the address unique on the mesh. -
Page 11: Basic Set-Up
SECN User Guide 4.3 Basic Set-up The basic set-up uses the OpenWRT web interface of the MP device and allows you to set the password for the root account, set br-lan bridge IP address, and set the ath0 mesh interface address. Connect your PC to the MP device with an Ethernet cable. -
Page 12: Set The Root Password
SECN User Guide Set the root Password Select System / Admin Password from the menu and enter the new password. Then click on the Save & Apply button at the lower right of the page. Once the password as been set and the change committed, future logins will require the password to be entered. -
Page 13: Set The Br-Lan Bridge Ip Address
SECN User Guide Set the br-lan Bridge IP Address This step sets the unique IP address for the br-lan bridge interface which is used for making telephone calls to the MP device, and may be used to access the MP device for maintenance. The default setting for this IP address when the device is flashed is 10.130.1.20 and you should change at least the last octet of the address in order to make the address unique on the mesh. -
Page 14: Set The Ath0 Ip Address
SECN User Guide Set the ath0 IP Address This step sets a unique IP address for the ath0 mesh interface. Changing this address is optional – the device will perform in the mesh just as well without any change. One reason you might want to change this address is to allow connection to the device for maintenance purposes at a unique address with a PC able to operate in ah-demo WiFi mode. -
Page 15: Advanced Set-Up
SECN User Guide 4.4 Advanced Set-up Use the command line from a telnet or ssh terminal session. Connecting to the MP Connect to the MP via telnet using the MP fallback address: 172.31.255.254 Set PC to: IP: 172.31.255.253 Netmask: 255.255.255.252 Set the root password and exit. -
Page 16: Set The Ap Bssid And Password
SECN User Guide Set the AP BSSID and Password Edit the /etc/hostapd.conf file interface=ath1 bridge=br-lan driver=madwifi # Edit BSSID as required ssid=Mesh-Potato-AP country_code=DE hw_mode=g wpa=1 wpa_passphrase=potato-potato wpa_key_mgmt=WPA-PSK macaddr_acl=0 ctrl_interface=/var/run/hostapd SECN_UserGuideV1d6b... -
Page 17: Modifying Asterisk Operation
SECN User Guide Modifying Asterisk Operation Setting up External VoIP To add external VoIP support, changes are required to two Asterisk configuration files (sip.conf and extensions.conf) on the individual MP where the access is required. 1. In the /etc/asterisk/sip.conf file make the following changes: a) In the [general] section, add the following lines to register with the VoIP provider: ;... -
Page 18: Overview Of Secn Operation
SECN User Guide 5. Overview of SECN Operation This configuration uses Batman-advanced for the mesh rather than Batman as used in earlier firmware versions. Batman-advanced uses a different mesh protocol to batman and so the two won't interoperate on the same mesh. The MP device provides two physical network interfaces, Ethernet cable and wireless, which are configured as follows: The eth0 interface operates on the MP Ethernet cable connection. -
Page 19: Batman-Advanced Operation
SECN User Guide to access the MPs for management in this configuration, it is necessary to configure a PC with a static address in the same range as the MPs, and attach via Ethernet cable or WiFi. The default IP address assigned to the br-lan interface in the MPs is 10.130.1.20 which is unlikely to conflict with the default address range of commodity routers. -
Page 20: Telephony Operation
SECN User Guide 5.3 Telephony Operation Overview MP devices provide an RJ11 port to which a telephone may be connected and each MP device runs a copy of the Asterisk application to provide the telephony facilities. Asterisk allows phone calls to be made between devices by means of Voice over IP (VoIP) and Session Initiated Protocol (SIP). - Page 21 SECN User Guide SECN_UserGuideV1d6b...