Re: ip_local_port_range

From: Andi Kleen (ak@muc.de)
Date: Sat Apr 01 2000 - 12:08:57 EST


davem@redhat.com (David S. Miller) writes:

> From: "Albert D. Cahalan" <acahalan@cs.uml.edu>
> Date: Sat, 1 Apr 2000 02:57:28 -0500 (EST)
>
> The Well Known Ports are those from 0 through 1023.
> The Registered Ports are those from 1024 through 49151.
> The Dynamic and/or Private Ports are those from 49152 through 65535.
>
> So a range of 51024 to 54999 would be OK to use.
> There are hundreds or thousands of services registered
> in the current Linux range.
>
> Hmmm, Solaris seems to use such a range too.
>
> Ok, this needs to be fixed then. Thanks for making
> us aware of the issue.

The problem of changing the default range is that'll surely
cause problems with lots of poorly configured packet filters (leading
to bogus bug reports).

AFAIK FreeBSD tried to switch ranges in the past, but they had to
go back because of such problems.

-Andi

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

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