Two PPP connections to the same ISP with same remote gateway

[Tom Jobbins]

Thanks for replying, Daniel


This is really odd, because I don't see this on my machines (as per our
> discussion on IRC which you mention below), I did..
>
> midget# cat /dev/tun &
> [1] 21524
> midget# cat /dev/tun &
> [2] 21525



I've isolated the difference.   If I repeat exactly what you do - including
the two cat /dev/tun commands - then it works for me too.   So long as the
tun0 and tun1 interfaces are created with a cat /dev/tun &, I am able to
give them matching remote gateway addresses.

However this is not the case when the interfaces are created any other way,
i.e. via ppp.  Ditto ng0/ng1 created by mpd.

Also, if I then kill the cat /dev/tun commands, leaving tun0 and tun1
existing, but unopened, I am then no longer able to set the matching
gateway.   And if I don't kill the cat commands, ppp can't use those tun
devices because another process has them open.

So it would appear this was just a dead end.  I don't know whats different
about an interface created with the cat command - perhaps as it's not
connected to a real network utility, the normal route checking does not
apply?

If you - or anyone else - has any more ideas as to what I can try to make
this work, I would be most grateful.  It's incredibly frustrating to be
limited in this way, given that I'm almost certain that ipfilters
source-based routing will get around any routing issues if I could only
bring the interfaces up.


Thanks


Tom