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Big_D
Premium
join:2003-06-02
Augusta, GA
| Re: Dual Cable for home Your on the right track. You would need to purchase (or rent) 2 cable modems, as well as a dual WAN router. Of course you will also need to subscribe to 2 accounts from Comcast. One thing to note is that your bandwidth will not be doubled for any one download...rather the router would perform load balancing. For example on the 3 Mbps plan, you could have 2 downloads running at the same time at that speed.
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You want the truth? You can't handle the truth! | |
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 | DonLibes
Premium,ExMod 2001
join:2003-01-19
| Re: Dual Cable for home said by Big_D  :
Your on the right track. You would need to purchase (or rent) 2 cable modems, as well as a dual WAN router. Of course you will also need to subscribe to 2 accounts from Comcast. One thing to note is that your bandwidth will not be doubled for any one download...rather the router would perform load balancing. For example on the 3 Mbps plan, you could have 2 downloads running at the same time at that speed.
Why do you say that a single download wouldn't speed up? The router should distribute outbound packets equally across the two modems, no? Anyway, the router has no idea of what's going on at the application level. | |
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J D McDorce
Premium
join:2001-12-29
Westland, MI
1 edit | Re: Dual Cable for home I believe what he was referring to is that you're not going to exceed the capped bandwidth of a single modem for a single download when using a Dual WAN router, meaning two modems capped at 3300 kbps will not give you a single 6600 kbps download (a single download would still max (theoretically) at 3300). The same goes with upload - there is no magic means to say here, half of you go this way, half of you go the other way, and all of you meet up here. (Although I have seen claims of software utilities that could accomplish this.)
One other comment on Dual WAN routers (take it or leave it): you may want to consider diversifying your connections (i.e. one cable, one DSL). In the off chance one goes down, you still have connectivity to the internet. | |
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Big_D
Premium
join:2003-06-02
Augusta, GA
| Re: Dual Cable for home said by J D McDorce :
I believe what he was referring to....
Yup, that's what I meant. Thanks for explaining it better then I did.
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You want the truth? You can't handle the truth! | |
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| | | DonLibes
Premium,ExMod 2001
join:2003-01-19
| said by J D McDorce :
I believe what he was referring to is that you're not going to exceed the capped bandwidth of a single modem for a single download when using a Dual WAN router, meaning two modems capped at 3300 kbps will not give you a single 6600 kbps download (a single download would still max (theoretically) at 3300). The same goes with upload - there is no magic means to say here, half of you go this way, half of you go the other way, and all of you meet up here.
Many years ago, I wrote routing software and as I remember it, this is basic router 101 - routers send packets to the least congested path. This is how the internet achieves reliability in the presence of congestion or outright failure of a section. You don't have to restart an ftp just because a router somewhere in Missoula went down. If this is no longer the case, we've taken a giant step backward in network technology. | |
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Big_D
Premium
join:2003-06-02
Augusta, GA
| Re: Dual Cable for home said by DonLibes :
Many years ago, I wrote routing software and as I remember it, this is basic router 101 - routers send packets to the least congested path.
While I can't say I've ever written any router software, I believe what is happening is that the packets will follow on or the other path, but not both at the same time, therefor you would not get double the speed.
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You want the truth? You can't handle the truth! | |
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| | | | | Kip patterson
Premium
join:2000-10-23
Columbus, OH | Re: Dual Cable for home That's it - if you want the two "circuits" bonded under one IP, then that has to come from the ISP. Some dialups offered this at one time, but I'm not aware of any cable or DSL ISP's that currently offer it. | |
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J D McDorce
Premium
join:2001-12-29
Westland, MI | The trick becomes how to split a file on one end, send it to (or from) two different IP addresses, and recombine it on the other end. While routing can be flexible, it is still point to point (source IP address to destination IP address). | |
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| | | | | DonLibes
Premium,ExMod 2001
join:2003-01-19
| Re: Dual Cable for home said by imrf :
said by DonLibes :
routers send packets to the least congested path.
Your talking about OSPF or IGRP routing, yes core internet routers use that method. The cheap Linksys or SMC or whatever brand doesn't use that method for routing. There is the hacked WRT-54g firmware that enable OSPF and BGP routing, otherwise they all just use RIP.
If true, then how would two cable modems ever help - even in the two-file-transfer scenario. If the router is so stupid as to choose and stay with one route, won't the 2nd cable modem just remain idle? The router cannot know what's going on at the application level. | |
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| | | | | | | phr0ze
join:2002-12-06
Columbia, MD
| Re: Dual Cable for home Forgive me but what do you need all that speed for? I have 10 computers on my network and the only thing I desire is more U/L speed but not so bad that I would go dual. The only reason I'd ever consider dual is for redundancy for when one connection is down.
BTW: if you need even more speed for an aditional $10 a month per account you can get 4300/386. | |
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J D McDorce
Premium
join:2001-12-29
Westland, MI
| There are LAN side requests and WAN side requests. A request goes from my computer to my router to get test64 from OOL's ftp site. Neither WAN is busy, so the router sends a request via WAN1 to send test64 to 68.X.X.X (the WAN1 IP address). There is a second request, this time to get test64.exe from the same site. Since WAN1 is now busy, the router requests that test64.exe be sent to 69.X.X.X (the WAN2 IP address). As the packets come in, they arrive at the router and are forwarded to the 192.X.X.X address of my computer.
The public IP addresses reside in the router and are the public destination (or source, if uploading) of the packets. | |
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skinticket
@verizon.ne
| Thanks for quick response. Does comcast allow purchasing of other modems or do they require a specific modem? I'd like to get the best I can if it doesn't matter. I haven't really researched cable modems so I'm at a loss there either way. For a dual wan router do I really need something with a lot of bells and whistles? I'm not running a business, just a bunch of internet junkies. | |
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Big_D
Premium
join:2003-06-02
Augusta, GA
| Re: Dual Cable for home said by skinticket:
Does comcast allow purchasing of other modems or do they require a specific modem?
Comcast has an official list of approved modems, which can be found here. »www.comcast.com/Support/Corp1/FA···450.html
Basically any DOCSIS modem should work, but I'd recommend getting a DOCSIS 2.0 modem if buying a new one.
quote:
For a dual wan router do I really need something with a lot of bells and whistles?
No, but either way your going to find that dual wan routers fall in a higher pricing group then regular routers.
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germantown
| Speed
Dwn/up Claimed
ISP User @ ZIP User
Has Day
Hour
(EST) domain
3119/217 comcast.net anon @ 20874 3000/256 20th 08:08AM nrockv01.md.comcast.net
2947/247 comcast.net anon @ 20874 3000/256 11th 07:56PM nrockv01.md.comcast.net
709/238 anon @ 20874 11th 10:38AM nrockv01.md.comcast.net
431/239 anon @ 20874 15th 11:17AM nrockv01.md.comcast.net
418/238 anon @ 20874 15th 12:21AM nrockv01.md.comcast.net
396/239 anon @ 20874 15th 12:12AM nrockv01.md.comcast.net | |
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Reddking
join:2001-01-16
Lancaster, PA | I am using the RV082 Linksys Cisco Dual WAN Router...
Believe me.. it's a GEM! Cable and DSL.. it's a dream! | |
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crashman0
join:2003-07-08
Reston, VA
| I am very intrigued by this topic.
i have verizon dsl right now, but I am 15,000+ feet from the CO and therefore capped at 768/128.
I like to game, and upload is important to host other players.
Cable internet is available, but I have directv, so cable internet can get expensive $67/month.
It would great if folks could post their experiences with these routers.
Could I get 2 DSL lines, and hook into router? giving me 1.5/256?
Seems like 2 DSL lines would be easier to convince than 2 cable lines. seems like the cable company would have a problem with 2 cable lines, but the house has multiple phone lines from the underground line.
thx. | |
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Big_D
Premium
join:2003-06-02
Augusta, GA
| Re: Dual Cable for home said by crashman0 :
Could I get 2 DSL lines, and hook into router? giving me 1.5/256?
As stated previously, you would not get double the speed by getting 2. The only way that would be possible is if the DSL company was willing to bond the 2 lines, which I highly doubt.
quote:
seems like the cable company would have a problem with 2 cable lines
There would be no need for 2 cable lines...just 2 modems. (Unless you don't have any free jacks and your signals are so poor that you cannot split an existing jack)
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| | jbjetta
Premium
join:2004-07-23
Laurel, MD
| Re: Dual Cable for home
First off before you go through all this trouble to get two cablem modems and try find a router that can DHCP and load balence your requests, have you tried talking to business sales about getting more then 3m/256? They have a business sales group and I would expect that they would offer something like this, all they do is peg a custom file to your modem and boom speeds change. | |
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| | | Kip patterson
Premium
join:2000-10-23
Columbus, OH
1 edit | Re: Dual Cable for home If you go with Comcast business service the boom you will hear is your wallet collapsing as all the money flies out of it!
It's pretty darn expensive. | |
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J D McDorce
Premium
join:2001-12-29
Westland, MI
| If Comcast's Workplace offerings are representative of what the business sales group has to offer over cable, it could certainly be less expensive (over the course of a year) for a residential customer to purchase a dual WAN router and pay for two standard (or even two more speed for $10) accounts. What's offered in my area (via »work.comcast.net) is 4000/384 for $95/month (one year contract) or 5000/512 for $160/month (one year contract). | |
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| | | | jbjetta
Premium
join:2004-07-23
Laurel, MD
| Re: Dual Cable for home
It depends on how well the dual wan can use both modems. If I can never get more then 3m on one download and I am looking for more speed from a single site download then it may be worth the money to continue with a high rate of service. That is all I am stating. | |
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indysz
Premium
join:2003-07-26
Valparaiso, IN
 ·Verizon Online DSL
| You need a router that supports load balancing. I cant remember the model number off hand but I know netopia makes a faily decent one.
Just get a comcast 4.0/384 for 52.95/mo
Verizon 1.5/384 for 29.95 month
5.5/768 = 82.90/mo
You'll probably see 5.0/700 out of that
- Alex
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Indy SZ
Network Admin.
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Loves comcast 4.1/379
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Dual Cable for home
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