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Questions tagged [adsl]

Asynchronous Digital Subscriber Line is a layer 1 networking protocol, typically used for last mile Internet access. It utilises standard telephone cabling and coexists with analogue telephones. An ADSL modem at the customer premises communicates with the DSLAM at the local exchange. ATM is usually used as the layer 2 protocol, with PPPoE or PPPoA used for authentication.

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Corrupted files when downloading with HTTP

With my UMTS connection most archives > 50 MB are corrupted when downloading them via HTTP. If I switch to HTTPS the problem is gone. The problem should not reside in my network, because I have an additional ADSL connection. When I switch to this…
Wotim
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Juniper SSG20 Additional subnet on adsl interface

I've configured a Juniper SSG20 to have some clients natted to the internet with the main ip address (X.X.27.90/30) of my IPoA ADSL connection but i have also some servers i wish to connect with a public ip address (coming from another subnet…
Francesco
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How and why is PPPoE possible over a DSL line?

Typically (at least here in the UK), the authentication method on a DSL line is PPPoA. This makes sense, based on my understanding that DSL usually uses ATM mode, meaning ATM/AAL5 sits immediately above the low level DSL protocol in the stack. This…
dbr
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Looking for a straightforward linux router setup

I'm looking to replace a default DSL router/modem with a "dummy modem" + "linux-based router" combo. I'm getting rid of the ZOOM ADSL modem because of its lack of capabilities. For instance, I can't forward external ports to different internal…
humble_coder
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Port mirroring/monitoring the DSL/ATM interface on a Cisco 877/877W?

Is it possible to mirror/monitor the DSL interface (atm/dialer interfaces) to one of the fastethernet ports on this device? Running software: Cisco IOS Software, C870 Software (C870-ADVIPSERVICESK9-M), Version 12.4(11)XJ3, RELEASE SOFTWARE (fc1)
wg
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Connect from firewall to Cisco 877 in Bridged mode

I have a Cisco 877 in bridged mode acting as an ADSL2 modem only. My firewall is doing PPPOE and the internet works great. What I would like to do is give vlan1 on the Cisco 877 an IP address e.g. 10.10.10.1/24 and then give my firewall a secondary…
user158798
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Connect ADSL modem SMC7904WBRA-N to CISCO RV082

I have a SMC7904WBRA-N ADSL modem/router that connects to the internet with a static IP given by the provider. I've received a RV082 to create a VPN connection which is having problems to connect to the remote VPN Server. After many tries we deduced…
Cy.
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ADSL throughput loss from Reed-Solomon encoding

I'm reading about ADSL starting here and I am confused by how the Reed-Solomon encoding for ECC is limiting the available transfer rate, as much as it does (nearly half). This pdf on the same subject contains the following; A maximum of 255…
jwbensley
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ADSL2+ vs Fibre

We operate in an office building very close to the Sydney CBD and as a result our office currently uses a direct fibre connection at the cost of $1000/month for 2Mb/2Mb (yes, I realise how stupidly expensive that is, but that's how much fibre costs…
Mark Henderson
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Exchange 2007 Email Error 451 4.7.0 Timeout waiting for client input

Our SBS 2008 server with Exchange 2007 started rejecting some (most) emails starting about 3 or 4 days ago. The return failure message looks something like this: The error that the other server returned was: 451 451 4.7.0 Timeout waiting for client…
HK1
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Cisco 678 Will Not Work using PPPoE

I am attempting to configure a Cisco 678 because I am totally sick on my Actiontec. However, I am running into some problems. It seems as though the Cisco is able to train the line, but I am unable to ping out. It is almost like I am not correctly…
Brian Stinar
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How do I configure a Cisco PIX 501 and AT&T DSL w/5 Static IP Addresses + PPPoE?

I'm considering upgrading to a business plan for my home office with 5 static IP addresses. Currently I have the base, 1.5 Mbps down DSL package (makes me cry). I have my PIX 501 setup with PPPoE and from what I understand, AT&T still forces you…
Gromer
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Win 7 Network Configuration Issues

I have US ROBOTICS ADS L 4 PORT router and I use it to connect to the internet using my desktop. I bought a new Toshiba laptop. So I connected it to router using the same wire disconnecting the desktop. But the problem is I cant go to internet. But…
Jayanga Kaushalya
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How do I bond ADSL lines for VOIP?

We're using G711a as a codec, and I wanted to bond ADSL lines to give me the maximum possible upstream. I know that there can be issues of packet re-ordering etc; what is the 'right' way to do this? (other than getting a leased line).
chrism2671
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Linux gateway forwarding issue

how do I enable packet forwarding for an ethernet dsl modem? Must this be done with iptables?
Bill Gray
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