Connecting a ADSL router to a wireless router. What am I doing wrong?

3

What is the correct way to do it? This are the steps I have taken:

  1. Disable DHCP in Wireless router
  2. Setup a fixed IP (192.168.1.2) and telling that the default Gateway is 192.168.1.1 (the ADSL router)
  3. Plugged the Ethernet cable from the ADSL router to the "Internet" port in the wireless router.

It does not work.

Eduardo Molteni

Posted 2010-03-04T21:13:22.460

Reputation: 1 728

Is the ADSL device a modem or a router? Your question text and the title seem to conflict. – squircle – 2010-03-04T21:24:02.737

In addition to what the purple pixel said above, name the model of the "model" (which I'm guessing could be "modem"/router) – Rook – 2010-03-04T21:31:13.160

Yes, thanks for pointing the error. Now fixed. – Eduardo Molteni – 2010-03-04T21:49:33.847

I'm trying to avoid bringing specifics models of routers to learn about the process, but I guess it is different in every case. Weird – Eduardo Molteni – 2010-03-04T21:51:04.030

Actuaally, it's rather similar in most cases. But while learning, it is better to view one specific example (model), than to go "the general route". – Rook – 2010-03-04T22:32:23.043

http://superuser.com/questions/104043/extend-network-by-connecting-a-wireless-router-to-a-wired-router/104056#104056 possible dupe BTW. The answer/answer is identical – Journeyman Geek – 2010-03-04T23:51:55.833

Answers

0

Tried again from zero and works right away (The magic of PCs :)

Things I did:

  1. Leave the IP of the Wireless router in automatic
  2. Change the internal IP to 192.168.5.1 (I think here was my mistake last time)
  3. Leave DHCP ON and starting with IPs 192.168.5.100
  4. Presto! All works like a charm in 5 minutes.

Thanks all for answers!

Eduardo Molteni

Posted 2010-03-04T21:13:22.460

Reputation: 1 728

no, this is wrong. you had the step 3 in your original instructions backwards. http://superuser.com/questions/116255/connecting-a-adsl-router-to-a-wireless-router-what-am-i-doing-wrong/116293#116293 has it right, you need to connect them lan-to-lan. This is why you disable the 2nd dhcp server first.

– user23307 – 2010-03-05T03:03:53.330

:confused: Maybe you are right, but this setup just worked (and I will no touch it) – Eduardo Molteni – 2010-03-05T13:34:08.017

2

Got a little complicated whilst writing this - 1 refers to your modem, 2 refers to your wireless router.

This is one thing I hate doing as it can change based on device manufacturer and features. Personally, if you can upgrade 1 and 2 and just have one device, you will be better off.

For a start, if your 2 actually supports this e.g. has an Ethernet WAN port instead of a smaller telephone line adapter, you may not even have to disable DHCP anywhere - simply make sure the 1 works (connect it up to one pc) and if it does, plug it in to to the 2, and then it should "just work" - if it doesn't, your 1 is more likely to be an actual router (just with one port).

so, if 1 is actually a router instead of a modem, I would recommend that you see if you can change the mode of 2 and basically disable all routing and change it to an access point, this will then do all the DHCP and everything else at 1 whilst just providing an access point to wired and wireless devices - by far the best way. (After changing this, you may have to first manually set the ip of 2, this will mean that all devices are pingable and accessible on your network and the easiest to manage.

William Hilsum

Posted 2010-03-04T21:13:22.460

Reputation: 111 572

I've guessed that it would just work, but spend 3+ hours yesterday trying to make it work. The thing that makes no sense is that some say to plug the cable to the standard (numbered) port of 2. I will try to make it an access point tonight – Eduardo Molteni – 2010-03-04T21:47:35.787

it makes no sense... but it works. Its something to do with vlans i suspect- that connector is a network segment on its own – Journeyman Geek – 2010-03-05T01:09:01.037

@The Journeyman geek, it is not vlans - it is simply subnets, routing tables, NAT etc... it is just the way the devices are designed to "route" information... Routers are designed for two (or more, model depending) networks - typically commercial ones have a built in modem and switch, but if you go back (quite a few now) years, when you didn't get so many "all in one" type devices, you really start to learn what features each device brings - and how they work from a deeper level (Hope this comment makes sense... very tired writing it!) – William Hilsum – 2010-03-05T01:38:33.913

2

step by step - you seem to have done some of this already, but this certainly works

  1. go to the wireless router setup and turn off its dhcp server and set up a fixed ip address to it.
  2. connect the wired router and the wireless router - lan connection to lan connection (as odd as it sounds)
  3. check if you can access the wireless router from a box connected to the wired router 4) if so test the wired connection, then the wireless.

This worked in a similar setup for me and others

Journeyman Geek

Posted 2010-03-04T21:13:22.460

Reputation: 119 122

2

milos

Posted 2010-03-04T21:13:22.460

Reputation: 21

0

It depends how your provider initially set this up and how you want to set it up.

The setup you allude to is where the ADSL modem is connecting to your provider as well as routing and taking care of DHCP, etc.

A preferred setup is where the ADSL modem simply handles connecting to your provider. Often this means the router has to be configured to do PPPoE, authenticating to the provider via the modem. The router can then handle DHCP, NAT, filtering, port forwarding, etc. Sometimes this setup requires setting the modem to some sort of pass through mode.

Post your exact device information for better help.

mindless.panda

Posted 2010-03-04T21:13:22.460

Reputation: 6 642

0

Your instructions are correct, but you'll also want to disable NAT on the modem.

You may be having an IP conflict. Did you release your DHCP IPs from your client machines before installing your wireless router? Maybe you assigned your wireless router a 192.168.x.x IP that was in use by another device.

goblinbox

Posted 2010-03-04T21:13:22.460

Reputation: 2 414

The instructions are wrong, step 3 should be to connect the 2 routers lan port to lan port, not lan port to internet port. – user23307 – 2010-03-05T03:04:53.623

0

Without knowing what devices you use: if one of them (preferably the wireless router) supports "bridging mode" then that device can be thought of as being some kind of "slave". The other device will then take care of assigning IP addresses and the routing; the "slave" will just take care of passing everything to that device. This will solve a lot of problems in one go (like "double-NAT" issues).

Unfortunately, the term "bridging" is used in many different meanings, like an Apple AirPort Express can act as a bridge in three different ways:

  • If you have an existing wired network, it can bridge this network to wireless clients. (This is what you want.)
  • If it is set up as a WDS remote or relay station, it can bridge the wireless network to wired clients.
  • If it is set up as a WDS remote or relay station, it can bridge the wireless network to wireless clients (or "wirelessly extend" the range of the network).

So: we need more details to tell you the name used in your situation (or maybe point you to duplicate questions here at Super User).

Arjan

Posted 2010-03-04T21:13:22.460

Reputation: 29 084

0

Connecting BSNL(ADSL) modem to wi fi Router(Netgear)...At First Configure your Modem with your PC/Laptop. After login with your User Name & Password( which has been given from your service provider),connect Internet. If it is O.K.,remove cable from modem and connect in your wi fi router, then login in your wi fi router(Cable modem)with User Name"admin" & Password- "admin or password". In internet page, just change to "internet IP Address from static Address to "Get Dynamically/Automatic", after that change "Domain Name Server" from "Use these DNS" to "Get Automatically from ISP". I have done these method and successful.

Samir saha Biswas

Posted 2010-03-04T21:13:22.460

Reputation: 1

Read over "Why do I need 50 reputation to comment" to ensure you understand how you can start commenting.

– Pimp Juice IT – 2017-10-14T20:34:50.267

0

  1. Make DSL Server the router and in the LAN setting make DHCP enabled
  2. Make the wireless "Bridge" instead of "Router" in WAN setting, and disable DHCP for its LAN settings

Ahmad

Posted 2010-03-04T21:13:22.460

Reputation: 155