[ip-pool]
Configuration of ippool module.
gw-ip-address=x.x.x.x
Specifies single IP address to be used as local address of ppp interfaces.
gw=range
Range format should be
x.x.x.x/mask
orx.x.x.x-y
Specifies range of local address of ppp interfaces.
tunnel=range
Specifies range of remote address of ppp interfaces, format is same as above.
x.x.x.x/mask,pool_name | x.x.x.x-y,pool_name
Also specifies range of remote address of ppp interfaces.