Solved

connection ADSL modem with TP-Link router

Posted on 2007-11-14
6
4,431 Views
Last Modified: 2013-12-19
I have 2 PC's with static IP adresses connected to tp link router TL-R402M. Router address is 192.168.1.1, and PC's have 192.168.1.51 and 192.168.1.52. This all worked well.

Now I have and ADSL connection, and would like both PCs to have internet connection. For the sake of clearance I will call ADSL modem/router just a modem, altough it has routing capabilities. Modem has 192.168.1.1 ip address also. To test the connection, I have done the following:

I connected only one PC to modem, turned DHCP off on modem and set LAN range to accept my PC static IP - and internet works ok.

Now, since modem and router have same IP, I have changed router IP to 192.168.1.2 and now two PC's can connect to router again, but cant ping modem. What do I need to set on these two devices (modem and router), so they can work together. What settings should be made for best results? I suspect one should be set in pure bridge mode, but dont know how, and dont know if it is the right/best way. Should some settings be done on router WAN settings - now it is set to receive dynamic IP address?

I have connected modem to WAN port of the rotuer, just to mention.

Thanks, Goran
0
Comment
Question by:Priest04
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
6 Comments
 
LVL 28

Expert Comment

by:Michael Pfister
ID: 20279191
Option 1: just discard the TP-Link router and only use the router that includes the DSL modem
Option 2: get a plain DSL modem and attach it to the WAN port of the TP-Link router
Option 3: may or may not work, depending what you can configure on the routers: configure modem/router to use a completely different class-c network, like 192.168.100.1/255.255.255.0, then configure modem/router to be a DHCP server, configure ISP access data to modem/router, then configure TP-Link router to use DHCP on the WAN port and NOT dial in to the ISP (LAN?).
0
 
LVL 18

Author Comment

by:Priest04
ID: 20279316
option1: not possible, since ADSL modem doesnt have LAN ports on it
option2:  not possible, I cannot use any other ADSL modem, because my ISP didnt give me username and possword for PPPoE connection (they are also not seen on ADSL modems settings), I am only allowed to use theirs.
option3: I am not quite here with you, but this what I know for sure:

configure modem/router to use 192.168.100.1/255.255.255.0 - I can do this on both modem and router
configure modem/router to be a DHCP server -  I can do this, but I was more like for DHCP OFF option
configure ISP access data to modem/router - modem has dynamic ip address, and it gets if from ISP, so i dont need to type any ISP settings - and I didnt receive any.
configure TP-Link router to use DHCP on the WAN port and NOT dial in to the ISP (LAN?) - this I dont get...  WAN settings for tp-link router are set to dynamic, but it doesnt get any settings at all when trying to get them - this is at my opinion where the problem lies,

Is there any option to set my tp link router behave like switch, since it will work then witout any problems.

Goran
0
 
LVL 28

Expert Comment

by:Michael Pfister
ID: 20279861
I don't understand "DSL modem doesnt have LAN ports on it". There must be at least one. Get a cheap 100 MBit 4-port switch and connect the modem/router from your ISP and your clients together. You may need to get a crossover- ethernet cable to connect the modem/router to the switch.

If you want to use your TP Link router as a switch, do not connect the ISPs modem/router to the WAN but to one of the LAN ports. You probably will need a crossover ethernet cable to get a connection.


0
Is Your DevOps Pipeline Leaking?

Is your CI/CD pipeline a hodge-podge of randomly connected tools? You’ve likely got a tool to fix one problem & then a different tool to fix another, resulting in a cluster of tools with overlapping functionality. Learn how to optimize your pipeline with Gartner's recommendations

 
LVL 18

Author Comment

by:Priest04
ID: 20284072
There is one lan port on it, and this is the one I used to connect tp link to. I have managed to connect both pcs to adls modem without router, one pc with ethernet cable, and another pc to usb cable, and it is working so far.

Just one question, so I can be sure for future challenges, when I connect 2 routers, I need crossover cable between them, not straighthrough?

Goran
0
 
LVL 28

Accepted Solution

by:
Michael Pfister earned 500 total points
ID: 20287880
Yes, if you want to connect 2 routers or 2 switches directly you usually need a cross-over cable.
Some models have a small button to switch between "normal" and "cross-over" for one of the ports.
The newer switch models with gigabit ports are able to autodetect the required setting, so the cross-over cable is no longer required.

0
 
LVL 18

Author Comment

by:Priest04
ID: 20290505
Thanks. I was kind of living in a believe that all routers have autosense ports, but its seems that they dont.

Thanks for the help,
Goran
0

Featured Post

Free NetCrunch network monitor licenses!

Only on Experts-Exchange: Sign-up for a free-trial and we'll send you your permanent license!

Here is what you get: 30 Nodes | Unlimited Sensors | No Time Restrictions | Absolutely FREE!

Act now. This offer ends July 14, 2017.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Are you one of those front-line IT Service Desk staff fielding calls, replying to emails, all-the-while working to resolve end-user technological nightmares? I am! That's why I have put together this brief overview of tools and techniques I use in o…
As companies replace their old PBX phone systems with Unified IP Communications, many are finding out that legacy applications such as fax do not work well with VoIP. Fortunately, Cloud Faxing provides a cost-effective alternative that works over an…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question