| Author |
Message |
Guest
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 Posted:
Wed Jan 05, 2005 12:57 am Post subject:
Hub/Router setup question for RoadRunner in upstate New York |
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In the Capital District, Time Warner lets you have 3 unique IP
addresses. I have been using a DLink Wireless router for a while with
success. I plugged the cable modem into the WAN jack of the router,
then plugged my PC into the router. Two other PCs in the house had
wireless cards and got to the internet that way. Time Warner assigned
the router its IP address, and the router used DHCP to assign IP
addresses to all the computers in the house. Also, we were all able to
use Windows networking to share printers and files.
Here's my question: with RoadRunner, does each IP address get a fixed
amount of bandwidth? In the case I outline above, are all of our
computers sharing the same pipe? The reason I ask is that I just
picked up Vonage service and I'm thinking that I could plug the cable
modem into a hub, then plug the router into the hub and the Vonage box
into the hub. All of our PCs would still be plugged into the router,
but the Vonage box would get its own IP from RoadRunner and, I am
hoping, its own bandwidth so that it wouldn't fluctuate based on what
we were doing on our PCs.
If that works, I may just unplug my PC from the router and put it into
the hub to leverage the three IPs that RoadRunner provides so that my
PC could get maximum bandwidth while the wireless PCs would have their
own pool. Only problem then is that I'm thinking our home networking
would get screwed up since my PC would be outside of the router. :(
Thanks for any help you can provide!
Lerch |
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Rick Merrill
Guest
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| Posted:
Wed Jan 05, 2005 4:13 am Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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mike.lerch@gmail.com wrote:
| Quote: | In the Capital District, Time Warner lets you have 3 unique IP
addresses. I have been using a DLink Wireless router for a while with
success. I plugged the cable modem into the WAN jack of the router,
then plugged my PC into the router. Two other PCs in the house had
wireless cards and got to the internet that way. Time Warner assigned
the router its IP address, and the router used DHCP to assign IP
addresses to all the computers in the house. Also, we were all able to
use Windows networking to share printers and files.
Here's my question: with RoadRunner, does each IP address get a fixed
amount of bandwidth? In the case I outline above, are all of our
computers sharing the same pipe? The reason I ask is that I just
picked up Vonage service and I'm thinking that I could plug the cable
modem into a hub, then plug the router into the hub and the Vonage box
into the hub. All of our PCs would still be plugged into the router,
but the Vonage box would get its own IP from RoadRunner and, I am
hoping, its own bandwidth so that it wouldn't fluctuate based on what
we were doing on our PCs.
If that works, I may just unplug my PC from the router and put it into
the hub to leverage the three IPs that RoadRunner provides so that my
PC could get maximum bandwidth while the wireless PCs would have their
own pool. Only problem then is that I'm thinking our home networking
would get screwed up since my PC would be outside of the router. :(
Thanks for any help you can provide!
Lerch
|
You need to turn off the DHCP and routing function of the Router (or get
a simple hub) so that the ISP's DHCP assigns IP numbers to each of the
PCs. Then and only then will each PC get it's "full" bandwidth.
(Not that you will no longer have a LAN, but 3 PCs on a WAN. You will
have to teach each PC the IP address of the others, and all your local
trafic will be 'exposed' to the internet.)
- RM |
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Bill M.
Guest
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| Posted:
Wed Jan 05, 2005 8:00 am Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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|
On Tue, 04 Jan 2005 18:13:13 -0500, Rick Merrill <RM@THROW.net> wrote:
| Quote: | mike.lerch@gmail.com wrote:
In the Capital District, Time Warner lets you have 3 unique IP
addresses. I have been using a DLink Wireless router for a while with
success. I plugged the cable modem into the WAN jack of the router,
then plugged my PC into the router. Two other PCs in the house had
wireless cards and got to the internet that way. Time Warner assigned
the router its IP address, and the router used DHCP to assign IP
addresses to all the computers in the house. Also, we were all able to
use Windows networking to share printers and files.
Here's my question: with RoadRunner, does each IP address get a fixed
amount of bandwidth? In the case I outline above, are all of our
computers sharing the same pipe? The reason I ask is that I just
picked up Vonage service and I'm thinking that I could plug the cable
modem into a hub, then plug the router into the hub and the Vonage box
into the hub. All of our PCs would still be plugged into the router,
but the Vonage box would get its own IP from RoadRunner and, I am
hoping, its own bandwidth so that it wouldn't fluctuate based on what
we were doing on our PCs.
If that works, I may just unplug my PC from the router and put it into
the hub to leverage the three IPs that RoadRunner provides so that my
PC could get maximum bandwidth while the wireless PCs would have their
own pool. Only problem then is that I'm thinking our home networking
would get screwed up since my PC would be outside of the router. :(
Thanks for any help you can provide!
Lerch
You need to turn off the DHCP and routing function of the Router (or get
a simple hub) so that the ISP's DHCP assigns IP numbers to each of the
PCs. Then and only then will each PC get it's "full" bandwidth.
|
I believe bandwidth is limited by the cable modem's config file, not
by the number of IP addresses you're allowed to pull.
| Quote: | (Not that you will no longer have a LAN, but 3 PCs on a WAN. You will
have to teach each PC the IP address of the others, and all your local
trafic will be 'exposed' to the internet.)
- RM
|
--
Bill |
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Guest
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| Posted:
Wed Jan 05, 2005 8:00 am Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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mike.lerch@gmail.com wrote:
| Quote: |
Here's my question: with RoadRunner, does each IP address get a fixed
amount of bandwidth?
|
No. Your cable modem gets a fixed amount of bandwidth. If you have
multiple IPs, they share the available bandwidth on a demand basis.
That is, if only one device is trying to use bandwidth, it can use all
of it, but if two devices are trying to use bandwidth, each gets half.
Class of service is intended to prioritize bandwidth so, for example,
your VOIP packets could take precedence over FTP packets, but most
cable systems don't support it yet.
-Larry Jones
I don't think math is a science, I think it's a religion. -- Calvin |
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$Bill
Guest
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| Posted:
Wed Jan 05, 2005 8:00 am Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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lawrence.jones@ugs.com wrote:
| Quote: | mike.lerch@gmail.com wrote:
Here's my question: with RoadRunner, does each IP address get a fixed
amount of bandwidth?
No. Your cable modem gets a fixed amount of bandwidth. If you have
multiple IPs, they share the available bandwidth on a demand basis.
That is, if only one device is trying to use bandwidth, it can use all
of it, but if two devices are trying to use bandwidth, each gets half.
Class of service is intended to prioritize bandwidth so, for example,
your VOIP packets could take precedence over FTP packets, but most
cable systems don't support it yet.
|
Of course they can triple the fixed amount you get so, in essence, you
would have triple the bandwidth of everyone else (unless they also have
3 IP addresses - and then, who knows). |
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Rick Merrill
Guest
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| Posted:
Wed Jan 05, 2005 4:18 pm Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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|
Bill M. wrote:
| Quote: | On Tue, 04 Jan 2005 18:13:13 -0500, Rick Merrill <RM@THROW.net> wrote:
mike.lerch@gmail.com wrote:
In the Capital District, Time Warner lets you have 3 unique IP
addresses. I have been using a DLink Wireless router for a while with
success. I plugged the cable modem into the WAN jack of the router,
then plugged my PC into the router. Two other PCs in the house had
wireless cards and got to the internet that way. Time Warner assigned
the router its IP address, and the router used DHCP to assign IP
addresses to all the computers in the house. Also, we were all able to
use Windows networking to share printers and files.
Here's my question: with RoadRunner, does each IP address get a fixed
amount of bandwidth? In the case I outline above, are all of our
computers sharing the same pipe? The reason I ask is that I just
picked up Vonage service and I'm thinking that I could plug the cable
modem into a hub, then plug the router into the hub and the Vonage box
into the hub. All of our PCs would still be plugged into the router,
but the Vonage box would get its own IP from RoadRunner and, I am
hoping, its own bandwidth so that it wouldn't fluctuate based on what
we were doing on our PCs.
If that works, I may just unplug my PC from the router and put it into
the hub to leverage the three IPs that RoadRunner provides so that my
PC could get maximum bandwidth while the wireless PCs would have their
own pool. Only problem then is that I'm thinking our home networking
would get screwed up since my PC would be outside of the router. :(
Thanks for any help you can provide!
Lerch
You need to turn off the DHCP and routing function of the Router (or get
a simple hub) so that the ISP's DHCP assigns IP numbers to each of the
PCs. Then and only then will each PC get it's "full" bandwidth.
I believe bandwidth is limited by the cable modem's config file, not
by the number of IP addresses you're allowed to pull.
|
Most Docsis compliant cable modems have the ability to handle three IP
addresses and throttle per each. e.g. this lets there be 2 home and 1
business account on one modem.
| Quote: | (Not that you will no longer have a LAN, but 3 PCs on a WAN. You will
have to teach each PC the IP address of the others, and all your local
trafic will be 'exposed' to the internet.)
- RM
|
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Rick Merrill
Guest
|
| Posted:
Wed Jan 05, 2005 4:19 pm Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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|
lawrence.jones@ugs.com wrote:
| Quote: | mike.lerch@gmail.com wrote:
Here's my question: with RoadRunner, does each IP address get a fixed
amount of bandwidth?
No. Your cable modem gets a fixed amount of bandwidth. If you have
multiple IPs, they share the available bandwidth on a demand basis.
|
What brand modem and model do you have?
| Quote: | That is, if only one device is trying to use bandwidth, it can use all
of it, but if two devices are trying to use bandwidth, each gets half.
Class of service is intended to prioritize bandwidth so, for example,
your VOIP packets could take precedence over FTP packets, but most
cable systems don't support it yet.
-Larry Jones
I don't think math is a science, I think it's a religion. -- Calvin |
|
|
| Back to top |
|
|
news.comcast.giganews.com
Guest
|
| Posted:
Wed Jan 05, 2005 6:54 pm Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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|
Rick Merrill wrote:
| Quote: | Most Docsis compliant cable modems have the ability to handle three IP
addresses and throttle per each. e.g. this lets there be 2 home and 1
business account on one modem.
|
The DOCSIS method of capping bandwidth is by capping the modem.
Theoretically you could achieve a per-IP cap at a router past the CMTS.
So if the business account IP were to be capped at, say, 5000, and each
of the two other IP's were capped at 3000, then the DOCSIS modem would
need to be capped at 11000 or above, or not be capped.
This would be a very odd-ball set-up, and I don't know of any large
cable providers currently doing it that way. Typically the providers
take advantage of just the DOCSIS method of capping the modem.
So to recap on caps (pun intended), the scheme you describe is not a
function of the DOCSIS system, but could, in theory, be something added
on outside the DOCSIS system.
--
Warren H.
==========
Disclaimer: My views reflect those of myself, and not my
employer, my friends, nor (as she often tells me) my wife.
Any resemblance to the views of anybody living or dead is
coincidental. No animals were hurt in the writing of this
response -- unless you count my dog who desperately wants
to go outside now.
Compare the newest tax preparation software apps:
http://www.holzemville.com/mall/taxes/index.html |
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Guest
|
| Posted:
Thu Jan 06, 2005 6:09 pm Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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Rick Merrill <RM@throw.net> wrote:
| Quote: |
lawrence.jones@ugs.com wrote:
No. Your cable modem gets a fixed amount of bandwidth. If you have
multiple IPs, they share the available bandwidth on a demand basis.
What brand modem and model do you have?
|
It doesn't matter, all DOCSIS modems work that way. The bandwidth cap
is on the modem, not the IP address.
-Larry Jones
How am I supposed to learn surgery if I can't dissect anything? -- Calvin |
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Guest
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| Posted:
Thu Jan 06, 2005 6:09 pm Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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$Bill <news@spamolatodbe.com> wrote:
| Quote: |
Of course they can triple the fixed amount you get so, in essence, you
would have triple the bandwidth of everyone else (unless they also have
3 IP addresses - and then, who knows).
|
I've never heard of an MSO that does that. Not even the ones that
charge extra for additional IPs.
-Larry Jones
We don't ATTEND parties, we just CRASH 'em. -- Calvin |
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Rick Merrill
Guest
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| Posted:
Fri Jan 07, 2005 12:24 am Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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lawrence.jones@ugs.com wrote:
| Quote: | Rick Merrill <RM@throw.net> wrote:
lawrence.jones@ugs.com wrote:
No. Your cable modem gets a fixed amount of bandwidth. If you have
multiple IPs, they share the available bandwidth on a demand basis.
What brand modem and model do you have?
It doesn't matter, all DOCSIS modems work that way. The bandwidth cap
is on the modem, not the IP address.
|
Do you have a source for that? I have heard (but I too am sourceless)
that "some modems" have the ability to recognize up to three MAC
addresses and throttle each. This is possible because the modem uses a
version of time division modulation for upstream transmissions. In other
words (what I have heard is that) each IP gets a separate time slot.
[Note that each IP must be a separate NIC (by definition).] - RM |
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news.comcast.giganews.com
Guest
|
| Posted:
Fri Jan 07, 2005 2:35 am Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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|
Rick Merrill wrote:
| Quote: |
It doesn't matter, all DOCSIS modems work that way. The bandwidth
cap
is on the modem, not the IP address.
Do you have a source for that? I have heard (but I too am sourceless)
that "some modems" have the ability to recognize up to three MAC
addresses and throttle each. This is possible because the modem uses a
version of time division modulation for upstream transmissions. In
other
words (what I have heard is that) each IP gets a separate time slot.
[Note that each IP must be a separate NIC (by definition).] - RM
|
You heard wrong.
And how do you expect someone to cite a source for something that
doesn't exist when you're not willing to post a source for something
that you think does exist? It's up to you to show he's wrong in saying
it doesn't work that way by showing an example of it working that way.
He can show 1,000,000 citations showing it working the way he says it's
done, but that doesn't show he's right, and you're wrong. All it takes
is for you to post one concrete example showing it works the way you
think you've heard.
BTW... While each MAC gets it's own IP, and each IP can be assigned to
only one MAC, it does not follow that each IP must be a separate NIC
because a NIC can have more than one MAC. (A NIC can have more than one
interface, and each interface in use must have it's own MAC.)
--
Warren H.
==========
Disclaimer: My views reflect those of myself, and not my
employer, my friends, nor (as she often tells me) my wife.
Any resemblance to the views of anybody living or dead is
coincidental. No animals were hurt in the writing of this
response -- unless you count my dog who desperately wants
to go outside now.
Compare the newest tax preparation software apps:
http://www.holzemville.com/mall/taxes/index.html |
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Rick Merrill
Guest
|
| Posted:
Fri Jan 07, 2005 2:59 am Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
|
|
news.comcast.giganews.com wrote:
| Quote: | Rick Merrill wrote:
It doesn't matter, all DOCSIS modems work that way. The bandwidth
cap
is on the modem, not the IP address.
Do you have a source for that? I have heard (but I too am sourceless)
that "some modems" have the ability to recognize up to three MAC
addresses and throttle each. This is possible because the modem uses a
version of time division modulation for upstream transmissions. In
other
words (what I have heard is that) each IP gets a separate time slot.
[Note that each IP must be a separate NIC (by definition).] - RM
You heard wrong.
And how do you expect someone to cite a source for something that
doesn't exist when you're not willing to post a source for something
that you think does exist? It's up to you to show he's wrong in saying
it doesn't work that way by showing an example of it working that way.
He can show 1,000,000 citations showing it working the way he says it's
done, but that doesn't show he's right, and you're wrong. All it takes
is for you to post one concrete example showing it works the way you
think you've heard.
|
Maybe. But down boy !!
| Quote: | BTW... While each MAC gets it's own IP, and each IP can be assigned to
only one MAC, it does not follow that each IP must be a separate NIC
because a NIC can have more than one MAC. (A NIC can have more than one
interface, and each interface in use must have it's own MAC.)
|
Never heard of that! |
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$Bill
Guest
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| Posted:
Fri Jan 07, 2005 3:33 am Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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|
Rick Merrill wrote:
| Quote: | BTW... While each MAC gets it's own IP, and each IP can be assigned to
only one MAC, it does not follow that each IP must be a separate NIC
because a NIC can have more than one MAC. (A NIC can have more than one
interface, and each interface in use must have it's own MAC.)
Never heard of that!
|
That's a play on words IMO. You can have an adapter card that has
more than 1 ethernet interface (but it's highly rare in the PC world).
People tend to think of a NIC as being a single interface. So although
the stmt is correct - it's far from the norm. It's pretty much the
same thing as combining 2 or 4 (for example) NICs into a single card -
everything is still pretty much treated as separate devices and you
could logically think of it as 2 or 4 NICs rather than 1 NIC with 2
or 4 interfaces. I played with cards like this years ago on Sun
workstations. |
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news.comcast.giganews.com
Guest
|
| Posted:
Fri Jan 07, 2005 6:32 am Post subject:
Re: Hub/Router setup question for RoadRunner in upstate New |
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|
$Bill wrote:
| Quote: | That's a play on words IMO. You can have an adapter card that has
more than 1 ethernet interface (but it's highly rare in the PC world).
People tend to think of a NIC as being a single interface. So
although
the stmt is correct - it's far from the norm. It's pretty much the
same thing as combining 2 or 4 (for example) NICs into a single card -
everything is still pretty much treated as separate devices and you
could logically think of it as 2 or 4 NICs rather than 1 NIC with 2
or 4 interfaces. I played with cards like this years ago on Sun
workstations.
|
You're right. Multiple physical interfaces on NIC's are pretty rare for
PC's. But it also slipped my mind that multihoming is fairly common. In
that case, the same physical interface can have more than one IP
address, so a MAC can have multiple IP's, and thus a NIC can have
multiple IP's. This is actually fairly easy to setup on Windows
NT/2000/XP, though you'd probably see it implemented on servers rather
than workstations.
--
Warren H.
==========
Disclaimer: My views reflect those of myself, and not my
employer, my friends, nor (as she often tells me) my wife.
Any resemblance to the views of anybody living or dead is
coincidental. No animals were hurt in the writing of this
response -- unless you count my dog who desperately wants
to go outside now.
Compare the newest tax preparation software apps:
http://www.holzemville.com/mall/taxes/index.html |
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