An Internet service provider (ISP) is a company that provides access to the Internet. Access ISPs connect customers to the Internet using copper, wireless or fiber connections.

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What prevents my ISP from assigning me a dynamic IPv4 address and static IPv6 address(es)? [closed]

Till now I never heard of an Internet Service Provider anywhere on the world, that assigns static IPv6 addresses besides the one dynamic IPv4 address, to private customers. Is there a technical ...
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122 views

Incoming server mail (MDA) behind ISP => different reverse DNS: How bad?

I would like to operate an incoming-only MDA (Mail Delivery Agent) server mail for domain xyz.com on an Ubuntu server hosted behind my ISP (Internet service provider) Comcast. The objective is to ...
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226 views

monitoring ISP bandwidth data

On Windows/Linux, what would be a way to run a sample measurement of the bandwidth that I have available? I need to run a measurement at periodic intervals. There are many website which will give you ...
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3answers
7k views

Can I switch my modem over to any other coaxial entry point in the house?

Can I switch my modem over to any other coaxial entry point in the house? Or does each jack have to be set up by an engineer sent over by my ISP. I'm a bit afraid to just try it, in case connecting ...
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3answers
633 views

ISP tricks DNS?

Running "nslookup google.com 8.8.8.8" yields IPs of my ISP (as Non-authoritative answer). I think this started occurring recently. Probably they are making some bullshit cache or something, as nearest ...
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50 views

Emails not dropping in webmail on one ISP connection, but dropping on another, what could cause?

I have a peculiar situation. My ISP provides internet for a client. Client's mail is hosted on some web host (normal webmail, commercial host). Now when client is on my ISP, they are unable to ...
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2answers
110 views

What are the options for a person or business that needs high bandwidth internet service?

What are the options for a business that needs high bandwidth internet service? For example, how would a large hotel or medium sized business with a few hundred employees get enough bandwidth to ...
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469 views

Very high latency with Verizon DSL

At any time in a given day, my ping could be anywhere from 60ms (already too high) to over 1000ms. I've contacted Verizon support numerous times, but it doesn't seem anyone in the tech support center ...
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390 views

How is LAN diagram/schematic where my cable modem is connected to?

I'm not an IT guy, i'm just home user which know a bit about networking. I'm trying to learn how the connection (LAN) is built in outer side of my home LAN. Here's the diagram : PC ...
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4answers
1k views

Does an ISP have admin access to your modem/router?

I use a Zyxel P-660HN-T1A modem/residential gateway to connect to my home ADSL subscription. I called my ISP today to inquire about upgrading to a faster broadband package. For some reason, my call ...
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789 views

How does VPN secure me from my ISP eavesdropping on me? [duplicate]

I'm trying to understand the whole VPN thing and how it can protect me, but it still remains very vague to me. If I connect to a VPN, all data goes through my ISP first, right? What keeps them from ...
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67 views

Cannot Connect via SFTP When I Travel or am on Another ISP's Connection

I use SFTP to upload our website to our server with InMotion Hosting. It works fine when I am home and use our ISP (BellSouth.Net - Now AT&T. It also works fine on 1 of our Philippine ISP ...
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2k views

Port 53 seems to be blocked by ISP - is there a way to override this?

My ISP seems to be blocking Port 53 if it is not connecting to one of its DNS servers. I was able to prove this through nslookup tests. Here are my tests: C:\Users\admin>nslookup google.com ...
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269 views

pfsense more than 2 isp provider

is it possible to bridge more than 2 isp provider using pfsense? what router or device can bridge 2 or more isp providers in a router? i am planning to bridge at lease 5 isp providers to create a very ...
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2answers
313 views

How does Windows know information about a connection's lease time?

How can Windows "see" information of an ethernet adapter's lease (like lease obtained/expires), when that lease comes from the ISP, but when there's a router in between? I've assumed that lease ...
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108 views

Why some internet providers use proxy for internet connection? [closed]

Some ISPs and organizations (which are big enough to provide internet over the system like an ISP) use proxy for providing the service to their clients. Then, each user need to set the target proxy ...
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113 views

ISP, broken routes and my options

My ISP has serious routing problem. First, I've confirmed that my Internet connection is indeed working: rr-@burza:~(1:3) $ ping -c 4 -W 1 status.github.com PING octostatus-production.github.com ...
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410 views

Great Internet speeds, but downloads and streaming halts

For about 5 days now, our Internet connection has been doing something unusual. These are the kinds of symptoms that usually indicate a bad network card, or something wobbly with a wi-fi router but ...
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84 views

Would it ever make sense to have a much lower upload speed than download speed in a fiber optic network?

We have a fiber connection from CenturyLink--one of their first. Our download speed is 10 Mbps, but upload is usually less than 1 Mbps. My understanding is that fiber is fundamentally different than ...
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3answers
1k views

Is a cable modem registered to a CMTS or the entire ISP?

I am curious if I were to move, do you have to tell your ISP, in this case my cable company, that I am moving? Is the cable modem MAC restricted to a certain CMTS, or could I use any CMTS belonging ...
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1answer
371 views

How does a modem know which ISP to connect to?

I am terminating my contraçt with my old ISP, however, because I've already paid my account till the end of the month, this connection is still active. I have also signed up with a new ISP who mailed ...
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2answers
1k views

How to circumvent a private WAN IP address?

I just signed up with a new ISP and I got a dynamic private-range (172) IP as WAN address on my firewall/router, so I can't do any port forwarding. They say that to do port forwarding I must buy a ...
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1k views

My ISP locked me out of my router

I did a quick search for this and didn't find results, so I'm thinking its just as bizarre as I thought. MY internet went down last night, and after 20 minutes of unstable it was back. But out of ...
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85 views

Mulitple ISP IP's pointing to one router

My ISP is providing me with two dynamic and one static IP. My question is: How is it possible to have three IP's, but i only have one router? Or is it that i can only have a static or a dynamic ip ...
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354 views

I want to send email from my Debian server but My ISP block port 25

I have put private server on Debian, I would like to be able to send mail but port 25 is blocked by my ISP. I checked it by opening a telnet connection to another mail server. The good news is that I ...
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111 views

How can I record additional data with pings, such as IP and ISP info?

I am running after my ISP for last 15 days for unacceptable slow internet speed without any help. I was using SpeedTest.net and testmy.net for testing the speed. At times SpeedTest fails to load due ...
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71 views

Dynamic DNS checking site?

Basically, I use to have a site bookmarked that would create a unique subdomain and forward you there, then, when you do a DNS lookup on that subdomain it would mark the DNS IP down and give it to you ...
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1k views

“Shift+R improves the quality of this image. Shift+A improves the quality of all images on this page.”

When surfing and hovering over any image on a page I get a box: "Shift+R improves the quality of this image. Shift+A improves the quality of all images on this page." This happens on every image on ...
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2answers
695 views

Router speed not matching my ISP speed

My ISP recently upgraded me to 150 mbps, I can only get close to this if I wire directly from the modem to my computer. If I wire through my router it maxes at 55, the router model is Linksys E1550, ...
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23 views

Qualifying (and/or Quantifying) Internet Connectivity Problems

I'm having intermittent problems with my internet, and would like to be able to give my provider enough information to help them diagnose the problem. Is there a free tool I can run on my PC to track ...
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5answers
15k views

Tor Browser and how it affects torrents

I have recently received a message on my computer stating that my Internet Service Provider has been monitoring my traffic and have recorded me downloading several torrents that they have marked as ...
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430 views

Two ethernet connects how can I set the default one?

I have Two ethernet cards / Connections How can I tell windows to set Eth1 as default so web,steaming all the normal stuff uses this connection? I have set bittorrent up correctly to use the other ...
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76 views

Bittorrent and ISP

Quick question..I switched my ISP yesterday and I immediately noticed that my torrent downloads are considerably faster now. Is it possible torrent downloads were limited by my previous ISP?
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189 views

DHCP Renew on FW restores Internet Connection - why?

Home network, Cisco ASA 5505 9.0(1), Windows Server 2008 R2 (actually SBS 2011), various Mac, Windows and embedded clients. ISP is Rochester, NY Road Runner. Often (2-3x per day) my embedded devices ...
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1k views

Host server at home behind ISP NAT using STUN

I'm hosting my own Linux server at home, which I will be using as a VPN server and web hosting if possible, problem is that I'm behind my ISP's NAT which means that I'm unable to connect to my server ...
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304 views

Netgear DG834Gv3 ADSL router dropping Rackspace VPN connection intermittently

I have a Netgear DG834G v3 ADSL router which I have had since early-2007. When I work from home I connect to office networks on a Win7 machine via a Rackspace-provided VPN using Cisco System VPN ...
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440 views

determine connections limit enforced by my ISP

I know my new ISP is enforcing a lot of different limitations. They refuse to say what are the limits. To determine bandwidth I can use sites like http://www.voiptest.org/ (BTW it shows me ~15% of ...
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99 views

Unable to reach remote server from new ISP

From my previous Internet Service Provider I was able to reach (ping/trace/remote desktop) my remote server (windows 2003). Since I changed ISP I cant reach it. This is a tracert to the server from ...
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4answers
3k views

How to prevent my ISP from putting every website in a frame?

My ISP has a bad habit of putting every page I visit into an iframe so they can overlay it with their commercials etc.. (I'm guessing they are using a transparent proxy to do it) Is there an add-on ...
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45 views

DSL speeds varying across different protocols

For a couple of weeks now I've been experiencing a very odd issue that I've never come across before and I've exhausted all possible solutions I'm aware of. Let me detail my problem further. ...
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3k views

Is it possible to find out which upstream DNS server my router is querying? (just using dns tools)

Ok, here is the setup: I have a local router which advertises itself as the DNS server over DHCP. The DNS resolver on the router just forwards the requests to the ISP nameservers and caches the reply. ...
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1answer
107 views

Is my MAC monitored? [duplicate]

Possible Duplicate: Is your MAC address revealed when you hit up a website? Is the MAC address traceable to the ISP? Or any website? If so can we hide the MAC address from a second person? ...
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1answer
554 views

VOIP (Skype, Lync) 'stutters' with my ISP. How can I prove it?

When I am on VOIP calls (Skype or Lync) most of the time the calls suffer quality issues where the person on the other end cuts out. 4 perfect seconds, then 1 to 1/2 a second of what the other person ...
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1answer
8k views

Accurately determine data usage on a metered Internet connection [duplicate]

Possible Duplicate: Software to report internet traffic for home user On my profile page of my ISP, I tracked that I used 100+ MB of data within 60 minutes of usage. During standalone ...
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1answer
633 views

Why does my privoxy log show lots of requests to updateservice.sonic.com/Ping.asp?

I installed privoxy as a transparent proxy on a gateway machine, and I have Sonic for an ISP. I'm seeing a lot of requests to http://updateservice.sonic.com/Ping.asp when I'm browsing random pages. ...
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111 views

How do i setup this ip for two location which will be using a same gateway as different subnet?

I have two public IP, they have not given me any subnetmask and gateway for those two. But in seperate they have given me one subnet mask/gateway as below: 217.91.227.x 217.91.170.x To be use ...
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1k views

How can I tell if my internet speed issues are coming from my wireless router or from my ISP?

For the past couple of months I've been having major internet connection stability issues with my ISP (Charter). I have their 100Mbps package, but most of the time the speeds are all over the place. ...
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142 views

DynDNS configuration - second to last packet is timed out during tracert

I have a NAS in a separate location which I connect into through a DynDNS domain I got for it. When I tracert to that DynDNS name, the following comes up: 1 3 ms 2 ms <1 ms ...
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134 views

Will a router's bandwidth override what the ISP says you have?

I'm networking illiterate, and I wish to acquire a bit more information about networking. Say, for example, I got a package from Verizon that said your connection will be ~20 mb/s, but I got a router ...
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2answers
5k views

Forcing a Modem/Router combo to pass it's WAN IP to a dedicated router

I wish to use an ASUS RT-N56U router router with my ISP provided Motorola SBG6580. My goal is to disable the routing capabilities of the modem/router combo and use my Router as the Gateway, DNS, ...