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 ...

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5
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3answers
892 views

Two ADSL modems on one LAN

At the moment we have two buildings each with their own LAN's and each with their own internet connection through an ADSL modem, using their own seperate telephone line. Next week we are going to ...
4
votes
5answers
1k views

Piggyback network router

I have a pretty standard 4 port ASDL router. I am running out of ports so wondering if I can piggback the spare 4 port router I have or if I need to purchase a new 8/16 port router. If it can be done, ...
3
votes
7answers
5k views

Can Linux function as its own ADSL modem?

I'm not sure specifically the differences between a normal Dial-up modem and an ADSL one. Here is my problem: I recently found an old box in the basement, which I installed Ubuntu (linux) on. I have ...
3
votes
4answers
1k views

Leased Line, ISDN, Bonded ADSL or bunch of ADSL lines for internet connection?

We're looking at moving our office shortly and we'll need to get our own internet connection (we currently have a 7Mbps LAN connection in our current building). We're based in the UK (centre of ...
3
votes
6answers
2k views

Tutorial: from registered domain to running mail server on ADSL connection?

Does anyone know of a tutorial that takes me from having registered a domain name (with eNom through Google) to a running IMAP mail server (preferably based on Ubuntu) connected to the internet via a ...
3
votes
1answer
73 views

EFM vs Bonded ADSL [closed]

We used good old SDSL and load balanced ADSL in the past, and when the recession came and our office shrank considerably we switched to domestic ADSL Max line (from Be Broadband, which was very good) ...
3
votes
1answer
3k views

Configure Cisco 877 as bridge between Internet and Cisco ASA 5505

ISP ADSL ---- Cisco 877 Router ---- Cisco ASA 5505 I have the above connection. I'd like to avoid using NAT on the Cisco 837 router, and just put the ASA directly on the Internet. However, I have ...
3
votes
1answer
372 views

Is wiring ADSL and Phone lines to a patch panel ok?

Is it OK to wire an POTS line + ADSL line directly into a patch panel? I guess I'm wondering as well why do regular phone jacks have some passive electronic parts inside them. Since wiring it ...
2
votes
3answers
1k views

VLANs using one managed switch or link router to unmanaged switches?

I'm the resident IT guy in an office with about 20 workers, amongst 3 separate companies who sublet an office. We are wired with 24 ethernet ports dotted around the offices that all lead to a patch ...
2
votes
5answers
1k views

Device to manage 2 dsl connections - failover, load balancing and bonding

I'm setting up an offsite DR facility on a budget. The office has 2 ADSL lines coming in to identical router/modem devices. I'm looking for a cost effective (cheap) way of joining the two connections ...
2
votes
5answers
2k views

Link aggregation with DSL and Ethernet, and different ISP's?

We're a webdev company that has outgrown its ADSL bandwidth. It's currently 4/1 Mbit/s and due to distance we can't simply get faster DSL, whether ADSL or SDSL. Stacking multiple DSL connections is ...
2
votes
2answers
248 views

Is it possible to use two ADSL cables together, jointed?

Hey there. I have two different ADSL lines, and I'd like to use them together in order to get double speed and bandwith. Is it possible? Is it something a software or hardware? How can I do it? ...
2
votes
2answers
159 views

Can I put wireless activity on a separate network on the one router?

We have a foreign delegation coming in next week. Some of them will be IT-savvy. We don't want them wandering through our network. We have a wired network and a wireless network both going through the ...
2
votes
2answers
185 views

Use 1 Linux box with 2 NICs to dial-up to 2 separate ADSL dial-up accounts?

I'm planning to build a Linux box with 2 virtual instances of Windows 2003 server (VPS#1 & VPS#2). I want each Win2003 instance to access its own ADSL dialup account and have its own public IP and ...
2
votes
2answers
172 views

What is the point of PPPoE? [closed]

I am trying to expand my knowledge of networking beyond the basics. I have started reading about PPP, and how it is used in DSL modems with PPPoE and PPPoA. My first impression of PPP was "well that ...
2
votes
2answers
670 views

MTU, DSL router and stalling TCP

I am discovering stalling TCP connection problem. The problem arises when I try to scp stuff from remote system from my home network. My home network is connected to internet via PPPoE (ADSL+) and ...
2
votes
3answers
398 views

Poor upload/download speed on 2 x ADSL lines into a Cisco 2621XM

Sorry never been on this site before so I apologise if not the right section or even forum. I have users complaining of very slow internetn connectivity on site and have checked with our ISP who have ...
1
vote
3answers
456 views

What is the maximum speed of ADSL?

As wikipedia says the max speed of ADSL is 24.0 Mbit/s. However here it writes that Japan provides ADSL service with speed 50 Mbit/s.
1
vote
5answers
919 views

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 ...
1
vote
4answers
230 views

Linux gateway forwarding issue

how do I enable packet forwarding for an ethernet dsl modem? Must this be done with iptables?
1
vote
4answers
455 views

ADSL to T1, Is it worth it for us?

The company I work for has roughly 45-55 simultaneous users (local and remote/VPN) logged in at a given time. We currently subscribe to an ADSL connection but we have been experiencing slower ...
1
vote
3answers
5k views

Trouble setting up a DD-WRT router with a DSL gateway

Our office is fairly small. We previously had a 2wire gateway that came when we ordered our DSL connection. I recently decided to upgrade to a router that could support DD-WRT since the 2wire was very ...
1
vote
2answers
257 views

What DNS servers to use with multiple connections

I have a complex configuration of multiple ADSL connections from multiple ISPs being load balanced by a Draytek Vigor 3300V+ My question is what DNS settings should I use. Should I use the ISP ...
1
vote
2answers
1k views

How can I team or balance two DSL connections? [duplicate]

Possible Duplicate: Is there a sensible way of ‘teaming’ two ADSL connections? WARNING: I am NOT a networking professional (obviously, see below) but I am a programmer and have a decent ...
1
vote
5answers
612 views

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? ...
1
vote
5answers
1k views

Is there a sensible way of 'teaming' two ADSL connections?

I work in an office complex that has two seperate ADSL connections, which they use to provide two seperate networks (actually both the ADSL routers go into a Cisco managed switch with two VLANs, one ...
1
vote
2answers
551 views

Disable routing between ports in ADSL router

Does anyone know an ADSL router that allows to disable routing between switch ports? For example: - part of network connected to port 1 on router can access the Internet but cannot see the part of ...
1
vote
1answer
2k views

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 ...
1
vote
3answers
647 views

ADSL modem/router for varied desktop/server network topology

I'm currently running a hybrid home/office network comprising of several iPhones, laptops, and desktops (Windows, Mac), and gaming consoles - an average of 10+ devices connected at once. Vitally, I ...
1
vote
2answers
4k views

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 ...
1
vote
1answer
103 views

Win 7 Network Configuration Issues [closed]

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 ...
1
vote
2answers
110 views

Components needed for a VPN

first of all, I asked this question on SuperUser.com, but no one there could help me. Well, we eventually got our Mac Mini Server. We now want to set up a small Remote Access VPN using this Mac Mini ...
1
vote
1answer
824 views

Configuring NAT and static IP on Cisco 877W

I'm having trouble setting up a static IP reservation on a network. What I want to do is assign IP 192.168.1.105 to MAC address 00:21:5d:2f:58:04 and then port forward 35394 to it. If it helps, ...
1
vote
1answer
2k views

Linksys WRT160NL & ADSL modem/router - WAN port

I have a router/modem at ip 192.168.1.254. I also have a linksys router connected to the modem through the LAN port. So right now I have this: 192.168.1.254 <----> 192.168.1.1 <----> PCs ...
1
vote
1answer
1k views

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 ...
1
vote
0answers
61 views

Is it normal for uploads on ADSL to make the connection unusable (> 4000ms latency)? [migrated]

I have an ongoing saga with my internet connection; where the latency periodically goes through the roof. In most cases, this seems to coincide with something uploading data. I'm not having a lot of ...
1
vote
1answer
120 views

Web ERP slow response when somebody upload files in an ADSL connected office

We have developed, and deployed, a web ERP for various small companies (less 30 users each one). Those who have cable connection don't experience any problems related with slow connections, but one is ...
1
vote
1answer
386 views

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. ...
1
vote
1answer
273 views

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 ...
1
vote
0answers
237 views

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 ...
1
vote
0answers
271 views

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 ...
0
votes
4answers
910 views

how to control the bandwidth in LAN with no server?

i have an ADSL line with a router attached to it. the router is attached with a switch. and with this switch, i have 3 PC connected each sharing the internet connection. i there any way to distribute ...
0
votes
1answer
345 views

What is a “Latency Outage”? [closed]

I'm one of many customers of Windstream, the only internet provider in my area, and just after having hit the 1-year mark of being a customer, my 10M internet connection became about a 512k ...
0
votes
7answers
894 views

ADSL with static IP address?

I would like to know which ISPs offer DSL/ADSL service with static ip address? It doesn't matter if it is for home or business users, if you know some just name it. Thanks in advance
0
votes
2answers
530 views

Annex-A vs Annex-B ADSL splitters

While trying to improve our Adsl connection, I found that we use a splitter that is from an unknown ventor and have no clue whether is for AnnexA (PSTN) or AnnexB (ISDN) line. Is it possible that ...
0
votes
2answers
191 views

DSL :: Connection top speed is ok, but acceleration is low

My 2048 Kb/S ADSL connection downloads at the expected download speed 220 KB/s , but it takes too long to get to that speed, in other words the top speed is fine but the acceleration is terrible. This ...
0
votes
2answers
685 views

Disable internet access for a single computer

In our network, we are connected to the outside world with an ADSL modem. A (wireless) router is connected to this ADSL modem, which provides wireless access to 3 laptops, and a USB connection to a ...
0
votes
3answers
261 views

Why does a power trip “disable” internet connectivity?

At home, we've set up a server with Windows Server 2008 R2. This server provides DNS, DHCP and a number of other services for the network. We have a Cisco Router (not sure about model) that manages ...
0
votes
2answers
158 views

Is the WAN IP of an ADSL modem likely to remain the same if it is not rebooted?

Is the WAN IP of an ADSL modem likely to remain the same if it is not rebooted? Do ISPs change the WAN IP of an ADSL connection while in session (ie. prior to reboot) ?
0
votes
1answer
664 views

DHCP requests from wlan client not reaching server

I have a dhcp (and dns) server running on a centos/linux pc, which is the only dhcp server on my network. I have two wireless routers - a Netgear DG834G, and a Netgear DGND3700. The DGND3700 is also ...