there are 3 areas in shared memory reserved for configuration.

0 - fs configuration
1 - boot hardware config
2 - running config (deltas from 0)
3 - web config (contains only deltas from 0).

web config writes directly to 3 and messages cbrwrd about stuff.

config layout is like this:
[status] = conf|noconf|nodir|changelevel
[hostname] = hostname
[domainname] = domainname
[login][username] = sha1password
[zone][<zonename>][name]=1
[interface][<interfacename>][desciption] = desc
                            [name] = name
                            [address4] = address
                            [address6] = address
                            [zone] = zone
                            [mtu] = mtu
                            [speed] = speed
                            [duplex] = duplex


                            
[interface][lag][<lagname>][<x>] = interface
                [description] = desc
                
[interface][bridge][<bridgename>][<x>] = interface
                      [description]
                      
[route4][default|<network>][address] = gateway
                           [device] = device
                           [description]

[route6][default|<network>][address] = gateway
                           [device] = device
                           [description]
                           
[dns][server][<x>][address] = address

[ntp][server][<x>][address] = adddress

[hardware][netdev][<itnerface>][name] = realname
                               [driver] = driver
                               [mtu] = mtu
                               [hwaddress] = mac address