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

[Stephen Brewer]

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