Network Operators and smurf

Sat Apr 25 16:49:25 UTC 1998

The other extreme is that, what if you are singly-homed? Then it is
useless again.

My point is, I would guess that if you are not single-homed (in which case
this is useless), you are multi-homed, and your traffic probably isn't
symmetrical. 

Therefore, I think this feature is of limited usefullness.

> It would prevent simple spoofing, yes, but that would not
> eliminate the Smurf attacks since to mount a Smurf attack you
> need to use the victim's address as your source address, and that
> one *is* typically "valid" according to the criteria you mention
> above (?).

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