Re: udp packet storms

[cellwood () gauss ELEE CalPoly EDU (Chris Ellwood)]

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