Re: udp packet storms
Chris Ellwood (cellwood@gauss.ELEE.CalPoly.EDU)
Sat, 29 Oct 1994 18:48:11 -0700 (PDT)
Tim Newsham said...
> There's at least one way to make a UDP packet storm. Not
> very hard to do:
>
> src address = 255.255.255.255 port 7
> dst address = <some host> port 7
>
> the port will be echoed by the inetd (echo port) back to the
> sender (255.255.255.255 port 7). Each machine with an inetd
> that has echo enabled will echo the packet back to the first
> machine.
This is yet another reason why you should disable echo, discard,
chargen, and any other inetd tcp/udp debugging service. It's
surprising how many people leave those in inetd.conf.
- Chris