[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: [cobalt-users] Email monitoring; Internet access restriction



Seth,

> Any ethernet to ISDN router will do.
> I have used 771 and 775 cisco models at work.
> But I have also hooked up a external ISDN TA to the serial port.

I noticed that the Ciscos will do dynamic bandwidth allocation;
I assume that this means use both B channels if available, but
drop one (or even both) temporarily if voice calls go in or out
based on user preference. (Please let me know if this is right).
But would an external TA do this, or would it expect the user to
generate the multilink/drop channel instructions some way? I
must confess to being rather ISDN ignorant, but I'm working to
fix that.

How do I find out whether I need an S/T interface or a U interface
on the router? I assume that the only people qualified to tell
me this are the techs from the telco that will install the line,
right?

Also, based on your knowledge of the market today, can you (off
the top of your head) recommend any particular brands/models
that I should research? ISDN not being that common, I'm having
a little bit more difficulty self-educating myself than on
other topics.

> The qube has a intergrated firewalling system in the 
> administrator menu just for that problem.

While I'm hanging my head in shame for having forgotten this,
I should note that when I first got my Qube, I saw the firewall
section but could find no docs on how to use it, how to create
or edit rules, etc. Could you point me in some useful direction?
I will of course continue looking on my own...

------
Rodolfo J. Paiz
rpaiz@xxxxxxxxxxxxxx <mailto:rpaiz@xxxxxxxxxxxxxx>