network printer problem

Hello,

I posted this problem on another group but I found that this group
might be the best place it shoudld be. I am thinking of solving this
problem, the lab in the group has several windows xp computers, they
have public ip. Now we have 2 printers connected to the internet, both
of them have public Ip. The computers and the printers are not
connected by routers.

Now the problem is, I need to spare a internet port for other use, so
I am thinking of using a router to connect the 2 printers and let the
routher have a public ip, the 2 printers will have private ip
assigned by the router. I want to know in this situation, is it
possible for other computers to access the two printers because they
now do not have public ip, they are in a subnet behind the router.

The printers are in a room, both of them are using a net port. We are
in a different room, and each computer connects to the internet via a
net port.

Thanks!

ZHengquan

On Mon, 18 Feb 2008 14:24:41 -0800 (PST), zhengquan <zhang.zhengquan@gmail.com>
wrote:

>Hello,
>
>I posted this problem on another group but I found that this group
>might be the best place it shoudld be. I am thinking of solving this
>problem, the lab in the group has several windows xp computers, they
>have public ip. Now we have 2 printers connected to the internet, both
>of them have public Ip. The computers and the printers are not
>connected by routers.
>
>Now the problem is, I need to spare a internet port for other use, so
>I am thinking of using a router to connect the 2 printers and let the
>routher have a public ip, the 2 printers will have private ip
>assigned by the router. I want to know in this situation, is it
>possible for other computers to access the two printers because they
>now do not have public ip, they are in a subnet behind the router.
>
>The printers are in a room, both of them are using a net port. We are
>in a different room, and each computer connects to the internet via a
>net port.
>
>Thanks!
>
>ZHengquan

I would put all of the computers and printers behind a router (NAT router, I
hope). Why do you feel the need to expose the computers to the Internet?
<http://nitecruzr.blogspot.com/2005/05/what-is-nat-router.html>
http://nitecruzr.blogspot.com/2005/0...at-router.html

--
Cheers,
Chuck, MS-MVP 2005-2007 [Windows - Networking]
http://nitecruzr.blogspot.com/
Paranoia is not a problem, when it's a normal response from experience.
My email is AT DOT
actual address pchuck mvps org.

On Feb 18, 10:51 pm, "Chuck [MVP]" <n...@example.net> wrote:
> On Mon, 18 Feb 2008 14:24:41 -0800 (PST), zhengquan <zhang.zhengq...@gmail.com>
> wrote:
>
>
>
> >Hello,
>
> >I posted this problem on another group but I found that this group
> >might be the best place it shoudld be. I am thinking of solving this
> >problem, the lab in the group has several windows xp computers, they
> >have public ip. Now we have 2 printers connected to the internet, both
> >of them have public Ip. The computers and the printers are not
> >connected by routers.
>
> >Now the problem is, I need to spare a internet port for other use, so
> >I am thinking of using a router to connect the 2 printers and let the
> >routher have a public ip, the 2 printers will have private ip
> >assigned by the router. I want to know in this situation, is it
> >possible for other computers to access the two printers because they
> >now do not have public ip, they are in a subnet behind the router.
>
> >The printers are in a room, both of them are using a net port. We are
> >in a different room, and each computer connects to the internet via a
> >net port.
>
> >Thanks!
>
> >ZHengquan
>
> I would put all of the computers and printers behind a router (NAT router, I
> hope). Why do you feel the need to expose the computers to the Internet?
> <http://nitecruzr.blogspot.com/2005/05/what-is-nat-router.html>http://nitecruzr.blogspot.com/2005/0...at-router.html
>
> --
> Cheers,
> Chuck, MS-MVP 2005-2007 [Windows - Networking]http://nitecruzr.blogspot.com/
> Paranoia is not a problem, when it's a normal response from experience.
> My email is AT DOT
> actual address pchuck mvps org.

Thanks, Because computers are in a room, the printers in another, and
if the computers are behind a router, they do not have public ip
address and it make remote log in difficult...

Zhengquan

"zhengquan" <zhang.zhengquan@gmail.com> wrote in message
news:32f0645a-efa8-464a-b3ae-c291631c3df0@d21g2000prf.googlegroups.com...

> Thanks, Because computers are in a room, the printers in another, and
> if the computers are behind a router, they do not have public ip
> address and it make remote log in difficult...
>
> Zhengquan

I have my laptop in one room and my printer in another. that doesn't mean I
have to use a public IP to print to it. You need a print server for each
printer and then connect each print server into your local network.

"zhengquan" <zhang.zhengquan@gmail.com> wrote in message
news:32f0645a-efa8-464a-b3ae-c291631c3df0@d21g2000prf.googlegroups.com...
>
> Thanks, Because computers are in a room, the printers in another, and
> if the computers are behind a router, they do not have public ip
> address and it make remote log in difficult...
>

Then just add them to your local network.......I have a machine in one room
and the printer in another, but I don't need to print over the
"internet"....

On Feb 25, 3:07*am, "Gordon" <gbpli...@gmail.com.invalid> wrote:
> "zhengquan" <zhang.zhengq...@gmail.com> wrote in message
>
> news:32f0645a-efa8-464a-b3ae-c291631c3df0@d21g2000prf.googlegroups.com...
>
>
>
> > Thanks, Because computers are in a room, the printers in another, and
> > if the computers are behind a router, they do not have public ip
> > address and it make remote log in difficult...
>
> Then just add them to your local network.......I have a machine in one room
> and the printer in another, but I don't need to print over the
> "internet"....

You could pass a cable between the two rooms. And when you connect
the two printers onto the same network, you will then secure them so
than only the PCs in the areas can access the printers. By having the
printers available over hte Internet, you have 'exposed" these
networks to possible hacking.

"smlunatick" <yveslec@gmail.com> wrote in message
news:eeac89b7-5ced-4c04-a176-f331c035486a@p73g2000hsd.googlegroups.com...
On Feb 25, 3:07 am, "Gordon" <gbpli...@gmail.com.invalid> wrote:
> "zhengquan" <zhang.zhengq...@gmail.com> wrote in message
>
> news:32f0645a-efa8-464a-b3ae-c291631c3df0@d21g2000prf.googlegroups.com...
>
>
>
> > Thanks, Because computers are in a room, the printers in another, and
> > if the computers are behind a router, they do not have public ip
> > address and it make remote log in difficult...
>
> Then just add them to your local network.......I have a machine in one
> room
> and the printer in another, but I don't need to print over the
> "internet"....

You could pass a cable between the two rooms.

Even better, use wireless.....that's what I have. Printer hardwired via a
pocket Print server (just sits on the parallel port on the printer) to a
switch, to which is connected a WAP. The machine in the other room was
Wireless.....

On Feb 25, 10:42*am, "Gordon" <gbpli...@gmail.com.invalid> wrote:
> "smlunatick" <yves...@gmail.com> wrote in message
>
> news:eeac89b7-5ced-4c04-a176-f331c035486a@p73g2000hsd.googlegroups.com...
> On Feb 25, 3:07 am, "Gordon" <gbpli...@gmail.com.invalid> wrote:
>
> > "zhengquan" <zhang.zhengq...@gmail.com> wrote in message
>
> >news:32f0645a-efa8-464a-b3ae-c291631c3df0@d21g2000prf.googlegroups.com...
>
> > > Thanks, Because computers are in a room, the printers in another, and
> > > if the computers are behind a router, they do not have public ip
> > > address and it make remote log in difficult...
>
> > Then just add them to your local network.......I have a machine in one
> > room
> > and the printer in another, but I don't need to print over the
> > "internet"....
>
> You could pass a cable between the two rooms.
>
> Even better, use wireless.....that's what I have. Printer hardwired via a
> pocket Print server (just sits on the parallel port on the printer) to a
> switch, to which is connected a WAP. The machine in the other room was
> Wireless.....

Wireless network is fine but I still think that using this for
printing is not reliable. Printing is a "heavy" workload for the
network and no wireless connection can really be as fast as a cable
between the printer and networks.

Chuck [MVP] wrote:
> On Tue, 26 Feb 2008 08:45:16 -0800 (PST), smlunatick <yveslec@gmail.com> wrote:
>
>> On Feb 25, 10:42 am, "Gordon" <gbpli...@gmail.com.invalid> wrote:
>>> "smlunatick" <yves...@gmail.com> wrote in message
>>>
>>> news:eeac89b7-5ced-4c04-a176-f331c035486a@p73g2000hsd.googlegroups.com...
>>> On Feb 25, 3:07 am, "Gordon" <gbpli...@gmail.com.invalid> wrote:
>>>
>>>> "zhengquan" <zhang.zhengq...@gmail.com> wrote in message
>>>> news:32f0645a-efa8-464a-b3ae-c291631c3df0@d21g2000prf.googlegroups.com...
>>>>> Thanks, Because computers are in a room, the printers in another, and
>>>>> if the computers are behind a router, they do not have public ip
>>>>> address and it make remote log in difficult...
>>>> Then just add them to your local network.......I have a machine in one
>>>> room
>>>> and the printer in another, but I don't need to print over the
>>>> "internet"....
>>> You could pass a cable between the two rooms.
>>>
>>> Even better, use wireless.....that's what I have. Printer hardwired via a
>>> pocket Print server (just sits on the parallel port on the printer) to a
>>> switch, to which is connected a WAP. The machine in the other room was
>>> Wireless.....
>> Wireless network is fine but I still think that using this for
>> printing is not reliable. Printing is a "heavy" workload for the
>> network and no wireless connection can really be as fast as a cable
>> between the printer and networks.
>
> The speed isn't the problem. The half duplex nature of WiFi, and having the
> WiFi router having to constantly choose between receiving from the source, and
> sending to the target, in half duplex mode, is a big problem. Linksys at one
> time had a nice white paper explaining this very concisely.
>

never had any problems here - mind you, I don't have large print jobs
(normally....)

On Tue, 26 Feb 2008 08:45:16 -0800 (PST), smlunatick <yveslec@gmail.com> wrote:

>On Feb 25, 10:42*am, "Gordon" <gbpli...@gmail.com.invalid> wrote:
>> "smlunatick" <yves...@gmail.com> wrote in message
>>
>> news:eeac89b7-5ced-4c04-a176-f331c035486a@p73g2000hsd.googlegroups.com...
>> On Feb 25, 3:07 am, "Gordon" <gbpli...@gmail.com.invalid> wrote:
>>
>> > "zhengquan" <zhang.zhengq...@gmail.com> wrote in message
>>
>> >news:32f0645a-efa8-464a-b3ae-c291631c3df0@d21g2000prf.googlegroups.com...
>>
>> > > Thanks, Because computers are in a room, the printers in another, and
>> > > if the computers are behind a router, they do not have public ip
>> > > address and it make remote log in difficult...
>>
>> > Then just add them to your local network.......I have a machine in one
>> > room
>> > and the printer in another, but I don't need to print over the
>> > "internet"....
>>
>> You could pass a cable between the two rooms.
>>
>> Even better, use wireless.....that's what I have. Printer hardwired via a
>> pocket Print server (just sits on the parallel port on the printer) to a
>> switch, to which is connected a WAP. The machine in the other room was
>> Wireless.....
>
>Wireless network is fine but I still think that using this for
>printing is not reliable. Printing is a "heavy" workload for the
>network and no wireless connection can really be as fast as a cable
>between the printer and networks.

The speed isn't the problem. The half duplex nature of WiFi, and having the
WiFi router having to constantly choose between receiving from the source, and
sending to the target, in half duplex mode, is a big problem. Linksys at one
time had a nice white paper explaining this very concisely.

--
Cheers,
Chuck, MS-MVP 2005-2007 [Windows - Networking]
http://nitecruzr.blogspot.com/
Paranoia is not a problem, when it's a normal response from experience.
My email is AT DOT
actual address pchuck mvps org.