On Wed, Dec 01, 1999 at 02:56:50PM +0200, Iusty Pop Daniel wrote:
> Nowadays there is an increased number of network cards which only
> receive data - DVB-MPEG sattelite encapsulation of IP packets (which I
> use), DirecPC, etc. ...
Physical limitation of the card, or conceptually?
> ... Isn't there anything that should be adjusted in the linux
> kernel so that it knows that some cards are receive (or maybe send)
> only? So that /proc/sys/net/ipv4/conf/*/rp_filter doesn't warn you
> if it receives packets from that iface when the default route is
> through a normal interface? Or maybe some other things, I don't
> know, but I feel like they (the receive only ifaces) should be
> treated a little differently.
Remember that the default route is used for networks that we don't
know a route for, not just blindly as an output interface.
For example, if you have two networks A & B and your default route
is out A, you will still have a route for the B subnet and all your
traffic for anything on B will go through the B interface.
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