Personal Area WiFI networks
The first step to getting my devices working for me is to set up a consistent network for them to use. To do this I am going to use a small pocket sized router that can be run from a usb battery to act as a hot spot for my devices, but also as a bridge to an internet connected wifi network.
The network I want to setup looks something like this:
+
+---------+ |
| phone <<-------+ |
+---------+ | |
| |
+---------+ | DHCP PANWIFI | DHCP PUBLIC WIFI
| laptop <<-------+ +-----------------+ | +-----------------+
+---------+ | | | | | |
+---->>> OpenWRT <<<----->>> +----> INTERNET
+---------+ | | | | | |
| camera <<-------+ +-----------------+ | +-----------------+
+---------+ | 192.168.x.x/xx |
|10.10.10.0/24 |
+---------+ | |
| pda <<-------+ |
+---------+ |
|
Personal area wifi network | Upstream wifi network
+--------------------------------------------------+---------------------------------------+
I struggled to find a network configuration like this in the OpenWRT wiki. I wondered for a while if it was because the network was an impossible (seemed unlikely) or if it was so obvious to not be worth documenting.
Eventually google turned up a bitbucket page with a config that worked perfectly.
I need to find a method which makes it straight forward to configure a new outgoing network. I think at the moment I am going to have to edit the wifi config files to make any changes. On the road that will be less than ideal.