Wireless repeater

Hello,

I have a short question. I am using router pentagram cerberus:
WAN: ADSL RJ-11
LAN: 4X ethernet RJ-45
Wireless Access point

I changed ISP and now I have internet connection via ethernet. I am
wondering if i am able to use my router. I am wondering if it is
possible to connect ISP ethernet to LAN RJ-45, and set up router AP as
simple reapeter. I want to have wireless connection, i don't need to
connect more PC's.
Please help me if it possible, or i should bay new router with
ethernet WAN port.

--
Best regards,

Jacek Ptaszyñski <(E-Mail Removed)> wrote in
news:a3c88a04-4649-4b76-b6c7-(E-Mail Removed)
m:

> Hello,
>
> I have a short question. I am using router pentagram cerberus:
> WAN: ADSL RJ-11
> LAN: 4X ethernet RJ-45
> Wireless Access point
>
> I changed ISP and now I have internet connection via ethernet. I
> am wondering if i am able to use my router. I am wondering if it
> is possible to connect ISP ethernet to LAN RJ-45, and set up
> router AP as simple reapeter. I want to have wireless connection,
> i don't need to connect more PC's.
> Please help me if it possible, or i should bay new router with
> ethernet WAN port.

In case you do, you *must* disable your routers DHCP server.
Otherwise your setup will screw up the ISPs whole network.

Your wireless router, connected to the internet by a LAN ethernet
port, will function as an AP - not a repeater - but you *must*
disable the DHCP server!

The other LAN ethernet ports will function as a switch. So you will
also be able to connect your PC by cable, and if your account comes
with more than one public ip-address, you will be able connect up to
3 PCs by cable, and as many as the wireless can handle, to the
internet, up the number of public ip-addresses provided for you by
the ISP.

HTH


--
2GB RAM should be enough for anyone.

In article <Xns9B0CB4471290Ehlexahotmailcom@130.133.1.4>,
Axel Hammerschmidt <(E-Mail Removed)> wrote:

> In case you do, you *must* disable your routers DHCP server.
> Otherwise your setup will screw up the ISPs whole network.

?
--
W. Oates

Warren Oates <(E-Mail Removed)> wrote:

> In article <Xns9B0CB4471290Ehlexahotmailcom@130.133.1.4>,
> Axel Hammerschmidt <(E-Mail Removed)> wrote:
>
> > In case you do, you *must* disable your routers DHCP server.
> > Otherwise your setup will screw up the ISPs whole network.
>
> ?

You've never used a router as an access point, I gather.

Robert Blass <(E-Mail Removed)> wrote:

>Those are likely cheap, less than $100, but never heard of a repeater
>for a router unless you need a signal for more than say 500-1,000 feet
>or more.

They work quite well, as long as you understand you are trading bandwidth for
range. Unlike repeaters which retrans on a different frequency, wifi repeaters
use the same frequency. So, if you wifi net is 25% saturated, you will be 50%
saturated with a repeater.

On Mon, 1 Sep 2008 18:48:44 +0200, (E-Mail Removed) (Axel
Hammerschmidt) wrote:

>Warren Oates <(E-Mail Removed)> wrote:
>
>> In article <Xns9B0CB4471290Ehlexahotmailcom@130.133.1.4>,
>> Axel Hammerschmidt <(E-Mail Removed)> wrote:
>>
>> > In case you do, you *must* disable your routers DHCP server.
>> > Otherwise your setup will screw up the ISPs whole network.
>>
>> ?
>
>You've never used a router as an access point, I gather.

I can't believe there's an ISP on the planet that would allow that to
happen. (Referring to the "disable your DHCP server or you'll screw up
the ISPs whole network" comment.)

Robert Blass <(E-Mail Removed)> wrote:

>>They work quite well, as long as you understand you are trading bandwidth for
>>range. Unlike repeaters which retrans on a different frequency, wifi repeaters
>>use the same frequency. So, if you wifi net is 25% saturated, you will be 50%
>>saturated with a repeater.
>
>That sounds like fail city.

Why? As I said, they work very well as long as you know how they work and what
your network utilization is. I used one in a rural campus environment (actually
a ranch), where it wasn't possible to do a direct line of sight between two
buildings about 2000' apart.

There was a third building that both buildings could see, roughly in the middle
(think triangle). We put a repeater there and everything worked fine.

Jacek Ptaszynski wrote:
> I changed ISP and now I have internet connection via ethernet. I am
> wondering if i am able to use my router. I am wondering if it is
> possible to connect ISP ethernet to LAN RJ-45, and set up router AP as
> simple reapeter. I want to have wireless connection, i don't need to
> connect more PC's.
> Please help me if it possible, or i should bay new router with
> ethernet WAN port.

As I understand it, you have a new DSL internet connection and
want to connect a computer to it via wireless.

Very simply done. A standard Linksys WRT54G for under $60
available almost anywhere will work. The built in discovery
process will make it very easy. Simply connect the DSL modem's
ethernet jack to the Linksys' WAN jack. The wireless connection will
be functionally identical to the four LAN ports.

Axel's response about turning off the DHCP server is incorrect.
Granted if you were to connect one of the four DHCP'ed LAN ports of
a hub or switch directly to the DSL modem, it will create some
problems for you (it would not create a problem on the DSL network
as the DSLAM ports are on a switch to protect their network from such
problems).

Notice he said "you must disable your routers DHCP server". That means
he's talking about a router, which be definition would have a WAN port
connected to the ISP's network and at least one LAN port, which can most
certainly be driven by a DHCP server.

He did bring up the point about an ISP selling you multiple IP addresses
as a profit avenue, but that was over ten years ago, before consumers
discovered they could use a router to connect multiple computers to
their DSL (or cable modem) service.

Robert Blass added brought up repeaters. Generally speaking, we can
define that four ways.
1) A two way radio system repeater receives a signal on one frequency
and transmits it back out on a different frequency in real time.
2) A consumer grade wireless device that receives a chunk of data and
stores it, then turns off the receiver and turns on the transmitter and
transmits it on the same frequency. Store and forward repeaters cut your
overall speed in half.
3) A commercial grade wireless device that uses both a transmitter and
separate receiver for full duplex operation without halving your
connection speed.
4) A generalized non-specific description that technically uninformed
people use to describe transmitting, connecting, sending, etc. any sort
of signal.

Robert Neville described a consumer grade store-and-forward wireless
repeater that operate on e single frequency. Commercial grade wireless
repeaters use two frequencies.

On ma, 01 sep 2008 23:43:27 GMT, Char Jackson <(E-Mail Removed)> wrote
in alt.internet.wireless:

> On Mon, 1 Sep 2008 18:48:44 +0200, (E-Mail Removed) (Axel
> Hammerschmidt) wrote:
>
>>Warren Oates <(E-Mail Removed)> wrote:
>>
>>> In article <Xns9B0CB4471290Ehlexahotmailcom@130.133.1.4>,
>>> Axel Hammerschmidt <(E-Mail Removed)> wrote:
>>>
>>> > In case you do, you *must* disable your routers DHCP server.
>>> > Otherwise your setup will screw up the ISPs whole network.
>>>
>>> ?
>>
>> You've never used a router as an access point, I gather.
>
> I can't believe there's an ISP on the planet that would allow that to
> happen. (Referring to the "disable your DHCP server or you'll screw up
> the ISPs whole network" comment.)

No, the ISP will cut the connection. And that's why:"disable your DHCP
server or you'll screw up the ISPs whole network"


--
Paris Hilton Gives Birth To Twins...Aliens

On ti, 02 sep 2008 03:48:38 GMT, DTC <(E-Mail Removed)> wrote in
alt.internet.wireless:

<snip>

> Axel's response about turning off the DHCP server is incorrect.
> Granted if you were to connect one of the four DHCP'ed LAN ports of
> a hub or switch directly to the DSL modem, it will create some
> problems for you (it would not create a problem on the DSL network
> as the DSLAM ports are on a switch to protect their network from such
> problems).

We know nothing about the ISP's network, except that it (now!) connect
via ethernet.

A wireless router, that functions as an AP does not need a DHCP server.

So turn off the router's DHCP server!

<snip>

> Notice he said "you must disable your routers DHCP server". That means
> he's talking about a router, which be definition would have a WAN port
> connected to the ISP's network and at least one LAN port, which can
> most certainly be driven by a DHCP server.

His present wireless router has a RJ11 WAN port - you obviously didn't
read the post. The OP wants to use it as an AP. The repeater bit is
probably a misunderstanding.

<snip>

> 4) A generalized non-specific description that technically uninformed
> people use to describe transmitting, connecting, sending, etc. any
> sort of signal.

Bravo!


--
Paris Hilton Gives Birth To Twins...Aliens