Re: Email data type

From: "Bort, Paul" <pbort(at)tmwsystems(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Email data type
Date: 2004-05-17 16:00:30
Message-ID: 735D404BD9E7EB44B9CDFC27FC88809B01C4D94A@mail2.tmwsystems.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers


> From: Gaetano Mendola [mailto:mendola(at)bigfoot(dot)com]
>
> I think I have to discard also the addresses with last octet
> equal to 256.
>
> Any comments ?
>

Any octet that contains a number less than 0 or greater than 255 should be
suspect.

Assuming you really meant 255:

It would be perfectly legal for an entity on the internet to have a block of
addresses with a subnet mask of less than 24 bits, which leads to legal
addresses that end in 255.

For example, if your company/university/black helicopter squad needed about
500 servers with direct presence, you might be assigned a block like
123.45.6.0/23. So the network address would be 123.45.6.0, the broadcast
address would be 123.45.7.255, and everything in between, including
123.45.6.255 and 123.45.7.0, would be available for your servers.

HTH,

Paul

Browse pgsql-hackers by date

  From Date Subject
Next Message Dave Page 2004-05-17 16:01:05 Re: Email data type
Previous Message Steve Atkins 2004-05-17 15:45:47 Re: Email data type