Mercado network IP addresses

Mercado Network IP Information

The Mercado network consists of a master node and subnodes. Each subnode consists of an 802.11a relay radio and an 802.11b local AP radio. Each subnode has its own independent subnet and runs its own dhcp server and DNS cache. This allows easier location of problem clients (they can be readily identified by IP).

Each subnode works in a 32 address subnet and follows the same
general layout:

SettingValue
Subnet mask255.255.255.224
CIDR / length/27
802.11b radiofirst address in range
eth0 portsecond address in range
802.11a radioaddress from master node subnet
DHCPall unused addresses are allocated

The subnets are allocated from the range 10.12.12.x as shown
below:

NetworkNameHost StartHost EndBroadcast
10.12.12.0Master10.12.12.110.12.12.3010.12.12.31
10.12.12.32node110.12.12.3310.12.12.6210.12.12.63
10.12.12.64node210.12.12.6510.12.12.9410.12.12.95
10.12.12.96node310.12.12.9710.12.12.12610.12.12.127
10.12.12.128node410.12.12.12910.12.12.15810.12.12.159
10.12.12.160node510.12.12.16110.12.12.19010.12.12.191
10.12.12.192node610.12.12.19310.12.12.22210.12.12.223
10.12.12.224node710.12.12.22510.12.12.25410.12.12.255



Using the scheme above, the actual addresses assigned are:

Master Node Addresses

NameAddressComments
gateway10.12.12.1backhaul gateway
802.11a radio10.12.12.1
802.11b radio192.168.0.33connects to existing D-Link wireless router
eth010.12.12.2
broadcast10.12.12.31

Node 1 Addresses

NameAddressCommment
ath010.12.12.11802.11a backhaul radio
wlan010.12.12.33local 802.11b AP radio
eth010.12.12.34reserved, not currently used
DHCP range10.12.12.35 - 62
broadcast10.12.12.63
subnet mask255.255.255.224i.e., /27

The other nodes are configured similarly, using the following table for their 802.11a backhaul subnet address.

Backhaul subnet address allocation

NameAddressSubnet
node1 a radio10.12.12.1110.12.12.32
node2 a radio10.12.12.1210.12.12.64
node3 a radio10.12.12.1310.12.12.96
node4 a radio10.12.12.1410.12.12.128
node5 a radio10.12.12.1510.12.12.160
node6 a radio10.12.12.1610.12.12.192
node7 a radio10.12.12.1710.12.12.224

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