2 routers on 1 ip range secure from each othe

September 9, 2011 at 15:29:43
Specs: Windows xp, 2gh
I have a local store where i have 6 devices. 4 can access the internet and 2 i do not want to access the internet for security reasons. i need to add another router and a second nic card to acomplish this.
router 1 takes internet traffic and allows the security cameras and the office computer, and the register modem to get out on the internet.
ip range to
router 2 is to be a secure network connected to the register and the office computer on another nic card in the office pc. this does not get on the internet at all, and can only be accessed from the office pc
ip range to
subnet is but can be changed on router 2 network if needed.
running win xp sp3 and netgear router 2 and linksys router 1.

all ips are static and can be changed on number 2 network but not on number one.

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September 10, 2011 at 01:40:07
Do you mean that the register has 2 physical network connections? 1 connection for the register modem to the internet for sales and a second LAN connection to an office computer?

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September 12, 2011 at 07:28:07
Your post is a little confusing.

Just so you know, if you put a second NIC in a computer and one NIC has internet access and the other doesn't, the computer itself still has internet access.

As to your question about a second secure network, click on my name above in this response and read my “how-to” guide titled, “Add a second Router to your LAN

You'll want to pay attention to the scenario where you interconnect the two switches "LAN port to WAN port" and are using a different subnet on the downstream router.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***

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September 14, 2011 at 06:46:46
no, sorry my post is hard to follow, when i was thinking out loud it made perfect sense to me.
to make it simple "hopefully" the register has only one connection to the computer. the computer has two network cards. This is where the two networks split.
network # 1 ip range to
this network cannot access the internet
this must be secure from the internet and the other network

network # 2 ip range to
can and needs to access the internet.

when i set the routers up, i separate the routers usable ip ranges so they do not have an ip conflict. Each router is set up with the other unpluged, when i plug in both routers at the same time that when the internet drops and i cannot access the network #1 router. i still can access the network #2 router but not the interntt or any of router one functions.

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September 14, 2011 at 08:17:07
You should have puchased a vlan switch instead of a router. It is the only way you can securely separate the two internal networks.

BTW you can't have both acting as routers with both having the same lan subnet. That is why when you connect the second router you lose everything.

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