Fixed IP Address And Home Network

As I understand it - if I go to an ISP like ZEN and get fixed IP addresses
it is set up as follows. One fixed IP address for the router and one each
for the PCs on the network. What happens to a Wireless access point and a
Wireless station? Also how do you set up a PC you don't want to have a fixed
IP address but only appear on the internal network?

On Mon, 22 Sep 2003 08:31:53 +0100, Kimball K Kinnisonnospam wrote:

> As I understand it - if I go to an ISP like ZEN and get fixed IP addresses
> it is set up as follows. One fixed IP address for the router and one each
> for the PCs on the network. What happens to a Wireless access point and a
> Wireless station? Also how do you set up a PC you don't want to have a fixed
> IP address but only appear on the internal network?

Hi

No, that;s not quite correct. If you get one fixed IP then the public IP
address assigned by your ISP is allocated to the device attached to your
connection. If it's a single PC then it gets the IP address, if it's a
router then it gets the public IP address and any devices attached to it
are given a private IP address such as 192.168.0.x (depending on the
router).

If you have a router in your scenario then you would forward ports (for any
applications that need them) through it to the IP address of the PC that
runs the application.

A better description of your proposed setup and what you're trying to
achieve may be more helpful.

Regards

Bill

"phoenix" <(E-Mail Removed)> wrote in message
news:190fpuynvm0iv.14e07vsdr5s0n$.(E-Mail Removed).. .
> On Mon, 22 Sep 2003 08:31:53 +0100, Kimball K Kinnisonnospam wrote:
>
> > As I understand it - if I go to an ISP like ZEN and get fixed IP
addresses
> > it is set up as follows. One fixed IP address for the router and one
each
> > for the PCs on the network. What happens to a Wireless access point and
a
> > Wireless station? Also how do you set up a PC you don't want to have a
fixed
> > IP address but only appear on the internal network?
>
> Hi
>
> No, that;s not quite correct. If you get one fixed IP then the public IP
> address assigned by your ISP is allocated to the device attached to your
> connection. If it's a single PC then it gets the IP address, if it's a
> router then it gets the public IP address and any devices attached to it
> are given a private IP address such as 192.168.0.x (depending on the
> router).
>
> If you have a router in your scenario then you would forward ports (for
any
> applications that need them) through it to the IP address of the PC that
> runs the application.
>
> A better description of your proposed setup and what you're trying to
> achieve may be more helpful.
>
> Regards
>
> Bill

Hi - I was thinking of going with ZEN who I believe give you more than one
static address. The system I propose will have a router/modem with an
inbuilt wireless access point. All of the PCs would be allocated a fixed IP
address and thus be directly connected to the internet. I would not want
this for my sons PC and would him to have a private address. As well I have
a laptop connected by its own inbuilt wireless point and another laptop
connected via a wireless station. This wireless station needs its own IP
address as well as the PC it is connected to. I also have a iPaq with its
own wireless link.

You use the "private" range of IP addresses (starting at 192.168.0.0) for
the network equipment on your side of the router.
The easiest way to do it it to use DHCP and have the IP adresses allocated
by your server (the router does this) when they log on to the system.
The dynamic or static IP allocated by your ISP is only for the router /
modem you connect to them with, what you do with the rest of the network is
down to you to sort out. (unless you have purchased mutiple blocks of IP
addresses - that is a different matter)

Regarding dynamic or static IP addresses, it makes very little difference to
most users unless you are running some form of a server which style you use.
In a lot of cases dynamic is better from a security point of view. If
someone hacks in to your PC (unlikely but possible) and you have a fixed IP
they know where to look every time you log on - with a dynamic IP you move
around and are harder to find.
I had ADSL on a "dynamic IP" for 8 months last year (with Pipex) until I
moved house and the IP address never changed, dynamic IP means that they can
change the IP it does not mean they will change it.
Unless you have a specific user need for a fixed IP, I would not factor it
into any decision you make on which ISP to use.




"Kimball K Kinnison" <nospam@(nospam)yahoo.com> wrote in message
news:bkm8h0$38gkf$(E-Mail Removed)...
> As I understand it - if I go to an ISP like ZEN and get fixed IP addresses
> it is set up as follows. One fixed IP address for the router and one each
> for the PCs on the network. What happens to a Wireless access point and a
> Wireless station? Also how do you set up a PC you don't want to have a
fixed
> IP address but only appear on the internal network?
>
>

"Kimball K Kinnison" <nospam@(nospam)yahoo.com> wrote:


>>
>> Bill
>
>Hi - I was thinking of going with ZEN who I believe give you more than one
>static address. The system I propose will have a router/modem with an
>inbuilt wireless access point. All of the PCs would be allocated a fixed IP
>address and thus be directly connected to the internet. I would not want
>this for my sons PC and would him to have a private address. As well I have
>a laptop connected by its own inbuilt wireless point and another laptop
>connected via a wireless station. This wireless station needs its own IP
>address as well as the PC it is connected to. I also have a iPaq with its
>own wireless link.
>

What you state can be done but is a very expensive way of doing it ?

I have a fixed address so I can get in to one of my customers Networks with
security based on my IP address, another reason would be if you want to run
servers at home. Other than that a fixed IP address is not going to offer
you many benefits and a block of them will cost yet more.

Are you intending to run servers ?

Andy

"(E-Mail Removed)" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> "Kimball K Kinnison" <nospam@(nospam)yahoo.com> wrote:
>
>
> >>
> >> Bill
> >
> >Hi - I was thinking of going with ZEN who I believe give you more than
one
> >static address. The system I propose will have a router/modem with an
> >inbuilt wireless access point. All of the PCs would be allocated a fixed
IP
> >address and thus be directly connected to the internet. I would not want
> >this for my sons PC and would him to have a private address. As well I
have
> >a laptop connected by its own inbuilt wireless point and another laptop
> >connected via a wireless station. This wireless station needs its own IP
> >address as well as the PC it is connected to. I also have a iPaq with its
> >own wireless link.
> >
>
> What you state can be done but is a very expensive way of doing it ?
>
> I have a fixed address so I can get in to one of my customers Networks
with
> security based on my IP address, another reason would be if you want to
run
> servers at home. Other than that a fixed IP address is not going to offer
> you many benefits and a block of them will cost yet more.
>
> Are you intending to run servers ?
>
> Andy

As I understand it (please correct me if I am wrong) ZEN offer a block of 8
fixed IP addresses free

http://www.zenadsl.com/Services/home500.asp

On Mon, 22 Sep 2003 09:31:15 +0100, Kimball K Kinnisonnospam wrote:

> "phoenix" <(E-Mail Removed)> wrote in message
> news:190fpuynvm0iv.14e07vsdr5s0n$.(E-Mail Removed).. .
>> On Mon, 22 Sep 2003 08:31:53 +0100, Kimball K Kinnisonnospam wrote:
>>
>>> As I understand it - if I go to an ISP like ZEN and get fixed IP
> addresses
>>> it is set up as follows. One fixed IP address for the router and one
> each
>>> for the PCs on the network. What happens to a Wireless access point and
> a
>>> Wireless station? Also how do you set up a PC you don't want to have a
> fixed
>>> IP address but only appear on the internal network?
>>
>> Hi
>>
>> No, that;s not quite correct. If you get one fixed IP then the public IP
>> address assigned by your ISP is allocated to the device attached to your
>> connection. If it's a single PC then it gets the IP address, if it's a
>> router then it gets the public IP address and any devices attached to it
>> are given a private IP address such as 192.168.0.x (depending on the
>> router).
>>
>> If you have a router in your scenario then you would forward ports (for
> any
>> applications that need them) through it to the IP address of the PC that
>> runs the application.
>>
>> A better description of your proposed setup and what you're trying to
>> achieve may be more helpful.
>>
>> Regards
>>
>> Bill
>
> Hi - I was thinking of going with ZEN who I believe give you more than one
> static address. The system I propose will have a router/modem with an
> inbuilt wireless access point. All of the PCs would be allocated a fixed IP
> address and thus be directly connected to the internet. I would not want
> this for my sons PC and would him to have a private address. As well I have
> a laptop connected by its own inbuilt wireless point and another laptop
> connected via a wireless station. This wireless station needs its own IP
> address as well as the PC it is connected to. I also have a iPaq with its
> own wireless link.

Hi

In that case the router is redundant. I guess you won't be having more than
eight PCs attached to your connection? If you want to connect multiple PCs
to you connection the you only need a switch to connect to the service, all
the public IP addresses will then be allocated to each device connected to
it.

I'm afraid I don't use ADSL (I'm a Blueyonder cable broadband user) so I
don't know much about ZEN. I know that one of the guys at
www.cm-forums.co.uk has the ZEN ADSL connection with 8 IPs, post in the
ADSL forum if you want some help in setting it up or just to talk about
what you need.

HTH

Regards

Bill

In article <bkmfkc$3ah54$(E-Mail Removed)>, "Kimball K
Kinnison" <nospam@(nospam)yahoo.com> said...
> "(E-Mail Removed)" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
> > "Kimball K Kinnison" <nospam@(nospam)yahoo.com> wrote:
> >
> >
> > >>
> > >> Bill
> > >
> > >Hi - I was thinking of going with ZEN who I believe give you more than
> one
> > >static address. The system I propose will have a router/modem with an
> > >inbuilt wireless access point. All of the PCs would be allocated a fixed
> IP
> > >address and thus be directly connected to the internet. I would not want
> > >this for my sons PC and would him to have a private address. As well I
> have
> > >a laptop connected by its own inbuilt wireless point and another laptop
> > >connected via a wireless station. This wireless station needs its own IP
> > >address as well as the PC it is connected to. I also have a iPaq with its
> > >own wireless link.
> > >
> >
> > What you state can be done but is a very expensive way of doing it ?
> >
> > I have a fixed address so I can get in to one of my customers Networks
> with
> > security based on my IP address, another reason would be if you want to
> run
> > servers at home. Other than that a fixed IP address is not going to offer
> > you many benefits and a block of them will cost yet more.
> >
> > Are you intending to run servers ?
> >
> > Andy
>
> As I understand it (please correct me if I am wrong) ZEN offer a block of 8
> fixed IP addresses free
>
> http://www.zenadsl.com/Services/home500.asp
>
>
>
That correct, 8 IP addresses (5 usable after the router takes one for
itself) for the same price as 1 static address.

"Kimball K Kinnison" <nospam@(nospam)yahoo.com> wrote:

> As I understand it - if I go to an ISP like ZEN and get fixed IP addresses
> it is set up as follows. One fixed IP address for the router and one each
> for the PCs on the network. What happens to a Wireless access point and a
> Wireless station? Also how do you set up a PC you don't want to have a
fixed
> IP address but only appear on the internal network?
>

Hi,
I have 8 IP's, but from A&A, not Zen. The way things work for me is
that I have one IP assigned to the router, one taken by network address, one
taken by broadcast address and 5 that are usable on my network.

The wireless access points I have seen work in bridging mode, which means
that the wireless section of your network is indistinguishable from the
wired part. With this type of access point, you would have to use fixed
public IP's for your wireless machines as well.

To get the wireless segment onto private IP's, you would need a router that
supports full routing mode for your fixed address PC's and will perform NAT
for your wireless segment at the same time. Many routers will only allow you
to use full routing mode or NAT mode, but not both at the same time, which
is what you need.

One router that allows you to do this is the vigour 2600
http://www.seg.co.uk/products/a_vigor2600.html, but there may be others.
However, if you are going down this route, you may as well buy the 2600WE
which has the wireless access point built in, and all the functionality you
require.

Alternatively, you would need to ensure you get an AP that has NAT and a
DHCP server built in. I assume these are available, but do not know which
models come with this facility. With this option, you would assign a static
IP to the AP, and it would perform the NAT for the machines connected by
your wireless segment.

Whatever you do, with fixed IPs, make sure your router has a built in
firewall (the vigour 2600 has).

--

Martin

"Martin Cooper" <(E-Mail Removed)> wrote in message
news:gemini.3f6f35070053299c%(E-Mail Removed). ..
> "Kimball K Kinnison" <nospam@(nospam)yahoo.com> wrote:
>
> > As I understand it - if I go to an ISP like ZEN and get fixed IP
addresses
> > it is set up as follows. One fixed IP address for the router and one
each
> > for the PCs on the network. What happens to a Wireless access point and
a
> > Wireless station? Also how do you set up a PC you don't want to have a
> fixed
> > IP address but only appear on the internal network?
> >
>
> Hi,
> I have 8 IP's, but from A&A, not Zen. The way things work for me is
> that I have one IP assigned to the router, one taken by network address,
one
> taken by broadcast address and 5 that are usable on my network.
>
> The wireless access points I have seen work in bridging mode, which means
> that the wireless section of your network is indistinguishable from the
> wired part. With this type of access point, you would have to use fixed
> public IP's for your wireless machines as well.
>
> To get the wireless segment onto private IP's, you would need a router
that
> supports full routing mode for your fixed address PC's and will perform
NAT
> for your wireless segment at the same time. Many routers will only allow
you
> to use full routing mode or NAT mode, but not both at the same time, which
> is what you need.
>
> One router that allows you to do this is the vigour 2600
> http://www.seg.co.uk/products/a_vigor2600.html, but there may be others.
> However, if you are going down this route, you may as well buy the 2600WE
> which has the wireless access point built in, and all the functionality
you
> require.
>
> Alternatively, you would need to ensure you get an AP that has NAT and a
> DHCP server built in. I assume these are available, but do not know which
> models come with this facility. With this option, you would assign a
static
> IP to the AP, and it would perform the NAT for the machines connected by
> your wireless segment.
>
> Whatever you do, with fixed IPs, make sure your router has a built in
> firewall (the vigour 2600 has).
>
> --
>
> Martin

Many thanks for this comprehensive description

John