Difference between revisions of "WirelessMesh"
→Basic Mesh Setup
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==Basic Mesh Setup== | ==Basic Mesh Setup== | ||
Before we go into the setup, there are some concepts about this mesh that need to be understood. | |||
There are 3 main IP settings to be carried out for every node in the mesh. LAN, WLAN and OLSR (HNA4). The OLSR refers to a network and is not an individual address. It is a reflection of the LAN subnet. | |||
The LAN for each mesh node should belong to a seperate subnet. LANs of different nodes talk to each other using the mesh routing. | |||
The OLSR setting is in the format X/n where 'X' is the network ID of the LAN and 'n' is the subnet mask. | |||
WLAN is the interface that actually communicates with other nodes in the mesh as well as the non-OLSR users who are logged in through their wireless interfaces. WLAN IP should be kept static and all the WLANs should exist on the same subnet as they directly link to each other. The 'freifunk-dnsmasq'package adds a facility to allocate DHCP IPs to the WLAN interface in order to allow wireless laptop users to use the mesh. | |||
In the setup at HBCSE in Mahkhurd Mumbai, we used 2 Linksys routers to form an OLSR mesh. We called them Node1 and Node2. | |||
The settings for each is given below. | |||
==Node1== | |||
LAN: IP 192.168.3.1 | |||
Mask 255.255.255.0 | |||
DHCP start IP 192.168.3.10 | |||
Users 250 | |||
OLSR: 192.168.3.0/24 | |||
WLAN: IP 192.168.0.2 | |||
Mask 255.255.255.0 | |||
Channel: 1 | |||
NAT: Enabled | |||
Firewall: Enabled | |||
ESSID: gnower-mesh | |||
Hostname: gnower-node1 | |||
==Node2== | |||
LAN: IP 192.168.2.1 | |||
Mask 255.255.255.0 | |||
DHCP start IP 192.168.2.5 | |||
Users 250 | |||
OLSR: 192.168.2.0/24 | |||
WLAN: IP 192.168.0.1 | |||
Mask 255.255.255.0 | |||
Channel: 1 | |||
NAT: Enabled | |||
Firewall: Enabled | |||
ESSID: gnower-mesh | |||
Hostname: gnower-node2 | |||