2 Routers - 2 ISP's- 1 network???

November 17, 2005 at 13:32:50
Specs: Mixed, Mixed

Hey Everyone

I have a mixed office network but want to isolate some of the computers to be on an seperate internet connection. These users would still need to access printers etc on the other network. Is this possible? Would a bridge work?

Let me know what you think

Thanks in advance


See More: 2 Routers - 2 ISPs- 1 network???

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November 17, 2005 at 14:11:12

Can you give an example of what you are trying to accomplish?

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November 17, 2005 at 14:56:57

I was originally using a Symantec VPN/Firewall 200 which is a router with 2 WAN ports. This way i could have 2 internet connections and load balance between them.

The router has gone on the fritz and getting support for it is no fun. Im wondering if i can still make use of the 2 internet connections we have by spreading out the connections to various computers. These computers would still need to be on the same network as they need to access printers and other servers.

I have 2 linksys routers and am wondering if i can put each internet connection into each router, spread internet access through the office but still be able to access the other network components.

Hope this makes sence. Thankce for you time


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November 17, 2005 at 15:03:04

You won't be able to do with without two routers which seems a waste after the vpn/firewall.

But you can do it and heres how

2 routers go into switch [which could connec to other switches]
routers provide no dhcp
router1 is
router2 is
you do static ip assignments in the range of [x=amount of devices]
You put the .1 as gateway for some and .2 as gateway for others.
You are still on the same network for printing and file sharing.

Golly gee wilerkers everyone. Learn to Internet Search

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November 17, 2005 at 15:08:45

Thanks wanderer

That is kinda what i was thinking. Only draw back to that is we have people vist our office who want to get on the wireless AP that we have. With no DHCP active there would be no internet access unless these visitors configure their laptops with static ips.

Any ideas for that?

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November 17, 2005 at 15:10:44

just a note. we are providing wireless access via a linksys wireless router which has dhcp disabled (acting like a switch i guess)

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November 17, 2005 at 15:47:00

that gets a bit more complicated.

One router would have to supply dhcp. Lets say its the .1 router.
You can hard code which pcs get those ip address by ip reservation table. If the router supports it [most do these days]. This is where you associate the nic cards mac address with a ip address. Only that nic will get that ip address and the gateway of .1

You would leave the range of lan ips larger so a wireless laptop could get a ip by dhcp.
so would reserved ip and 21-25 would not be reserved so they are open for wireless assignment.

Golly gee wilerkers everyone. Learn to Internet Search

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November 17, 2005 at 16:21:55

Plug the wireless router into a switch. Enable DHCP. Set the WAN manually. Only the wireless connections get DHCP.

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November 17, 2005 at 18:06:48

wizard-fred you missed that he has 2 internet connections. Gonna make him buy a third wireless router? that being the case why didn't you recommend a wireless ap?

Golly gee wilerkers everyone! Learn to Internet Search

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November 17, 2005 at 22:08:48

He said he has a wireless router wanderer.

just a note. we are providing wireless access via a linksys wireless router which has dhcp disabled (acting like a switch i guess)

Fred's right, all he has to do is plug it into the switch, statically assign it's "WAN" IP in the same range (maybe .254) and enable a DHCP scope for the wireless clients. He can give the wireless router's IP as the wireless clients gateway. If his WAN IP assignment is correct, it'll all work.

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November 18, 2005 at 08:14:01

CurtR I would have taken the "note" as one of the two routers first listed. Never was there mention of three routers. So if he has two routers, one being wireless, with two internet connections, it would take a third to do as wizard-fred suggests.

Sure if he has three routers one could be setup just for the wireless. But if he only has two then my game plan would be the way to go.

Golly gee wilerkers everyone. Learn to Internet Search

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November 18, 2005 at 08:28:05

So the wireless router gets plugged into the switch? Do i put the cable into the WAN port of the wireless router?

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November 18, 2005 at 08:29:21


I did mean that i have 3 routers, 2 for the internet connections 1 acting as a wireless AP

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November 18, 2005 at 10:43:45

Thanks for the clarification [sheepishly puts head down]

Recommended config is to not use the wan port but just a crossover cable from switch to router lan port.

See here for example

but the recommendation is not to enable dhcp which defeats your design.

You can try connecting from switch to wan port but the gotcha is the lan side has to be in a completely different ip range or you can't go from the AP to the network.

Golly gee wilerkers everyone. Learn to Internet Search

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November 18, 2005 at 15:11:53

I was a little confused myself....and just assumed (correctly for a change as it turns out....LOL) the wireless unit was a router.

HAH~ You're absolutely right wanderer, plug it into a regular network port instead of the WAN port (what was I thinking!?).....my turn to space out I guess....oh well, half right is better than all wrong *sigh*

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November 21, 2005 at 08:06:57

Thanks for your help everyone. Ill give it a try and see what happens

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November 22, 2005 at 07:06:48

Hi dear

I need configuration of WAN link connected through Bridge network having Private IP serise.Both side of Routers having Public IP address. I need a configration at both the Routers so that I will make communicate between both ends.

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November 30, 2005 at 07:41:52

My boss tried a symantech 200 firewall as well

we have 55 windows clients and he was wanting to use it as a gateway problem is he didnt account for laptops thin clients printers etc not to mention even if we only had 50 pc's at any one time a pc might be utilizing multiple ports

the machine is rated for 50 connections but remmember one pc might have more than one connections so even a network of 25 can overload such an applience its better to get a little more than you need or build your own applience like I did here

an excellent sollution is fortinet firewalls if you dont know how to build one

it does vpn
virus stripping
spam filterning
web filtering
port forwarding
preaty much anything you might want I set one up for a friend that was continually plauged by viruses at his work and since only 2 viruses made it passed the firewall
If I reacll the applience was about 800 us dollars with a full subscription

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December 10, 2005 at 20:13:58

Periods are your friend!!

To everyone: This thread has been extremely helpful in setting up my new network. I love this place. So many intelligent people willing to help eachother.

Alert me after you respond otherwise I'll forget to come back.

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