Pegasus \(MVP\)

"Peter" <Peter@discussions.microsoft.com> wrote in message
news:u4supUO2HHA.4880@TK2MSFTNGP03.phx.gbl...
>I just get a 1 port ADSL modem router from the ISP. From the
>specification, it says that I can use it for Internet sharing.
>
> However, as there is only 1 port (1 port for connecting ADSL signal and 1
> port for Ethernet), I would like to know why they say that modem is a
> router ? From my basic understanding, a router should connect more than 1
> machine.
>
> Thanks

An ADSL modem is a device that can process an ADSL-type
signal delivered on the phone line. It assigns an IP address to
your PC that is determined by your ISP. PCs connected to the
Internet via an ADSL modem are vulnerable to hacker attacks.

An ADSL modem/router is an ADSL modem plus a router.
The router acts as an interface between your internal network
and the Internet. It is like a barrier: Your internal IP address
(e.g. 192.168.0.10) is not visible to the outside world. It can
therefore be used by several PCs connected to the internal
network. It's much harder to hack through a router than it is
to hack through a modem.

Most ADSL modem/routers have several output ports but
they don't have to. If yours has only a single port then you need
to buy a switch so that you can connect other PCs too. Switches
are very cheap these days.

Peter

I just get a 1 port ADSL modem router from the ISP. From the specification,
it says that I can use it for Internet sharing.

However, as there is only 1 port (1 port for connecting ADSL signal and 1
port for Ethernet), I would like to know why they say that modem is a router
? From my basic understanding, a router should connect more than 1 machine.

Thanks

Pegasus \(MVP\)

"Peter" <Peter@discussions.microsoft.com> wrote in message
news:u4supUO2HHA.4880@TK2MSFTNGP03.phx.gbl...
>I just get a 1 port ADSL modem router from the ISP. From the
>specification, it says that I can use it for Internet sharing.
>
> However, as there is only 1 port (1 port for connecting ADSL signal and 1
> port for Ethernet), I would like to know why they say that modem is a
> router ? From my basic understanding, a router should connect more than 1
> machine.
>
> Thanks

P.S. Have a look at your clock. You're posting in the future.

Tim Slattery

"Peter" <Peter@discussions.microsoft.com> wrote:

>I just get a 1 port ADSL modem router from the ISP. From the specification,
>it says that I can use it for Internet sharing.
>
>However, as there is only 1 port (1 port for connecting ADSL signal and 1
>port for Ethernet), I would like to know why they say that modem is a router
>? From my basic understanding, a router should connect more than 1 machine.

It sounds like you have an ADSL modem that is not a router. My
understanding of the language in the specification is that they are
saying that you can use it with a router, which you can. Home routers
are widely and cheaply available, and many have wireless capabilities
too.

When you get a router, you'll connect it to your ADSL modem with a
single ethernet cable. Be careful to get that cable into the proper
port on the router! The router will have multiple (probably four)
other ethernet connections that you use to connect your computers to
it.

--
Tim Slattery
MS MVP(DTS)
Slattery_T@bls.gov
http://members.cox.net/slatteryt

Pegasus \(MVP\)

"Tim Slattery" <Slattery_T@bls.gov> wrote in message
news:gjqgb3hp378efufu81l5cj7iubnni5bnbl@4ax.com...
> "Peter" <Peter@discussions.microsoft.com> wrote:
>
>>I just get a 1 port ADSL modem router from the ISP. From the
>>specification,
>>it says that I can use it for Internet sharing.
>>
>>However, as there is only 1 port (1 port for connecting ADSL signal and 1
>>port for Ethernet), I would like to know why they say that modem is a
>>router
>>? From my basic understanding, a router should connect more than 1
>>machine.
>
> It sounds like you have an ADSL modem that is not a router.

Not necessarily. I have seen several ADSL modem/routers
with just a single port.

HeyBub

Peter wrote:
> I just get a 1 port ADSL modem router from the ISP. From the
> specification, it says that I can use it for Internet sharing.
>
> However, as there is only 1 port (1 port for connecting ADSL signal
> and 1 port for Ethernet), I would like to know why they say that
> modem is a router ? From my basic understanding, a router should
> connect more than 1 machine.

Use an external "router" or, better, a "switch" (a "switch" in this context
is a super router).

Here's a cheap, simple example (we're talking $15.00):

http://search.ebay.com/search/search...e=search&fgtp=

This is for a Linksys BEFSR41 switch.

Not only does this device make the process painless, but it adds a hardware
security layer, preventing outside intrusion via your internet connection.

Pegasus \(MVP\)

"HeyBub" <heybub@gmail.com> wrote in message
news:eBlzNfQ2HHA.4476@TK2MSFTNGP06.phx.gbl...
> Peter wrote:
>> I just get a 1 port ADSL modem router from the ISP. From the
>> specification, it says that I can use it for Internet sharing.
>>
>> However, as there is only 1 port (1 port for connecting ADSL signal
>> and 1 port for Ethernet), I would like to know why they say that
>> modem is a router ? From my basic understanding, a router should
>> connect more than 1 machine.
>
> Use an external "router" or, better, a "switch" (a "switch" in this
> context is a super router).

No, a switch is not a router. Routers will perform some IP address
translation but switches won't: What comes in goes out.

Tim Slattery

"Pegasus \(MVP\)" <I.can@fly.com> wrote:


>> It sounds like you have an ADSL modem that is not a router.

>Not necessarily. I have seen several ADSL modem/routers
>with just a single port.

Sounds strange to me. As OP said, a router allows multiple computers
to connect to it and switches packets among them. This thing has only
one ethernet connection, so you can connect only one computer to it.
What kind of router is that?

--
Tim Slattery
MS MVP(DTS)
Slattery_T@bls.gov
http://members.cox.net/slatteryt

Gary S. Terhune

If such an animal exists, it's a cheap one that requires an added network
switch to distribute to more than one device. A router does a lot more than
just switch packets to the destination. What we normally think of as a
router is a router with a built-in switch.

--
Gary S. Terhune
MS-MVP Shell/User
www.grystmill.com

"Tim Slattery" <Slattery_T@bls.gov> wrote in message
news:8r6hb31ur8n4rnm9kc8la9pb1o03qb88kf@4ax.com...
> "Pegasus \(MVP\)" <I.can@fly.com> wrote:
>
>
>>> It sounds like you have an ADSL modem that is not a router.
>
>>Not necessarily. I have seen several ADSL modem/routers
>>with just a single port.
>
> Sounds strange to me. As OP said, a router allows multiple computers
> to connect to it and switches packets among them. This thing has only
> one ethernet connection, so you can connect only one computer to it.
> What kind of router is that?
>
> --
> Tim Slattery
> MS MVP(DTS)
> Slattery_T@bls.gov
> http://members.cox.net/slatteryt

Pegasus \(MVP\)

"Tim Slattery" <Slattery_T@bls.gov> wrote in message
news:8r6hb31ur8n4rnm9kc8la9pb1o03qb88kf@4ax.com...
> "Pegasus \(MVP\)" <I.can@fly.com> wrote:
>
>
>>> It sounds like you have an ADSL modem that is not a router.
>
>>Not necessarily. I have seen several ADSL modem/routers
>>with just a single port.
>
> Sounds strange to me. As OP said, a router allows multiple computers
> to connect to it and switches packets among them. This thing has only
> one ethernet connection, so you can connect only one computer to it.
> What kind of router is that?
>
> --
> Tim Slattery
> MS MVP(DTS)
> Slattery_T@bls.gov
> http://members.cox.net/slatteryt

A 4-port ADSL router is really three devices in one box:
- An ADSL modem
- A router
- A four-port switch

Some manufacturers offer them without the switch, perhaps
to price them more attractively.