[Asterisk-Dev] Re: [Asterisk-Users] Asterisk and SIP phones

[alex at pilosoft.com]

On Fri, 8 Oct 2004, Benjamin on Asterisk Mailing Lists wrote:

> lot of sense on LANs and which can be implemented with relatively modest
> effort, since all you have to do is check if both phone's addresses
> belong to the same subnet and then allow or disallow reinvites
> acordingly. That's one particular test followed by one particular
> action, pretty straightforward.
Yeah, only it wouldn't be "correct" - You have no idea if 66.250.54.1 and 
66.250.54.9 are on the same subnet (in fact, they aren't), as you have no 
idea what is the netmask in use.

-alex