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hyde1

join:2012-11-16

Wifi for internet, LAN for printing only?

We just got our 2nd ISP in the office, and while waiting for our Dual WAN router, I would like to test the connection of our new ISP (while keeping everyone else unchanged with old ISP) but I don't want to have to switch back and forth between two LANs since I print a lot and get scans pushed to me.

I can just put a wireless router on the new ISP's router, but is there anyway I can remain connected to the older wired network so I can still continue to print & scan, but internet should still be routed over Wifi (since there is still active internet connection in wired network)

I am running on Lenovo X220 64 bit Win 7 Professional.

Bink
Villains... knock off all that evil

join:2006-05-14
Castle Rock, CO
kudos:4
Reviews:
·VOIPO
My recommendation would be to put the new router in the same subnet, but give it a different IP. So, for example, the IP of your primary ISP’s router(/your default gateway) is 192.0.2.1 and you’d give the secondary ISP’s router 192.0.2.2. Then all you’d have to do is change the default gateway of your notebook to 192.0.2.2 and you—and you alone—would be using the secondary ISP while maintaining all usual connectivity to your LAN. (This assumes your WLAN and LAN use the same subnet.)

HELLFIRE
Premium
join:2009-11-25
kudos:19
reply to hyde1
Second Bink's option. I can't think of any (simple) way to do this that doesn't involve un/rehooking a network
cable. Just curious, you are looking to set this up for everyone in the office, or just yourself?

Side question, what make / model of dual WAN router are you putting in?

Regards

jimbopalmer
Tsar of all the Rushers

join:2008-06-02
Greenwood, MS
kudos:3
Reviews:
·Suddenlink
reply to hyde1
Let assume your 'old' wired network is 192.168.1.0 and your 'new' wireless network is 192.168.2.0, just as examples.

If your wired adapter is a static address in 192.168.1.0, say 192.168.1.50 with a subnet mask of 255.255.255.0 and no default gateway then it will only use 192.168.1.0 for local traffic.

If your wireless adapter is in 192.168.2.0, has a subnet mask of 255.255.255.0 and the default gateway is the IP of your wireless router (DHCP works fine for this case) then all traffic outside your local network will use the wireless.

One warning, once you install a wireless router in your office, anyone may connect to it by accident. (and will)
--
I tried to remain child-like, all I achieved was childish.

hyde1

join:2012-11-16
reply to HELLFIRE
said by HELLFIRE:

Side question, what make / model of dual WAN router are you putting in?

Just ordered ZyWALL USG50

hyde1

join:2012-11-16
reply to hyde1
Thanks for all the answers, I honestly didn't think I would get an answer so quickly, I should have stayed up a bit more.

I am trying to set it up just for myself for the time being, at least until I am sure that there are no problems with the new connection.
We have dual channel T1 and voice running over it as our primary connection. It is running from ISP managed CISCO box to our internal Linksys router, from there it is distributed via switches to about 20 work stations and various network connected devices.

Daily operations, I am connected directly to router (bypassing switches) via Ethernet (i don't use wifi in the office unless I need to).

Also the only two devices I need to access to, our Canon imagerunner 2870 is on 192.168.1.240 and our HP 4015n is on 192.168.1.245
They are all on same subnet, same DNS.

Current equipment (but only T1 is utilized by everyone)
a) T1 - Cisco Router - Linksys Router - Switches - Devices Assigned IP/Workstation DHCP - 192.168.1.X

b) Time Warner Cable Router - DHCP - 192.168.0.X

I will connect to both at the same time and report back. So for now it will actually be opposite (wifi for printing via local router and LAN for internet direct to TWC equipment)

Bink
Villains... knock off all that evil

join:2006-05-14
Castle Rock, CO
kudos:4
If not readily evident, I highly recommend you disable DHCP on the Time Warner router while connected to the LAN.

hyde1

join:2012-11-16
I just connected both and now the internet is going through LAN (TWC) and I can still print & scan. In the past this did not work, how is it working now? Is it solely because TWC router is using a totally different gateway?

Wifi to Linksys Router for Cisco T1 and has network devices
IPv4 Address. . . . . . . . . . . : 192.168.1.250(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1

LAN to TWC Ubee Equipment directly
IPv4 Address. . . . . . . . . . . : 192.168.0.5(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 64.x.x.x
. . . . . . . . . . . . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1

I can disable DHCP on TWC equipment, but I am not sure why is it assigning Default Gateway 64.x.x.x to my PC because if I disable DHCP I would just use gateway 192.168.0.1

If I keep my connection as it is now, will there be any conflict or lag? I read that windows will always check the fastest connection and route primary information through that. Does this mean if I use wifi for TWC and LAN for T1, will it go through T1 instead since LAN is Gigabit and WLAN is only 56mbps? I would definitely use jimbopalmer's "no default gateway" method for LAN if that's the case, but I still wanted to make sure it is right for above.

Bink
Villains... knock off all that evil

join:2006-05-14
Castle Rock, CO
kudos:4
Reviews:
·VOIPO
I don’t know why you got a 16/8 address for your default gateway or how you got two gateways for your wired NIC, but, with regard to your printing, it is likely everything is working because 192.168.1/24 traffic goes out the wireless NIC and 192.168.0/24 traffic goes out your wired NIC. If you keep it as it is now, you’ll be fine—Windows sets a lower route metric for faster interfaces—and you are correct in that if you reverse the current connections, your wired NIC will always be favored (though you can change this).

hyde1

join:2012-11-16
Thanks, will keep it as it is for now, it won't be long (although Amazon still did not send me a shipping confirmation for ZyWall)
When you mentioned "though you can change this", how do I do that. I always wanted MS to fix this and give complete control of connections to user, but it seemed like it always had it's own mind when working..

Bink
Villains... knock off all that evil

join:2006-05-14
Castle Rock, CO
kudos:4
Reviews:
·VOIPO
The simplest way to change the default interface metric is to go to the Properties of your Local Area Connection and IPv4 and use the Advanced button to remove the Automatic metric for the interface and set your own. That said, I consider the defaults sane and would only change them if needed (which might be the case in your temporary situation).

hyde1

join:2012-11-16
Thanks. I am so glad that there is also ZyXell forums in this site, and helpful people like you guys.