Configuring Routers - Need some serious help

September 14, 2010 at 12:26:03
Specs: Windows Vista
Hello Guys.

I am in need of some serious help on configuring routers from a modem.

OK so here is the deal.

I have Charter Cable internet/phone service at my store. The internet modem doesn't have enough ports so i connected a regular D-Link router (not wireless) to the internet modem so than i have enough ports to run all my machines. All my machines such as FOOD STAMP/WIC and a machines that prints PIN number for Boost, T-Mobile etc works (until this stage, everything is working fine). I had to add couple of more machines to my network and i needed few more ports, so i decided to add a wireless N router (Linksys) to it. I hooked up my Linksys wireless N router to the Regular D-Link Router (at this point, D-Link is the main router and Linksys is the 2ndery router) Everything was working fine up until few days back. My machines stopped working, there was no connectivity to it and so as my computer. Somebody told me that you need static ip's for your little network, so i ordered Static ip's from Charter and tried to configure both routers myself.

1. I hooked up D-Link router to my computer and configured the router through Static ip's.
2. After i was done with D-Link, I hooked up my Linksys Wireless N router to my computer and configured it with Static ip's.
3. I hooked up D-Link router to my Charter Internet Modem and from D-Link Router, I connected Linksys router and through linksys router, i hooked up my computer. Everything was working fine up until this morning. All of a sudden, computer stopped working but not at the full. Sometime it will have connectivity and sometime it will not.

Note: I haven't configured the network connections in my computer yet because i don't know which IP i should use? However i tried changing the network connections and tried different IP addresses in there but its not working.

I know i am doing something wrong but i can't figure it out.


Now some more info:
D-Link router, i am using it as a router not as a switch even though somebody told me that you should use your regular D-Link as a switch and make your Linksys wireless router as a main ROUTER, i tried that but it didn't work, none of my machines worked with this setup (i disabled DHCP in my D-Link router to use it as a switch). I even bought a netgear 5 port switch for the setup, i made my Linksys the primary router and than gave the connection to the Netgear switch but there was not connectivity.

I am sorry for this long a*s question but i really need help to solve this situation.

Thanks


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#1
September 14, 2010 at 12:36:19
You needed a single switch with enough ports. Adding multiple routers only complicates the situation.

You can't use a router as a router and disable dhcp server on it unless you assign a static ip address to the workstation. This is why the linksys didn't work.

The way you are hooking these up you will end up with extra router hops and possible same subnets which results in what is off one router not talking to what is off another.

I can advise you using the present equipment but would HIGHLY advise you just get a good managed switch instead.

What ip range are you using for lan?

Note: you do not want to introduce wireless to your business environment due to security concerns


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#2
September 14, 2010 at 12:52:10
@wanderer

Dude thank you so much for the quick response.

My ip range starts from (last 3 digits) 249 to 253.

I already have a Netgear Switch ready to be installed. I tried it but i couldn't figure it out. I am ready for your advise.

Is there anyway that i can call you? sorry if i am being personal.


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#3
September 14, 2010 at 13:09:50
Sorry I only do online support. My way of staying off the grid.

Please list how many phones and how many POS terminals

Assuming a private ip range of 192.168.x.x one issue you maybe running into is not enough ip addresses. You only have enough for 5 devicess with 249 to 253

Are we working with existing equipment or are you going to get a managed switch?


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#4
September 14, 2010 at 13:47:15
No Problem. Online support is better than nothing.

First of all, i have NETGEAR 8-port Gigabit Ethernet Switch (model: GS608) is that good enough or i need a different kind?

If that's good enough than the network is something like this:

Just made a little diagram of my network, here is the address:

http://www.fahadsworld.com/My_Netwo...


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#5
September 14, 2010 at 13:52:13
OK so you have 5 devices not including phones

You wrote:
"Somebody told me that you need static ip's for your little network, so i ordered Static ip's from Charter and tried to configure both routers myself."

I believe someone advised you incorrectly. This maybe part of the problem

How many static ips did you get?

Are the ips you are using for phones the same subnet range as the POS/PC?
Does the pc need to access the POS/Phone systems?


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#6
September 14, 2010 at 14:01:20
"Are the ips you are using for phones the same subnet range as the POS/PC?" I don't know about that dude. How do i find out? and besides that, i never had any problem with my phones. they are working just fine.

Before connecting the LINKSYS router to my network, everything was working fine. I just updated the picture, do you mind clicking on the link again? or refresh the picture?

I got total of 5 static ip addresses. as i mentioned before they are:
gateway ip: 97.8*.**.249
subnet mask: 255.255.255.***
DNS Primary: 24.247.**.53
DNS secondary: 24.247.**.53
Usable IP Address: 97.86.**.250

Usable IP Address:
97.86.**.249
97.86.**.250
97.86.**.251
97.86.**.252
97.86.**.253

Thats all the information i have and i believe they have the same subnet mask.


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#7
September 14, 2010 at 14:05:45
Did you assign the static ips to the 5 POS/PC?

That would be fine if you had NO routers between the POS/PC and router/modem.

Have you tried just leaving the ip addressing as is and just using the 5 port switch off the modem/router? That should work instantly.

Phones are working so we will ignore them.


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#8
September 14, 2010 at 14:14:17
No, i have not assigned an ip/static ip to my pc yet because i don't know what ip should i use from the 5.

"" Have you tried just leaving the ip addressing as is and just using the 5 port switch off the modem/router? That should work instantly.""
you got me confused right there a bit. I did try all the default settings, it started working but after few days it was not working?? is that the right answer to your question?

As i mentioned before, my POS 4 and Pc are not working sometimes but everything else work fine. RIGHT NOW they are working but earlier they were not.


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#9
September 14, 2010 at 14:18:49
If you connect only the switch and assign those static ips you were given to the POS and PC you will be fully operational.

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#10
September 14, 2010 at 14:28:19
hmm... Well the problem is that the POS systems i have, i cannot get inside it because it needs a password and i don't know the passwords. They State of Michigan People installed those with AT&T DSL but after that we changed our service from AT&T to Charter Cable internet.


The POS systems i have model numbers are:
Verifone Omni 3750 http://www.creditcardstore.com/ccst...
Verifone VX 570 http://www.posguys.com/images/Catal...


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#11
September 14, 2010 at 14:35:54
So basically what you are saying is that, connect the switch to the Charter cable internet modem and give the static ip addresses to my POS systems and PC and i should be fine...?? right???

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#12
September 14, 2010 at 14:40:30
One more thing, If i make the LINKSYS Wireless router my main router running from the internet modem, do i have to give static ip address to my linksys router??

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#13
September 14, 2010 at 14:54:12
You should be able to talk to someone at the State concerning the POS. I suspect they are set to dhcp not static assignments which is why they worked when you put the linksys in.

I would again advise against setting up a wireless router. It is a security hole in your network.

An alternate configuration would be to hook up a router to the modem. You would put one of the static ips you have on it wan interface.

You would hang the switch off one of the lan ports so you would have 3 available lan ports off the router and 5 with the switch.

You would configure the router to supply dhcp ips to the POS and PC. This is assuming the POS are configured as dhcp clients.


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#14
September 14, 2010 at 16:56:30
Thanks brother. I already contacted the people who installed this system and they will come to re-setup again.

Thanks a lot for your help.


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#15
September 15, 2010 at 06:47:57
Happy to help though if you do the alternate configuration and use dhcp you will be able to add devices in the future. Best of luck.

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