[ANSS-netops] Operating multiple reftek recorders behind a single static IP.

[Philip Crotwell]

Hi

Not exactly the same, but for a while I had a seismic station under my
house with a reftek. I used my home firewall/router to reroute the
ports to allow the reftek to work. The cheap consumer device worked
just fine for this. $25 is a lot less than $600!

I think the port is on the server side can be specified, but not sure
if you can have several rtp connections to the same IP on different
ports. You might be able to run several instance of rtpd on the
server, each with a different remote port, not sure.

Philip

On Tue, Jul 5, 2011 at 3:48 PM, Stephen Brewer <sbrewer1 at memphis.edu> wrote:
> Hello, I would like to ask how others may have dealt with this.
>
> We have a situation which calls for the operation of several refteks, behind
> a single static IP, DSL service. It is my understanding that the port
> numbers used for communication with the refteks, are not configurable. Is
> this really the case? If communication port numbers could be changed, the
> problem would be solved.
>
> Another possibility would be to place some sort of router/firewall, capable
> of port translation, between the DSL modem and refteks.
> Has anyone ever done anything like this?
>
> We have some small experience here, with the CISCO ASA5505 (Adaptable
> Security Appliance). This is a small, 8-port router/firewall, that I think
> would be capable of doing the port translation. The cost of such a unit
> though is about $600. Is anyone aware of a cheaper, more "consumer" grade
> product that could do this?
>
> A related question. Are the port numbers used by the various outside
> programs that talk to the reftek configurable?
> If not, then a similar firewall/router would be required at both ends.
>
> Any thoughts or suggestions are appreciated.
>
> thanks, steve.
>
> --
> Stephen Brewer   University of Memphis /ceri
>                 3890 Central Ave
>                 Memphis, TN 38152
> email: sbrewer1 at memphis.edu
> voice: (901) 678-4732   fax: (901) 678-4734
>
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