[dns-operations] ip id from servers

[Rick Jones]

Colm MacCárthaigh wrote:
> Those are pretty busy servers - and with a 16-bit ID, it only takes
> about about 300 occurrences before a duplication is more likely than
> not (The Birthday problem/ binomial distribution).


And back in the early 90's I used to think it was bad that "Frankengrams" could 
be created after only 64K IP datagrams.  Now it is possible with only 300. 
Progress...

rick jones