̾??

i4bipr —

ISDN B ?????ͥ????Ѥ??? IP ?????Τ????? isdn4bsd ?ͥåȥ???ɥ饤??

FreeBSD ?Ǥν???

pseudo-device "i4bipr" [count]

NetBSD ?Ǥν???

?ʤ?

????

i4bipr ?ɥ饤?Фϡ????ڥ졼?ƥ??󥰥????ƥ????? IP ???֥????ƥ??? isdn4bsd ?ѥå????????????򤹤뤳?Ȥˤ??äơ?ISDN ??³???Ѥ??? IP ?ѥ??åȤ? ????????ǽ?ˤ??ޤ???

???Υɥ饤?Фϡ???Ƭ???????˲????ɲä????? IP ?ѥ??åȤ? B ?????ͥ??? HDLC ?ѥ??åȤ˺ܤ??ƥ??⡼?ȥ????Ȥ????????ޤ??? ???⡼?ȥ????Ȥ??????????줿 IP ?ѥ??åȤϥ????????? IP ?ץ??ȥ??? ?????å????ɲä????ޤ???

B ?????ͥ??˺ܤ????줿?ѥ??åȤΥե????ޥåȤϼ??Τ褦?ˤʤ??ޤ?:

(HDLC ???ϥե饰)
  (IP ?ѥ??å?) (CRC) (HDLC
  ??λ?ե饰)

???⡼?ȥ????Ȥؤ? IP ?ѥ??åȤ??ɥ饤?Ф??Ϥ????Τˤ????ؤ???³?? ̤??Ω?Ǥ????Ȥ??ˤϡ????Υɥ饤?Ф? isdnd(8) ?ǡ????????̿???????³????Ω???ޤ???

ipr ???󥿥ե????????Ф??? tcpdump(1) ???ޥ??ɤ??Ȥ????褦?ˤ??뤿???ˡ????Υɥ饤?Ф? bpf(4) ???֥????ƥ????̿??Ǥ??ޤ???

???Υɥ饤?Ф? (IPR_VJ ???ץ????????դ??ƥ????ѥ??뤵???Ƥ????Ȥ?) Van Jacobsen ?إå????̤ε?ǽ???????ޤ????????? ifconfig(8) ?? link0 ?????? link1 ???ץ????????Ȥä??????Ǥ??ޤ?:

link0: ???Υ??󥿥ե????????????????ѥ??åȤ? VJ ???̤??ܤ????????ѥ??åȤ? ??Ĺ??????ɬ?פ??????Ȳ??ꤷ?ޤ???
link1: ?????ѥ??åȤ? Van Jacobsen ???̤??ʤ????Ƥ??뤫?ɤ????????å????ޤ?; ???̤????Ƥ????Ȼפ??????Ȥ??ϼ?ưŪ?? link0 ?????åȤ????ޤ???

?ǥե????ȤǤ? link1 ?? on ?? link0 ?? off ?Ǥ???

??Ϣ????

isdnd(8) isdnd.rc(5) bpf(4) tcpdump(1)

????

i4bipr ?ǥХ????ɥ饤?ФȤ??Υޥ˥奢???ڡ????? Hellmuth Michaelis ?? ???????ޤ?????hm@kts.org ??????Ϣ???Ǥ??ޤ???