How to can I capture PPP packets in Linux ?

[bmahapatra]

hi

I have an PPP interface set up in my Linux server.
I want to run different IP based applications like
Ping/FTP on this interface. Now I don't want the PPP
to connect to modem to transfer the packets rather
I want that the PPP packets can be given back to
an application where it can be sent over IP again.

This way I can make my TCP/IP/PPP stack run over
different other protocol stacks for example. In this
case I would like to send the PPP packets over a
IP interface (raw socket with IPPROTO_GRE family)
to the peer entity.

Can anyone please help me how to go about it ?

regards
bmahapatra

 

[Norwich]

Not sure, but pppoe may be of some interest - "PPPOverEthernet".

http://www.faqs.org/rfcs/rfc2516.html