I am trying to run a kerberos KDC on a mobile system. Unfortunately, the KDC won't bind to the loopback device, and all interfaces are disabled by the operating system when they are inactive - there is no link detected. So I am trying to configure a device with a private IP address, the only purpose of which will be to connect to the local machine.
On Jan 15, 2004, at 12:47 PM, Michael W. Oliver wrote:
On Thu, Jan 15, 2004 at 03:07:20PM -0500, Robert Watson wrote:
On Thu, 15 Jan 2004, Vlad Galu wrote:
|On Tue, 13 Jan 2004 [EMAIL PROTECTED] wrote:
|
|> How does one create a dummy network interface in FreeBSD?
|
|Dummy in what sense? An interface where the packets are simply
|dropped? if_tap and if_tun both provide pseudo-device in /dev that a
|userspace process can attach to in order to emulate a network interface
|(used by VMWare, ppp, various tunneling bits, ...) In the absense of a
|process sitting on the device, they simply drop the packets. Although
|they may get garbage-collected if unused on -CURRENT... You can also
|use netgraph to bring pseudo-interfaces, perhaps without anywhere for
|packets to go.
|
|And, I suppose, create in what sense? Are you looking at this from a
|developer perspective, or you just need one from a user perspective.
|If writing a device driver (and hence needing a starting point), if_tap
|and if_tun are fairly decent models for a pseudo-interface.
I think he could use the discard interface smoothly. On Linux
(from which the dummy interface notion is taken from) it is simply used
for testing purposes, as in routing, or perhaps socket programming. I
personally have used it for a while, but then I used interface aliasing,
which became a habit.
Does the discard interface in Linux "act like" another type of interface,
such as point-to-point, ethernet, etc?
I believe that he was referring to the discard interface in FreeBSD. I don't know about Linux at all, but I have used the discard interface in a FreeBSD router much like a Null interface in a cisco router.
pseudo-device disc
man 4 disc
-- Mike perl -e 'print unpack("u","88V]N=&%C=\"!I;F9O(&EN(&AE861E<G,*");'
_______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
