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  #1  
Old 11th August 2012, 11:39 PM
glennzo Online
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Upgraded the cable modem today

Got the newest Comcast cable modem today. DOCSIS 3.0, whatever that is. This after my wife changed our plan and got something called "Blast". I think it includes 50MB down but I'm not sure. Anyhow, I set up the modem and had no internet, but when I tried a web page I was redirected to a setup page for this new modem. Went through the painless steps and was up and runnig in no time. Here's the thing though. All the ip addresses are 10.x.x.x. While this works well I'd prefer a 192.x.x.x scheme. It appears that I can change this in the modem setup pages but I'm hesitant. I assume I need to be hard wired to the modem for starters. Any thoughts on this? Any reason to get away from the 10.x.x.x scheme?

Yeah, I know, I can probably get this info from Comcast's web site.
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  #2  
Old 11th August 2012, 11:51 PM
Dan Offline
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Re: Upgrade the cable modem today

You've got a router between your network and the modem?

*



*(This is no longer completely accurate, I've since run CAT5e to the Entertainment Center.)
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  #3  
Old 12th August 2012, 12:35 AM
glennzo Online
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Re: Upgrade the cable modem today

The new modem is a wireless router also. We can retire the WRT54G now.
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  #4  
Old 12th August 2012, 02:20 AM
stevea Offline
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Re: Upgrade the cable modem today

May or may not requires a hardwire to admin router. If not then be SURE to use a serious passwd.

If you change the LAN IP range then you certainly need to reset the router AND reconnect for a new dhcp session.

The wrt54 can still forward packets to the Comcast unit IF the slower BG speed is acceptable. Sometimes means a better signal on the fa\r side of the house.

---------- Post added at 09:20 PM ---------- Previous post was at 09:18 PM ----------

Curious about the price if you don't mind.
My Slime-Warner ISP wants $105 per month for 50Mbit down & 5Mbit up.
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  #5  
Old 12th August 2012, 10:15 AM
glennzo Online
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Re: Upgrade the cable modem today

We're paying $159 for Internet, TV and phone. With taxes and fees it's $179. I'm not happy. And to boot, this blast thing seems no faster than whatever I had previously. Took almost an hour to download the Fedora 17 install DVD iso yesterday afternoon. Did that as a speed test and it proved to be pretty much the same as it always was.

PHP Code:
speakeasy.net/speedtest last result
New York server:
Download Speed45083 kbps (5635.4 KB/sec transfer rate)
Upload Speed10881 kbps (1360.1 KB/sec transfer rate)

Seattle server
Download Speed
6314 kbps (789.3 KB/sec transfer rate)
Upload Speed2882 kbps (360.3 KB/sec transfer rate)

LA server
Download Speed
44194 kbps (5524.3 KB/sec transfer rate)
Upload Speed4469 kbps (558.6 KB/sec transfer rate)

Atlanta server
Download Speed
14033 kbps (1754.1 KB/sec transfer rate)
Upload Speed9886 kbps (1235.8 KB/sec transfer rate
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  #6  
Old 12th August 2012, 01:43 PM
Dan Offline
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Re: Upgrade the cable modem today

<....>

Ouch!


And I though I was getting hosed at ~$50.00! (Just internet @ 15mb DL and local stations ... if I bothered to hook the TV up.)
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  #7  
Old 12th August 2012, 03:02 PM
stevea Offline
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Re: Upgrade the cable modem today

Quote:
Originally Posted by glennzo View Post
We're paying $159 for Internet, TV and phone. With taxes and fees it's $179. I'm not happy. And to boot, this blast thing seems no faster than whatever I had previously. Took almost an hour to download the Fedora 17 install DVD iso yesterday afternoon. Did that as a speed test and it proved to be pretty much the same as it always was.

I get a big bail of "not happy" with Time-Warner every month. If there was an alternative any faster than morse code I'd switch.

Still ....
Quote:
New York server:
Download Speed: 45083 kbps (5635.4 KB/sec transfer rate)
...
LA server
Download Speed: 44194 kbps (5524.3 KB/sec transfer rate)
That looks like 44-45Mbit/sec to me.
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  #8  
Old 12th August 2012, 03:28 PM
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Re: Upgrade the cable modem today

Hello glennzo

I've got the best I can get for my locality which is "up to" 8Mbs which translates into a real transfer rate of some 6 or 700KB/sec although it can be much slower depending on who I am downloading from.

I reckon to download 1GB in about 45 minutes or so. In fact I've just started a download of Fedora 17 XFCE (670MB) and it reckons to be finished in just over 20 minutes.

Given the speeds your test reckons it's capable of you must be running into some other restriction somewhere.
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  #9  
Old 13th August 2012, 12:10 AM
glennzo Online
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Re: Upgrade the cable modem today

Quote:
Originally Posted by bbfuller View Post
Given the speeds your test reckons it's capable of you must be running into some other restriction somewhere.
Yeah. I'd say something amiss somewhere.
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  #10  
Old 13th August 2012, 12:21 AM
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Re: Upgrade the cable modem today

Hello glennzo,

Of course, it could just be that the particular Fedora mirror that you used restricts download speeds. Never having been able to download faster than 750KB/s I don't have any experience of what is possible with a faster connection.

Your headline rate is some 8 times faster than mine though.........

I assume you were doing a direct download? Over here, some ISP's throttle some services some of the time. I'm thinking about bittorrent in this case.
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  #11  
Old 13th August 2012, 02:11 AM
jlpierce Offline
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Re: Upgrade the cable modem today

Speakeasy.net tests for my insightbb connection, guess I am going to have to call them again and complain. We are on a 30 meg plan and this is my results.

New York Server:
Download Speed: 5870 kbps (733.8 KB/sec transfer rate)
Upload Speed: 1337 kbps (167.1 KB/sec transfer rate)

Seatle Server:
Download Speed: 7904 kbps (988 KB/sec transfer rate)
Upload Speed: 1298 kbps (162.3 KB/sec transfer rate)

LA Server:
Download Speed: 6877 kbps (859.6 KB/sec transfer rate)
Upload Speed: 1274 kbps (159.3 KB/sec transfer rate)

Atlanta Server:
Download Speed: 8292 kbps (1036.5 KB/sec transfer rate)
Upload Speed: 1357 kbps (169.6 KB/sec transfer rate)
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  #12  
Old 13th August 2012, 08:30 AM
bbfuller Offline
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Re: Upgrade the cable modem today

Certainly looks like you are not getting what you are paying for.

I've just run your Speakeasy.net site on my maximum 8MB ADSL telephone line connection from here in the UK to your New York server. This is the result:

Download Speed: 6924 kbps (865.5 KB/sec transfer rate)
Upload Speed: 372 kbps (46.5 KB/sec transfer rate)

and San Francisco:

Download Speed: 6908 kbps (863.5 KB/sec transfer rate)
Upload Speed: 325 kbps (40.6 KB/sec transfer rate)
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  #13  
Old 13th August 2012, 08:43 AM
glennzo Online
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Re: Upgrade the cable modem today

Quote:
Originally Posted by bbfuller View Post
Hello glennzo,

Of course, it could just be that the particular Fedora mirror that you used restricts download speeds. Never having been able to download faster than 750KB/s I don't have any experience of what is possible with a faster connection.

Your headline rate is some 8 times faster than mine though.........

I assume you were doing a direct download? Over here, some ISP's throttle some services some of the time. I'm thinking about bittorrent in this case.
The download was done with wget to a specific mirror. Maybe I'll try somehting else. Edit: 11 minutes with Transmission / Bittorrent for the i386 DVD.

What about the 10.x.x.x address scheme. Isn't that unusual?
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  #14  
Old 13th August 2012, 10:38 AM
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Re: Upgrade the cable modem today

Hello glennzo

There are three ranges of address reserved for private networks, as opposed to addresses that might be expected to appear out there in the wilds of the internet.

Class A: 10. 0.0.0 - 10.255.255.255 | 10. 0.0.0/8
Class B: 172.16.0.0 - 172. 31.255.255 | 172. 16.0.0/12
Class C: 192.168.0.0 - 192.168.255.255 | 192.168.0.0/16

Most home networking kit seems to default to class C, Class B is what a Windows machine defaults to if there are no other instructions. I've always heard that Class A is aimed at larger organisational use.

However, the main point is that those addresses appear nowhere on the internet and are therefore available for use behind a router.

I've occasionally used the Class A ranges here when I wanted to have a completely separate network and it doesn't make any difference.

Incidentally, my broadband is telephone line based and therefore very dependent on distance from the telephone exchange.

My only experience of cable is of a friend who has cable in a nearby town.

His provider recently advertised a free upgrade for all their customers from 10MB to 20MB.

We ran speedtest software on his connection before and after the upgrade and noticed marginal, or no, improvement.

The providers response was that he was on their old cable network and the higher speeds were only available to those who were on modern segments of their network.

I think the moral of the story is that even with cable you may not get the full advertised rate.

Not having much experience of Cable DSL maybe you can enlighten me. Does speed tend to drop off in any case with distance from the providers equipment?
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Old 13th August 2012, 10:58 AM
glennzo Online
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Re: Upgrade the cable modem today

Quote:
Originally Posted by bbfuller View Post
Not having much experience of Cable DSL maybe you can enlighten me. Does speed tend to drop off in any case with distance from the providers equipment?
I wish I could but I really have no idea. I think one of the biggest factors as far as cable speed is concerned is how many active users are on your particular branch. If there are many users you may see a degradation in your speed. If there aren't many then speeds should be close to advertised. At least that's what I've read.

I just did SpeakEasy again, chosing Washington DC (from Boston) and got 86kbps down. This is the fastest I've seen so far. The downoad of the F17 i386 DVD using bittorrent took about 20 minutes. That is a lot faster than the same download using wget. (I think I already posted that info).
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