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Question About Running Multiple Devices On One Modem
[fr31ns]Karrde
The Handy Murse


Posts: 2,655
Joined: May 2008
#1
12-12-2009, 04:12 PM

Something I've always wondered about and figured I'd ask you guys (HeK ;P ).  Why is it that I need to reboot my modem whenever I switch between a different computer/device?  IE I'm plugged into my laptop and need to reboot the modem before it works on the desktop.

<+Karrde> welp, time to learn some basic patterning skills
<@Negate> 12121212121212121212
<@Negate> there is a simple pattern
<+Karrde> I changed my mind.  Gonna cosplay as a gay demon from hell and get negate raped instead XD
<+Caffeine`work> Karrde: Gay demon? Why would you need to cosplay just go as yourself
<+FlyingMongoose> Caffeine`work: Karrde would actually have to tone it down some.
Reply
CaffeinePowered
Mad Hatter
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Posts: 12,998
Joined: Mar 2008
#2
12-12-2009, 04:19 PM

Why not just use a router?

[Image: caffsighl7.jpg]Â[Image: 1184299259221.gif]
Sig by Joel
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zaneyard
Made with Whole Gainz (tm)
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Posts: 6,930
Joined: Jun 2008
#3
12-12-2009, 05:24 PM

(12-12-2009, 04:19 PM)Caffeine link Wrote: Get a router
with a built in switch

(04-09-2013, 11:24 PM)Dr. Zaius link Wrote:well i'm not really understanding how it's faster internet. and like google just magically rolls outs this stuff and it's 100 times faster than my internet? why? that doesn't set off any alarms to anyone?

(11-07-2012, 11:15 PM)at0m link Wrote:I MAY OR MAY NOT HAVE OVERINDULGED ON RUM AND COKES AT OUTBACK STEAKHOUSE

THE BARTENDER WAS BRAGGING ABOUT BEING A LEFTY. I SAID I WAS A RIGHTY, BUT THAT I COULD UNDO A BRA WITH JUST MY LEFT HAND. ASKED HER IF THAT COUNTED AS BEING AMBIDEXTROUS. SHE SAID 'NOT REALLY'. tHEN HANDED ME ANOTHER DRINK.

I COUN THAT AS A WIN

CUBA LIBRE
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HeK
Rotartsinimda
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Posts: 4,183
Joined: Jun 2015
#4
12-12-2009, 09:13 PM

ooooh, I know the answer to this!!

If you are using a DOCSIS (ie, Motorola Surfboard) cable modem, it has an internal DHCP server which only allows a certain number of leases. Lets say your ISP allows one IP address (with the option to add extras for lets say, $5/month each) and when a computer first requests an IP address, the DHCP server associates that address with the hardware MAC address of your network card. The DHCP server refuses to allocate additional IP addresses unless specified to do so.

When you reboot your modem to change computers, the DHCP allocations stored in memory are lost.

You are best off buying/building a router, especially wireless if you would like additional freedom with your laptop.

A weird alternative is to override the MAC address on one of the computers, and match it to the other. I would still advise a router, as it offers protection via a NAT separated firewall.
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[fr31ns]Karrde
The Handy Murse


Posts: 2,655
Joined: May 2008
#5
12-12-2009, 11:13 PM

(12-12-2009, 05:24 PM)zaneyard link Wrote: [quote author=Caffeine link=topic=3966.msg126429#msg126429 date=1260652796]
Get a router
with a built in switch
[/quote]

Yes I know I could do that.  I just wanted to know the technical reason for it.  Just curious Tongue  Thanks HeK.

<+Karrde> welp, time to learn some basic patterning skills
<@Negate> 12121212121212121212
<@Negate> there is a simple pattern
<+Karrde> I changed my mind.  Gonna cosplay as a gay demon from hell and get negate raped instead XD
<+Caffeine`work> Karrde: Gay demon? Why would you need to cosplay just go as yourself
<+FlyingMongoose> Caffeine`work: Karrde would actually have to tone it down some.
Reply
zaneyard
Made with Whole Gainz (tm)
***

Posts: 6,930
Joined: Jun 2008
#6
12-12-2009, 11:31 PM

Quote:Karrde link=topic=3966.msg126491#msg126491 date=1260677594]
[quote author=zaneyard link=topic=3966.msg126442#msg126442 date=1260656696]
[quote author=Caffeine link=topic=3966.msg126429#msg126429 date=1260652796]
Get a router
with a built in switch
[/quote]

Yes I know I could do that.  I just wanted to know the technical reason for it.  Just curious Tongue  Thanks HeK.
[/quote]
well i could have told you the technical reason for that, but i wouldn't be very helpful to fix the problem though would i?

(04-09-2013, 11:24 PM)Dr. Zaius link Wrote:well i'm not really understanding how it's faster internet. and like google just magically rolls outs this stuff and it's 100 times faster than my internet? why? that doesn't set off any alarms to anyone?

(11-07-2012, 11:15 PM)at0m link Wrote:I MAY OR MAY NOT HAVE OVERINDULGED ON RUM AND COKES AT OUTBACK STEAKHOUSE

THE BARTENDER WAS BRAGGING ABOUT BEING A LEFTY. I SAID I WAS A RIGHTY, BUT THAT I COULD UNDO A BRA WITH JUST MY LEFT HAND. ASKED HER IF THAT COUNTED AS BEING AMBIDEXTROUS. SHE SAID 'NOT REALLY'. tHEN HANDED ME ANOTHER DRINK.

I COUN THAT AS A WIN

CUBA LIBRE
Reply
[fr31ns]Karrde
The Handy Murse


Posts: 2,655
Joined: May 2008
#7
12-15-2009, 01:15 AM

There's no real problem though Tongue  I know I just need to get a reasonable router, I'm just lazy.

<+Karrde> welp, time to learn some basic patterning skills
<@Negate> 12121212121212121212
<@Negate> there is a simple pattern
<+Karrde> I changed my mind.  Gonna cosplay as a gay demon from hell and get negate raped instead XD
<+Caffeine`work> Karrde: Gay demon? Why would you need to cosplay just go as yourself
<+FlyingMongoose> Caffeine`work: Karrde would actually have to tone it down some.
Reply


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