Miscelleneous questions on routing.

In the context of Windows 2000 Routing and Remote Access:

(1) What are the differences between a demand-dial route and a normal
dial-up connection? In each case, setting up requires: device to use (e.g.
modem), parameters (e.g. telephone number), user name and password,
networking services and protocols, and authentication method (EAP, PAP etc).
It seems that there are no differences.

(2) For LAN connections, one can specify to obtain IP address
"automatically", which of course means "DHCP". For dial-up connection, it is
also possible, but does it still mean DHCP ? If it is still DHCP, then it
would be very remarkable - for example, in the context of 56K connection, we
are talking about a dial-up client broadcasting DHCPDISCOVER packet through
POTS, which I don't feel OK.

Just two simple questions.

David

"David" <(E-Mail Removed)> wrote in message
news:04F51C15-E118-474D-B437-(E-Mail Removed)...
> In the context of Windows 2000 Routing and Remote Access:
>
> (1) What are the differences between a demand-dial route and a normal
> dial-up connection?

I believe one receives calls and the other only dials outbound.

>
> (2) For LAN connections, one can specify to obtain IP address
> "automatically", which of course means "DHCP". For dial-up connection, it
is
> also possible, but does it still mean DHCP ? If it is still DHCP, then it
> would be very remarkable - for example, in the context of 56K connection,
we
> are talking about a dial-up client broadcasting DHCPDISCOVER packet
through
> POTS, which I don't feel OK.

No the RRAS Service "aquires" a group of IP#s in advance from the DHCP
Server. The RRAS Server then assigns the IP#s to the connection when the
connection is made.

There is no such thing as "broadcasting" over a POTS line as you would think
of it on a LAN. POTS is a point-to-point link with a single endpoint at
each end, there is only one place it can possibly go,...so whether is used a
broadcast address or a specific address is pretty much meaningless. That is
why a dialup uses the Point-to-Point Protocol (PPP),...that is what it is
all about.

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

Note that some clients (including W2k/XP) can send DHCPINFORM messages
after connection to actually get info from DHCP, rather than using the info
which came across during the PPP/PPTP negotiation. I haven't used it, but I
know that it can be done.

"Phillip Windell" <@.> wrote in message
news:O$(E-Mail Removed)...
>
> "David" <(E-Mail Removed)> wrote in message
> news:04F51C15-E118-474D-B437-(E-Mail Removed)...
>> In the context of Windows 2000 Routing and Remote Access:
>>
>> (1) What are the differences between a demand-dial route and a normal
>> dial-up connection?
>
> I believe one receives calls and the other only dials outbound.
>
>>
>> (2) For LAN connections, one can specify to obtain IP address
>> "automatically", which of course means "DHCP". For dial-up connection, it
> is
>> also possible, but does it still mean DHCP ? If it is still DHCP, then it
>> would be very remarkable - for example, in the context of 56K connection,
> we
>> are talking about a dial-up client broadcasting DHCPDISCOVER packet
> through
>> POTS, which I don't feel OK.
>
> No the RRAS Service "aquires" a group of IP#s in advance from the DHCP
> Server. The RRAS Server then assigns the IP#s to the connection when the
> connection is made.
>
> There is no such thing as "broadcasting" over a POTS line as you would
> think
> of it on a LAN. POTS is a point-to-point link with a single endpoint at
> each end, there is only one place it can possibly go,...so whether is used
> a
> broadcast address or a specific address is pretty much meaningless. That
> is
> why a dialup uses the Point-to-Point Protocol (PPP),...that is what it is
> all about.
>
> --
>
> Phillip Windell [MCP, MVP, CCNA]
> www.wandtv.com
>
>
>

Ok.... :-)

--

Phillip Windell [MCP, MVP, CCNA]
www.wandtv.com

"Bill Grant" <not.available@online> wrote in message
news:(E-Mail Removed)...
> Note that some clients (including W2k/XP) can send DHCPINFORM messages
> after connection to actually get info from DHCP, rather than using the
info
> which came across during the PPP/PPTP negotiation. I haven't used it, but
I
> know that it can be done.
>
> "Phillip Windell" <@.> wrote in message
> news:O$(E-Mail Removed)...
> >
> > "David" <(E-Mail Removed)> wrote in message
> > news:04F51C15-E118-474D-B437-(E-Mail Removed)...
> >> In the context of Windows 2000 Routing and Remote Access:
> >>
> >> (1) What are the differences between a demand-dial route and a normal
> >> dial-up connection?
> >
> > I believe one receives calls and the other only dials outbound.
> >
> >>
> >> (2) For LAN connections, one can specify to obtain IP address
> >> "automatically", which of course means "DHCP". For dial-up connection,
it
> > is
> >> also possible, but does it still mean DHCP ? If it is still DHCP, then
it
> >> would be very remarkable - for example, in the context of 56K
connection,
> > we
> >> are talking about a dial-up client broadcasting DHCPDISCOVER packet
> > through
> >> POTS, which I don't feel OK.
> >
> > No the RRAS Service "aquires" a group of IP#s in advance from the DHCP
> > Server. The RRAS Server then assigns the IP#s to the connection when the
> > connection is made.
> >
> > There is no such thing as "broadcasting" over a POTS line as you would
> > think
> > of it on a LAN. POTS is a point-to-point link with a single endpoint at
> > each end, there is only one place it can possibly go,...so whether is
used
> > a
> > broadcast address or a specific address is pretty much meaningless.
That
> > is
> > why a dialup uses the Point-to-Point Protocol (PPP),...that is what it
is
> > all about.
> >
> > --
> >
> > Phillip Windell [MCP, MVP, CCNA]
> > www.wandtv.com
> >
> >
> >
>
>