[Ns-bugs] [Bug 188] global routing does not handle ip aliasing

[bugzilla-daemon@nsnam-www.ece.gatech.edu]

http://www.nsnam.org/bugzilla/show_bug.cgi?id=188





------- Comment #6 from craigdo at ee.washington.edu  2008-06-10 11:37 -------
Comment from Tom:

> What happens here is that the first set of IP address assignments using
> Ipv4AddressHelper::Assign() on a collection of two net devices works as
> expected.  The second assignment is expected to add a second interface to
> the first node, but the helper uses FindInterfaceForDevice to determine if
> there already exists an interface talking to the device.  There is an
> existing interface in this case, so a new one is not created and the helper
> simply changes/overwrites the old IP address with the new one.  

FWIW, I think that the helper should raise a warning or assert when this 
condition arises, because it is much more likely that this type of 
network assignment is a programming error.

If/when we decide we want to support this, maybe the low-level API 
should be required.


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