77 lines
2.3 KiB
Markdown
77 lines
2.3 KiB
Markdown
# APU server
|
|
|
|
The APU is a Linux box to be used as a control box at LIN sample environment
|
|
|
|
servercfg/ contains the configuration files for all boxes
|
|
|
|
to_system/ contains the files to be installed in the system
|
|
|
|
## config files
|
|
|
|
filename: servercfg/(hostname)_(hexdigits).cfg
|
|
|
|
* (hostname) the hostname to be given on startup
|
|
* (hexdigits) the last six digits of one of the ethernet adresses of the interfaces on the APU
|
|
|
|
content of the config files:
|
|
|
|
```
|
|
[NETWORK]
|
|
enp1s0=192.168.127.254 # leftmost socket: connect here a moxa with factory settings
|
|
enp2s0=192.168.2.2 # connected device will get this ip via DHCP
|
|
enp3s0=192.168.3.3 # or must be configured static to this IP
|
|
enp4s0=dhcp # rightmost socket is the uplink
|
|
|
|
[ROUTER]
|
|
3000=/dev/ttyUSB0 # routing 3000 to the internal serial port /dev/ttyUSB0
|
|
5900=192.168.2.33 # routing VNC (local port 5900 to port 5900 on 192.168.2.33
|
|
8080=192.168.127.254:80 # routing 8080 to port 80 of 192.168.127.254
|
|
|
|
[FRAPPY]
|
|
cfg=uniax # the cfg file for the frappy server
|
|
port=5000 # the port for the frappy server
|
|
```
|
|
|
|
## network configuration
|
|
|
|
The example above fits the most cases. Here a detailed description of possible settings:
|
|
|
|
### fixed IP
|
|
```
|
|
enp2s0=192.168.3.5
|
|
```
|
|
Configure the IP address of the connected device to get the specified IP via DHCP or
|
|
configure the device to with this static IP. The last number must be within 1..254,
|
|
the APU port itself will get 1 (or 2, if the specified IP is 1).
|
|
|
|
### custom network
|
|
```
|
|
enp3s0=192.168.3.1/24 # our ip address, the static address of the connected device must
|
|
# be within 1-254 and not match our own
|
|
```
|
|
24 means 24 bit = 3 bytes network address.
|
|
A local network with static addresses. This way, the APU can get an other address than
|
|
192.168.x.1 or 192.168.x.2 or the network address size might be defined other than 24.
|
|
Probably needed rarely.
|
|
|
|
### uplink via DHCP
|
|
```
|
|
enp4s0=wan # or enp4s0=dhcp
|
|
```
|
|
Uplink configured for DHCP in any network n.x.y.z with n < 192
|
|
|
|
### customized uplink
|
|
```
|
|
enp1s0=wan,192.168.1.0/24
|
|
```
|
|
Add more networks to the allowed uplink range. More than one range is allowed, comma separated.
|
|
Must not overlap networks specified for other ports!
|
|
|
|
### disabled port
|
|
```
|
|
enp3s0=off # disabled
|
|
```
|
|
|
|
|
|
|