Vernon Schryver
vjs@calcite.rhyolite.com
Mon Apr 17 21:45:40 UTC 2006
> To: <dcc@calcite.rhyolite.com> > > gets past the rudimentary checking in the DCC code. > > 255.255.255.255 is one that seems to work. > > Or even 192.0.2.0/24 . The "test" or "manufacturer's default" IP address that Jon or Joyce assigned 20 years ago to stop the abuse of net-89 and other real networks numbers would be better than an RFC 1918 address. Still it would not be as good as a completely invalid address. Someone might be using 192.0.2.0/24 on some real, internal SMTP server just as they used net-89 and so forth. No SMTP/TCP/IP packets should ever be seen with multicast or broadcast source addresses, at least not past the filtering done by any reasonable IP implementation of the last 10 or 15 years. If you don't like 255.255.255.255, then how about something in 224.0.0.0/8? Vernon Schryver vjs@rhyolite.com
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