27.3 ʹÓÃÄں˼¶PPP

Parts originally contributed by Gennady B. Sorokopud ºÍ Robert Huff.

¾¯¸æ: Õâ½ÚÄÚÈÝÖ»ÔÚ FreeBSD 7.X ÉÏ¿ÉÓá£

27.3.1 ÉèÁ¢Äں˼¶PPP

¡¡¡¡ÔÚ¿ªÊ¼ÅäÖà PPP ֮ǰ£¬ ÇëÈ·ÈÏ pppd ÒѾ­´æ·ÅÔÚ /usr/sbin ÖУ¬ ²¢ÇÒ /etc/ppp Ŀ¼ÊÇ´æÔڵġ£

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  1. ×÷Ϊһ¸ö ¡°¿Í»§¡± ©¤©¤ ÄúҪͨ¹ýPPP´®ÐÐÏß»òmodemÏß°ÑÄúµÄ»úÆ÷Á¬½Óµ½»¥ÁªÍøÉÏ¡£

  2. ×÷Ϊ¡°·þÎñÆ÷¡± ©¤©¤¼ÆËã»úÒѾ­Î»ÓÚÍøÂçÉÏ£¬ ÇÒ±»ÓÃÓÚͨ¹ýPPPÓëÆäËü¼ÆËã»úÁ¬½Ó¡£

¡¡¡¡Á½ÖÖÇé¿öÄú¶¼ÐèÒªÉèÁ¢Ò»¸öÑ¡ÏîÎļþ£¬ (/etc/ppp/options »òÕßÊÇ ~/.ppprc Èç¹ûÄúµÄ¼ÆËã»úÓжà¸öÓû§Ê¹ÓÃPPP)¡£

¡¡¡¡Äú»¹ÐèҪһЩmodem/serialÈí¼þ(comms/kermit¾ÍºÜÊʺÏ)£¬ ʹÄúÄܹ»²¦ºÅ²¢ÓëÔ¶³ÌÖ÷»ú½¨Á¢Á¬½Ó¡£

27.3.2 ʹÓÃpppd×÷Ϊ¿Í»§¶Ë

Based on information provided by Trev Roydhouse.

¡¡¡¡ÏÂÃæÕâ¸ö /etc/ppp/optionsÑ¡ÏîÎļþÄܹ»±»ÓÃÀ´ÓëCISCOÖÕ¶Ë·þÎñÆ÷µÄ PPPÏßÁ¬½Ó¡£

crtscts         # enable hardware flow control
modem           # modem control line
noipdefault     # remote PPP server must supply your IP address
                # if the remote host does not send your IP during IPCP
                # negotiation, remove this option
passive         # wait for LCP packets
domain ppp.foo.com      # put your domain name here

:remote_ip    # put the IP of remote PPP host here
                # it will be used to route packets via PPP link
                # if you didn't specified the noipdefault option
                # change this line to local_ip:remote_ip

defaultroute    # put this if you want that PPP server will be your
                # default router

¡¡¡¡Á¬½Ó£º

  1. ʹÓà Kermit (»òÆäËû modem ³ÌÐòÀ´²¦ºÅ)£¬ È»ºóÊäÈëÄúµÄÓû§ÃûºÍ¿ÚÁî (»òÔÚÔ¶³ÌÖ÷»úÉÏÆôÓà PPP ËùÐèµÄÆäËûÐÅÏ¢)¡£

  2. Í˳ö Kermit (²¢²»¹Ò¶ÏÁ¬½Ó)¡£

  3. ¼üÈëÏÂÃæÕâÐУº

    # /usr/sbin/pppd /dev/tty01 19200
    

    Ò»¶¨ÒªÊ¹ÓÃÕýÈ·µÄËٶȺÍÉ豸Ãû¡£

¡¡¡¡ÏÖÔÚÄúµÄ¼ÆËã»úÒѾ­ÓÃPPPÁ¬½Ó¡£ Èç¹ûÁ¬½Óʧ°Ü£¬ Äú¿ÉÔÚÎļþ /etc/ppp/options ÖÐÌí¼Ó debug Ñ¡Ï ²¢²é¿´¿ØÖÆÌ¨ÐÅÏ¢ÒÔ¸ú×ÙÎÊÌâ¡£

¡¡¡¡ÏÂÃæÕâ¸ö/etc/ppp/pppup½Å±¾ÄÜ×Ô¶¯Íê³ÉÕâÈý¸ö²½Ö裺

#!/bin/sh
pgrep -l pppd
pid=`pgrep pppd`
if [ "X${pid}" != "X" ] ; then
        echo 'killing pppd, PID=' ${pid}
        kill ${pid}
fi
pgrep -l kermit
pid=`pgrep kermit`
if [ "X${pid}" != "X" ] ; then
        echo 'killing kermit, PID=' ${pid}
        kill -9 ${pid}
fi

ifconfig ppp0 down
ifconfig ppp0 delete

kermit -y /etc/ppp/kermit.dial
pppd /dev/tty01 19200

¡¡¡¡/etc/ppp/kermit.dial ÊÇÒ»¸ö Kermit ½Å±¾£¬ Ëü»áÍê³É²¦ºÅ£¬ ²¢ÔÚÔ¶³ÌÖ÷»úÉÏÍê³ÉËùÓÐÐèÒªµÄÉí·ÝÑéÖ¤¹ý³Ì (Õâ·ÝÎĵµµÄ×îºóÓÐÒ»¸ö½Å±¾ÊµÀý)¡£

¡¡¡¡Ê¹ÓÃÏÂÃæÕâ¸ö½Å±¾/etc/ppp/pppdown¶Ï¿ªPPPÁ¬Ïߣº

#!/bin/sh
pid=`pgrep pppd`
if [ X${pid} != "X" ] ; then
        echo 'killing pppd, PID=' ${pid}
        kill -TERM ${pid}
fi

pgrep -l kermit
pid=`pgrep kermit`
if [ "X${pid}" != "X" ] ; then
        echo 'killing kermit, PID=' ${pid}
        kill -9 ${pid}
fi

/sbin/ifconfig ppp0 down
/sbin/ifconfig ppp0 delete
kermit -y /etc/ppp/kermit.hup
/etc/ppp/ppptest

¡¡¡¡Í¨¹ýÖ´ÐÐ/usr/etc/ppp/ppptest£¬ ¿´¿´pppd ÊÇ·ñÈÔÔÚÔËÐУº

#!/bin/sh
pid=`pgrep pppd`
if [ X${pid} != "X" ] ; then
        echo 'pppd running: PID=' ${pid-NONE}
else
        echo 'No pppd running.'
fi
set -x
netstat -n -I ppp0
ifconfig ppp0

¡¡¡¡Ö´Ðнű¾ /etc/ppp/kermit.hupÒÔ¹ÒÆðmoderm£¬ Õâ¸öÎļþ°üº¬£º

set line /dev/tty01	; put your modem device here
set speed 19200
set file type binary
set file names literal
set win 8
set rec pack 1024
set send pack 1024
set block 3
set term bytesize 8
set command bytesize 8
set flow none

pau 1
out +++
inp 5 OK
out ATH0\13
echo \13
exit

¡¡¡¡Ò²¿ÉÒÔÓÃchat ´úÌækermit£º

¡¡¡¡ÒÔÏÂÁ½¸öÎļþÓÃÒÔ½¨Á¢pppdÁ¬½Ó¡£

¡¡¡¡/etc/ppp/options£º

/dev/cuad1 115200

crtscts		# enable hardware flow control
modem		# modem control line
connect "/usr/bin/chat -f /etc/ppp/login.chat.script"
noipdefault	# remote PPP serve must supply your IP address
	        # if the remote host doesn't send your IP during
                # IPCP negotiation, remove this option
passive         # wait for LCP packets
domain your.domain	# put your domain name here

:		# put the IP of remote PPP host here
	        # it will be used to route packets via PPP link
                # if you didn't specified the noipdefault option
                # change this line to local_ip:remote_ip

defaultroute	# put this if you want that PPP server will be
	        # your default router

¡¡¡¡/etc/ppp/login.chat.script£º

×¢Òâ: ÒÔϵÄÄÚÈÝÓ¦¸Ã·ÅÔÚÒ»ÐÐÄÚ¡£

ABORT BUSY ABORT 'NO CARRIER' "" AT OK ATDTphone.number
  CONNECT "" TIMEOUT 10 ogin:-\\r-ogin: login-id
  TIMEOUT 5 sword: password

¡¡¡¡Ò»µ©ÕâЩ±»°²×°ÇÒÐÞ¸ÄÕýÈ·£¬ ÄúËùÒª×öµÄ¾ÍÊÇÔËÐÐpppd£¬ ¾ÍÏñÕâÑù£º

# pppd

27.3.3 ʹÓÃpppd×÷Ϊ·þÎñÆ÷

¡¡¡¡/etc/ppp/optionsÒª°üÀ¨ÏÂÃæÕâЩÄÚÈÝ£º

crtscts                         # Hardware flow control
netmask 255.255.255.0           # netmask (not required)
192.114.208.20:192.114.208.165  # IP's of local and remote hosts
                                # local ip must be different from one
                                # you assigned to the Ethernet (or other)
                                # interface on your machine.
                                # remote IP is IP address that will be
                                # assigned to the remote machine
domain ppp.foo.com              # your domain
passive                         # wait for LCP
modem                           # modem line

¡¡¡¡ÏÂÃæÕâ¸ö½Å±¾/etc/ppp/pppserv ʹpppdÒÔ·þÎñÆ÷·½Ê½Æô¶¯£º

#!/bin/sh 
pgrep -l pppd
pid=`pgrep pppd`
if [ "X${pid}" != "X" ] ; then
        echo 'killing pppd, PID=' ${pid}
        kill ${pid}
fi
pgrep -l kermit
pid=`pgrep kermit`
if [ "X${pid}" != "X" ] ; then
        echo 'killing kermit, PID=' ${pid}
        kill -9 ${pid}
fi

# reset ppp interface
ifconfig ppp0 down
ifconfig ppp0 delete

# enable autoanswer mode
kermit -y /etc/ppp/kermit.ans

# run ppp
pppd /dev/tty01 19200

¡¡¡¡Ê¹Óýű¾/etc/ppp/pppservdownÍ£Ö¹·þÎñÆ÷£º

#!/bin/sh
pgrep -l pppd
pid=`pgrep pppd`
if [ "X${pid}" != "X" ] ; then
        echo 'killing pppd, PID=' ${pid}
        kill ${pid}
fi
pgrep -l kermit
pid=`pgrep kermit`
if [ "X${pid}" != "X" ] ; then
        echo 'killing kermit, PID=' ${pid}
        kill -9 ${pid}
fi
ifconfig ppp0 down
ifconfig ppp0 delete

kermit -y /etc/ppp/kermit.noans

¡¡¡¡ÏÂÃæµÄ Kermit ½Å±¾ (/etc/ppp/kermit.ans) Äܹ»ÆôÓÃ/½ûÓÃÄú modem µÄ×Ô¶¯Ó¦´ðģʽ¡£ ÆäÄÚÈÝÀàËÆÏÂÃæÕâÑù£º

set line /dev/tty01
set speed 19200
set file type binary
set file names literal
set win 8
set rec pack 1024
set send pack 1024
set block 3
set term bytesize 8
set command bytesize 8
set flow none

pau 1
out +++
inp 5 OK
out ATH0\13
inp 5 OK
echo \13
out ATS0=1\13   ; change this to out ATS0=0\13 if you want to disable
                ; autoanswer mode
inp 5 OK
echo \13
exit

¡¡¡¡Ò»¸öÃûΪ/etc/ppp/kermit.dialµÄ½Å±¾ÓÃÓÚÏòÔ¶³ÌÖ÷»ú ½øÐв¦ºÅºÍÑéÖ¤¡£ ÄúÒª¸ù¾ÝÐèÒª¶¨ÖÆËü¡£ Òª¼ÓÈëÄúµÄµÇѰÃûºÍÃÜÂ룬 Äú»¹Òª¸ù¾Ý modem ºÍÔ¶³ÌÖ÷»úµÄ·´Ó¦ÐÞ¸ÄÊäÈëÓï¾ä¡£

;
; put the com line attached to the modem here:
;
set line /dev/tty01
;
; put the modem speed here:
;
set speed 19200
set file type binary            ; full 8 bit file xfer
set file names literal
set win 8
set rec pack 1024
set send pack 1024
set block 3
set term bytesize 8
set command bytesize 8
set flow none
set modem hayes
set dial hangup off
set carrier auto                ; Then SET CARRIER if necessary,
set dial display on             ; Then SET DIAL if necessary,
set input echo on
set input timeout proceed
set input case ignore
def \%x 0                       ; login prompt counter
goto slhup

:slcmd                          ; put the modem in command mode
echo Put the modem in command mode.
clear                           ; Clear unread characters from input buffer
pause 1
output +++                      ; hayes escape sequence
input 1 OK\13\10                ; wait for OK
if success goto slhup
output \13
pause 1
output at\13
input 1 OK\13\10
if fail goto slcmd              ; if modem doesn't answer OK, try again

:slhup                          ; hang up the phone
clear                           ; Clear unread characters from input buffer
pause 1
echo Hanging up the phone.
output ath0\13                  ; hayes command for on hook
input 2 OK\13\10
if fail goto slcmd              ; if no OK answer, put modem in command mode

:sldial                         ; dial the number
pause 1
echo Dialing.
output atdt9,550311\13\10               ; put phone number here
assign \%x 0                    ; zero the time counter

:look
clear                           ; Clear unread characters from input buffer
increment \%x                   ; Count the seconds
input 1 {CONNECT }
if success goto sllogin
reinput 1 {NO CARRIER\13\10}
if success goto sldial
reinput 1 {NO DIALTONE\13\10}
if success goto slnodial
reinput 1 {\255}
if success goto slhup
reinput 1 {\127}
if success goto slhup
if < \%x 60 goto look
else goto slhup

:sllogin                        ; login
assign \%x 0                    ; zero the time counter
pause 1
echo Looking for login prompt.

:slloop
increment \%x                   ; Count the seconds
clear                           ; Clear unread characters from input buffer
output \13
;
; put your expected login prompt here:
;
input 1 {Username: }
if success goto sluid
reinput 1 {\255}
if success goto slhup
reinput 1 {\127}
if success goto slhup
if < \%x 10 goto slloop         ; try 10 times to get a login prompt
else goto slhup                 ; hang up and start again if 10 failures

:sluid
;
; put your userid here:
;
output ppp-login\13
input 1 {Password: }
;
; put your password here:
;
output ppp-password\13
input 1 {Entering SLIP mode.}
echo
quit

:slnodial
echo \7No dialtone.  Check the telephone line!\7
exit 1

; local variables:
; mode: csh
; comment-start: "; "
; comment-start-skip: "; "
; end:

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