[pppd-compat]
Configuration of pppd_compat module. Often used for creation custom shaper or other custom tricks. This module starts pppd compatible ip-up/ip-down scripts and ip-change to handle RADIUS CoA request.
Config overview
- verbose=0|1
- Default value is - verbose=0- If specified and greated then 0, pppd_module will produce verbose logging. 
- radattr-prefix=/path
- By default is not defined. - Specifies prefix of radattr files (for example - radattr=/var/run/radattr, resulting files will be- /var/run/radattr.pppX)
- ip-pre-up=/path/to/file
- By default is not defined. - Path to ip-pre-up script which is executed before ppp interface comes up, useful to setup firewall rules before any traffic can pass through the interface. 
- ip-up=/path/to/file
- By default is not defined. - Path to ip-up script which is executed when ppp interfaces is completely configured and started. 
- ip-down=/path/to/file
- By default is not defined. - Path to ip-down script which is executed when session is about to terminate. 
- ip-change=/path/to/file
- By default is not defined. - Path to ip-change script which is executed for RADIUS CoA handling. 
- fork-limit=n
- By default is calculated - threads*2- Specifies number of simultaneously running background processes. For disable this feature need set - fork-limit=0