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59 lines
2.1 KiB
Text
59 lines
2.1 KiB
Text
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Some additional information for setting up a syncPPP
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connection using network interfaces.
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---------------------------------------------------------------
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You need one thing beside the isdn4linux package:
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a patched pppd .. (I called it ipppd to show the difference)
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Compiling isdn4linux with sync PPP:
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-----------------------------------
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To compile isdn4linux with the sync PPP part, you have
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to answer the appropriate question when doing a "make config"
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Don't forget to load the slhc.o
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module before the isdn.o module, if VJ-compression support
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is not compiled into your kernel. (e.g if you have no PPP or
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CSLIP in the kernel)
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Using isdn4linux with sync PPP:
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-------------------------------
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Sync PPP is just another encapsulation for isdn4linux. The
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name to enable sync PPP encapsulation is 'syncppp' .. e.g:
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/sbin/isdnctrl encap ippp0 syncppp
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The name of the interface is here 'ippp0'. You need
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one interface with the name 'ippp0' to saturate the
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ipppd, which checks the ppp version via this interface.
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Currently, all devices must have the name ipppX where
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'X' is a decimal value.
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To set up a PPP connection you need the ipppd .. You must start
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the ipppd once after installing the modules. The ipppd
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communicates with the isdn4linux link-level driver using the
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/dev/ippp0 to /dev/ippp15 devices. One ipppd can handle
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all devices at once. If you want to use two PPP connections
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at the same time, you have to connect the ipppd to two
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devices .. and so on.
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I've implemented one additional option for the ipppd:
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'useifip' will get (if set to not 0.0.0.0) the IP address
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for the negotiation from the attached network-interface.
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(also: ipppd will try to negotiate pointopoint IP as remote IP)
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You must disable BSD-compression, this implementation can't
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handle compressed packets.
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Check the etc/rc.isdn.syncppp in the isdn4kernel-util package
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for an example setup script.
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To use the MPPP stuff, you must configure a slave device
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with isdn4linux. Now call the ipppd with the '+mp' option.
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To increase the number of links, you must use the
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'addlink' option of the isdnctrl tool. (rc.isdn.syncppp.MPPP is
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an example script)
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enjoy it,
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michael
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