routers vs WAN vs T1 vs dialup

[David Allan]

Just to throw this in there, have you thought about business grade DSL?
It's not as reliable as T1, but it's more reliable than dial up, and it's
likely to be cheaper than T1.  I'd also recommend going with the separate
router, BTW, unless you're *really* familliar with Linux, in which case
learning Cisco doesn't make much sense.  I doubt that you will get much in
the way of customer support from the ISP if you don't go with hardware
they know, and WAN problems quickly disolve into finger pointing among
providers.

Dave

On Wed, 25 Apr 2001, Mark Komarinski wrote:

> V.35 is a hardware and interface spec that defines the pins
> and their characteristics.  V.35 is (was?) pretty popular for high-speed
> serial.  HDLC is the protocol, also rather old, but popular for dedicated links
> like this.
>
> Sounds like Net2000 is going to give you a CSU/DSU, which is the T1 equivalent
> for a modem.  You then use the Cisco to go from the HDLC and V.35 into
> Ethernet.  There are a few Cisco boxes out there that combine the CSU/DSU
> with the router in a small package.  It's more expensive, but easier to work
> with.
>
> Not having used either V.35 or HDLC on a Linux box (but having used them
> on Solaris) I'd recommend the Cisco, if only for saving the setup headaches.
>
> -Mark
>
> Glenn Burkhardt wrote:
>
> > Can I have some help with nomenclature?  I'm looking into getting a T1 line
> > into the office to replace our local telephone lines and dialup ISP connection.
> > The T1 line Internet connection is "V.35", which looks to be a high speed
> > HDLC serial connection (??).
> >
> > We currently have a single dial up line with a static IP address assignment
> > on a Linux box that performs IP masquerading for all the other computers
> > in the office, and works as a mail server.
> >
> > The guy at Net2000 said that I needed a Cisco 1720 router for the
> > Internet connection.  But isn't a router just a Unix box with a communications
> > interface that's connected to the Internet?  So isn't my existing firewall
> > a "router", even though it uses PPP demand dialing to connect?
> >
> > It looks like I can get a $650 Riscom/N2 board from SBS or their distributor
> > Image Stream solutions, use the stock driver n2.c that comes with Linux
> > distributions, and substitute it for the PPP dialup interface, leaving
> > the rest alone (with a different static IP address from Net2000).
> >
> > Is it really this simple?  What have I missed?
> >
> > Thanks.
> >
> > -
> > Subcription/unsubscription/info requests: send e-mail with
> > "subscribe", "unsubscribe", or "info" on the first line of the
> > message body to discuss-request at blu.org (Subject line is ignored).
>
>
> --
> Mark Komarinski - Senior Systems Engineer - VA Linux Systems
> (cell)  978-697-2228
> (email) mkomarinski at valinux.com
> "Have one day pleasant" - Babelfish
>
> -
> Subcription/unsubscription/info requests: send e-mail with
> "subscribe", "unsubscribe", or "info" on the first line of the
> message body to discuss-request at blu.org (Subject line is ignored).
>

-
Subcription/unsubscription/info requests: send e-mail with
"subscribe", "unsubscribe", or "info" on the first line of the
message body to discuss-request at blu.org (Subject line is ignored).