linux-ppp，您好！
the following is the description about ppp in the Readme of linux PPPD:
the kernel module assembles/disassembles PPP frames, handles error
detection, and forwards packets between the serial port and either the
kernel network code or the user-level program pppd. IP packets go
directly to the kernel network code. So once pppd has negotiated the
link, it in practice lies completely dormant until you want to take
the link down, when it negotiates a graceful disconnect.
question:
1.after pppd has negotiated the link ,what it tell information to the kernel network ppp code ,
which make kernel transmit IP packets directly?
2. where to receive the IP packets from ppp kernel ? how to know the ip packet come from not other
device but PPP?
致
礼！
梁红军
hjliang@xxxxxxxxxxxxxxxx
2008-04-24
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