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SubjectRe: Some tests (Was: Probable bug in handling disabled network interfaces (2.2.12))
On Mon, 20 Sep 1999 kuznet@ms2.inr.ac.ru wrote:

> Seems, the confusion is related to the fact, that interface has two modes
> looking absolutely similarly (except for entry in /proc/sys/net/ipv4/conf/):
> no IP and addressless IP. ifconfig 0.0.0.0 makes it addressless,
> magic sequence with adding and deleting ?rap really disables IP.

I think the biggest confusion comes from the fact that ip-adresses are not
bound to interfaces, but to the host.
When I assign an ip to i.e. dummy0 (and interface is up), I would expect
it to work from inside this host, but not from the outside, as I
would expect an address on eth0 not to be reachable on eth1 unless I use
ip_forward==1 .

After painfull hours of debugging I now think I know how it works (or not
works in my setup here), but for me it's a bug (some may call it a ugly
feature).

c'ya
sven

--

The Internet treats censorship as a routing problem, and routes around it.
(John Gilmore on http://www.cygnus.com/~gnu/)


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