How to assign specified PPP interface?

Hi all,

If I didn't make any specified configuration, when the first PPTP client 
connects to pptpd server,
pppd will assign ppp0 to this PPTP client automatically, such as the message 
showed below:

# ifconfig ppp0
ppp0      Link encap:Point-to-Point Protocol
          inet addr:192.168.44.1  P-t-P:192.168.44.10  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1400  Metric:1
          RX packets:19 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:64
          RX bytes:1520 (1.4 KiB)  TX bytes:100 (100.0 B)

But I would like to assign the specified PPP interface starting from ppp3,
would you please tell me how to do this? no matter by configuration file,
or by re-modify the source code. Any help will be appreciated.

Best Regards,
JC Tsai 




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