Userland ppp and i4b problems

[Brad du Plessis]

Hi

I'm trying to setup user-ppp over i4b in NetBSD. I know this is a FreeBSD list 
but no one seems to be able to help me on the NetBSD lists.

User ppp needs a raw channel from I4B and in FreeBSD from what I've read the 
usrdevicename in isdnd.rc has to be 
		usrdevicename = rbch

Now NetBsd-current doesn't have the i4brbch0 & 1 devices so I assume that 
/dev/isdnbchan0 & /dev/isdnbchan1 are the equivalents.

I've set up isdnd to use isdnbchan0 and isdnbchan1 but when I set it as the 
device for user-ppp and try and run a dialin to another box over an isdn 
emulator I get the following error message:

tcsetattr : Failed configuring device

Can someone confirm whether or not this is the equivalent of the rbch device 
in FreeBSD? Does anyone know what I can do to get this to work?

The idea is to try and do channel bonding between the two systems and this is 
the only way I know of to do it.

By the way, does anyone know how to do channel bonding with standard TA's (in 
particular a 3Com USB ISDN TA). I don't know if I've been looking in the 
wrong places, but there doesn't seem to be any documentation on this.

Any help would be most appreciated.

Thanks
 Brad