Re: UDP and Dest Unreachable, Port Unreachables

[Andi Kleen <ak@xxxxxx>]

On Tue, Feb 20, 2001 at 01:26:26AM +0100, Andrey Savochkin wrote:
> On Mon, Feb 19, 2001 at 09:56:02PM +1000, Richard Sharpe wrote:
> > I wonder what the actual semantics are for receiving UDP datagams? Will the
> > kernel receive datagrams if a socket is open with the appropriate SIP,
> > SPort, DIP, DPORT combination, or, does there have to be a read scheduled,
> > either via a select, or an actual read?
> 
> The datagrams should be received and queued regardless of whether some
> process executed select or read.

... except when the socket buffer overflows, but even then it shouldn't 
send a ICMP. ICMP means that the socket is closed or was not bound to a
matching address 


-Andi

-- 
This is like TV. I don't like TV.