(RADIATOR) unknown ports

[Jim Liebgott]

Ronan Eckelberry wrote:
> 
>         Most likely those ports are opened to communicate with the other
> RADIUS and/or SQL servers that you are proxying to.  Do a netstat to see
> what addresses that they are connected to.  You will probably see that
> it is the other servers.  RADIUS RECEIVES Authentication and Accounting
> requests on 1645 and 1646 (Or whatever ports you configure in your cfg
> file), but for it to proxy the info, it will have to open up another
> connection on another port to connect to the other RADIUS servers.  You
> will probably see that they are connecting to another address on port
> 1645 or 1646.

According to netstat, for each of the unusual ports that I see open, the
Remote address is "0.0.0.0.*", which on my linux system indicates that
the port is bound locally and accepting connections.  UDP ports that are
bound on both ends rarely show up in netstat, because they are
ephemeral.  These port bindings are persistent, lasting about a day.

> -----Original Message-----
> From: owner-radiator at open.com.au [mailto:owner-radiator at open.com.au] On
> Behalf Of Jim Liebgott
> Sent: Thursday, 07 March, 2002 13:21
> To: radiator at open.com.au
> Subject: (RADIATOR) unknown ports
> 
> I use Radiator 2.18.3.  I noticed that the server binds to three UDP
> ports that aren't listed in my configuration, and appear to have random
> port numbers (all greater than 1024).  I am using both the
> authentication and accounting features, and I use <AuthBy RADIUS> to
> proxy authentication requests.  In the current incarnation of the
> daemon, it is bound to 1645 and 1646 (which is expected because I use
> those for authentication and accounting) and also 2837, 2789, and 1443.
> It seems that there are always three ports, but the port numbers change
> over time (it takes perhaps a day to notice a change).  Is this a normal
> part of a radius server and/or a normal part of Radiator?  It seems a
> bit strange to me that the server is bound to ports that don't appear to
> be in use.
> ===
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