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这是ppp的源代码 这是ppp的源代码

Installation of pppsetup!
------------------------------

To install the compiled ppp, run 'make install'.

To compile ppp.c run 'make clean' 'make', then 'make install' as root.

Now run 'ppp -s' as root and answer the four questions, login
name, password, isp phone number, and modem device.

You'll be asked where your modem device is, answer
ttyS[0-3].

ttyS0 = com1 under dos
ttyS1 = com2 under dos
ttyS2 = com3 under dos
ttyS3 = com4 under dos

The files created when you run 'ppp -s' are '/etc/ppp/options,
chat-script, pap-secrets, chap-secrets, and ip-up.

You should have a recent version of pppd v2.3.8 or later
in /usr/sbin.

# pppd --version
pppd version 2.4.0

There's a 'usepeerdns' option in /etc/ppp/options that tells pppd 
to try and get a dns ip address from your service provider when it 
connects, then /etc/ppp/ip-up puts it in /etc/resolv.conf.  
  
If this doesn't work for whatever reason, remove the 'usepeerdns'  
option and put a ip address of your choice in /etc/resolv.conf.  
  
nameserver 205.252.116.61   <For example>  
  
If something in the above files is not correct you can change it 
by hand, or run 'ppp -s' again.  

# ppp -h <For help!>

Run 'ppp -c' to connect and 'ppp -d' to disconnect.

When you run 'ppp -c' you'll be droped back to #, you'll hear  
the modem dialing, in about 30 seconds you should see a local  
and remote ip address printed to the screen, like this below.  
  
205.115.312.56 > 216.324.119.81 ppp0  
  
If you don't make the ppp connection take a look at the  
/var/log/messages and debug files, they should have a  
record of the attempted ppp connection.  
  
Sample /var/log/messages file.  
  
pppd[562]: Serial connection established.  
pppd[562]: Using interface ppp0  
pppd[562]: Connect: ppp0 <--> /dev/ttyS1  
pppd[562]: local IP address 215.87.78.18  
pppd[562]: remote IP address 205.94.97.35  
  
You don't have a successful ppp connection until you  
receive a local & remote ip address like above.  
  
If you have the x window system you can connect in a xterm.  
  
# startx  
# ppp -c  
# netscape  
  
If you run 'ppp -c' in x windows you'll see the local & remote ip  
address printed in a little xmessage box, if you have /usr/X11R6/  
bin/xmessage.  
  
You can run 'ifconfig' anytime to see if you're ppp connected. 
 
# ifconfig  
  
You should see something like this if you're ppp connected.  
  
ppp0   Link encap:Point-to-Point Protocol  
       inet addr:105.207.127.86  P-t-P:205.252.116.61  Mask:255.0.0.0  

Linux has some support for winmodems. 

If you have a winmodem that has a LUCENT chipset you might 
be able to get it working on linux, you have to get the 
"ltmodem-5.99b.tar.gz" or later package, see below.

You can try this to see if you have a lucent winmodem.

# cat /proc/pci   

ATTENTION! You may not have a /proc/pci, recent kernels 2.2 or
later don't have a /proc/pci unless it's asked for when the 
kernel is configured.

If you see something like this you probably have a lucent modem.

PCI devices found:
Bus  0, device  10, function  0:
Communication controller: Lucent (ex-AT&T) Microelectronics L56xMF (rev1).
Medium devsel.  Fast back-to-back capable.  IRQ 5.  Master Capable.  
No bursts.  Min Gnt=252.Max Lat=14.
Non-prefetchable 32 bit memory at 0xe6000000 [0xe6000000].
I/O at 0xe800 [0xe801].
I/O at 0xec00 [0xec01].

You can use lspci from the pciutils package to list any
pci devices, if you don't have /proc/pci.

# lspci -vv

You can get the lucent winmodem driver here.

http://walbran.org/sean/linux/stodolsk  
http://www.physcip.uni-stuttgart.de/heby/ltmodem "ltmodem-5.99b.tar.gz"

# tar xzvf ltmodem-5.99b.tar.gz   "Extract it!" 

You should have the kernel source in /usr/src/linux, if you're 
running a 2.2.19 kernel it should be the 2.2.19 source etc.

If you don't have /usr/src/linux/include/linux/autoconf.h or
version.h, do this.

/usr/src/linux# make oldconfig 
/usr/src/linux# make include/linux/version.h

ltmodem-5.99b# ./build_module     "Compile it!"
ltmodem-5.99b# ./ltinst2          "Run this script to install it!"
             # ./autoload

Have this line in your /etc/modules.conf or conf.modules file.
path=/lib/modules/`uname -r`
		    
# depmod -a           "You only need to do this once!"

# modprobe lt_modem   "Load the module!"

Run setserial and see if your lucent modem is detected, using
the first I/O above for the port and IRQ 5 for irq.

# setserial -v /dev/ttyLT0 uart 16550A port 0xe800 irq 5 

Linux does support (p)lug (n) (p)lay modems, but you may need help 
from 'isapnptools' to get your pnp modem working properly on linux.

You can get a compiled version of isapnptools from here. 

ftp://ibiblio.org/pub/Linux/system/hardware
isapnptools-1.24.bin.tgz

http://www.roestock.demon.co.uk/isapnptools   <Home page>

This is the first thing you have to do.

# pnpdump -c > /etc/isapnp.conf

Take a look at /etc/isapnp.conf to see if your pnp modem was found, and
what IRQ etc. it was found on.

# man isapnp        <Man pages for the isapnptools package>
# man isapnp.conf   <You have to read this to know how to configure
# man pnpdump        the /etc/isapnp.conf file>
 
# isapnp /etc/isapnp.conf   <After you configured the /etc/isapnp.conf 
                             file>

Run setserial for your modem to see if it's detected correctly, because
if setserial can't detect your modem correctly then nothing will.

# setserial -v /dev/ttyS1 autoconfig
  
/dev/ttyS1, UART: 16550A, Port: 0x02f8, IRQ: 3

End! (6-12-2001) Kent Robotti