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Diffstat (limited to 'Documentation/isdn/README.syncppp')
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diff --git a/Documentation/isdn/README.syncppp b/Documentation/isdn/README.syncppp new file mode 100644 index 000000000000..27d260095cce --- /dev/null +++ b/Documentation/isdn/README.syncppp @@ -0,0 +1,58 @@ +Some additional information for setting up a syncPPP +connection using network interfaces. +--------------------------------------------------------------- + +You need one thing beside the isdn4linux package: + + a patched pppd .. (I called it ipppd to show the difference) + +Compiling isdn4linux with sync PPP: +----------------------------------- +To compile isdn4linux with the sync PPP part, you have +to answer the appropriate question when doing a "make config" +Don't forget to load the slhc.o +module before the isdn.o module, if VJ-compression support +is not compiled into your kernel. (e.g if you have no PPP or +CSLIP in the kernel) + +Using isdn4linux with sync PPP: +------------------------------- +Sync PPP is just another encapsulation for isdn4linux. The +name to enable sync PPP encapsulation is 'syncppp' .. e.g: + + /sbin/isdnctrl encap ippp0 syncppp + +The name of the interface is here 'ippp0'. You need +one interface with the name 'ippp0' to saturate the +ipppd, which checks the ppp version via this interface. +Currently, all devices must have the name ipppX where +'X' is a decimal value. + +To set up a PPP connection you need the ipppd .. You must start +the ipppd once after installing the modules. The ipppd +communicates with the isdn4linux link-level driver using the +/dev/ippp0 to /dev/ippp15 devices. One ipppd can handle +all devices at once. If you want to use two PPP connections +at the same time, you have to connect the ipppd to two +devices .. and so on. +I've implemented one additional option for the ipppd: + 'useifip' will get (if set to not 0.0.0.0) the IP address + for the negotiation from the attached network-interface. +(also: ipppd will try to negotiate pointopoint IP as remote IP) +You must disable BSD-compression, this implementation can't +handle compressed packets. + +Check the etc/rc.isdn.syncppp in the isdn4kernel-util package +for an example setup script. + +To use the MPPP stuff, you must configure a slave device +with isdn4linux. Now call the ipppd with the '+mp' option. +To increase the number of links, you must use the +'addlink' option of the isdnctrl tool. (rc.isdn.syncppp.MPPP is +an example script) + +enjoy it, + michael + + + |