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Solve : Multiple Gateways?

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Hi I've 2 network connections in my local machine and I would like to use both of them concurrently. How can I archieve the following:

1. Route all DESTINATIONS with the IP address 192.168.X.X (eg. 192.168.0.1, 192.168.254.254, ... not sure should I include the ones below) using local machine DHCP assigned IP address 192.168.8.128 with gateway 192.168.8.254

2. Route other destinations IP address using local machine DHCP assigned IP address 192.168.254.52 with the gateway IP address 192.168.254.1

Please advise, thanks!what you need is to create a static route for the 192.168.8.0 network.

The default gateway will remain as 162.168.254.1 as that is the route all other traffic should go out.
You can enter multiple gateways in Windows but it will only use them to load balance, it won't use one for one network one for another etc.

if you're using windows, open a DOS box and:

route add 192.168.8.0 255.0.0.0 192.168.254 metric 3

it's in the FORMAT: route add "network address" "subnet mask" "default gateway" metric 3 is the "cost" of the route

hope that helps.
Quote from: wonkey_donkey on May 20, 2009, 01:01:31 AM

what you need is to create a static route for the 192.168.8.0 network.

The default gateway will remain as 162.168.254.1 as that is the route all other traffic should go out.
You can enter multiple gateways in Windows but it will only use them to load balance, it won't use one for one network one for another etc.

if you're using windows, open a DOS box and:

route add 192.168.8.0 255.0.0.0 192.168.254 metric 3

it's in the format: route add "network address" "subnet mask" "default gateway" metric 3 is the "cost" of the route

hope that helps.


Hi wonkey_donkey, some clarifications here.

1. Why is it 192.168.8.0 only? Does that cater for all destinations with IP address 192.168.X.X, for eg. 192.168.1.0?

2. Why is the subnet mask 255.0.0.0? Shouldn't it be 255.255.255.0 for network class C?

3. I changed the route command that you've provided to this:

route add 192.168.0.0 mask 255.255.255.0 192.168.8.254 metric 3

But it's does not work, I cannot ping a machine with the IP address 192.168.1.8.


Reply from 192.168.254.1: Destination host unreachable.
Reply from 192.168.254.1: Destination host unreachable.
Reply from 192.168.254.1: Destination host unreachable.
Reply from 192.168.254.1: Destination host unreachable.

Ping statistics for 192.168.1.8:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
APPROXIMATE round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms


This is my route print


Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.8.254 192.168.8.128 1
0.0.0.0 0.0.0.0 192.168.254.1 192.168.254.52 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.0.0 255.255.255.0 192.168.8.254 192.168.8.128 3
192.168.1.8 255.255.255.255 192.168.254.45 192.168.254.52 1
192.168.1.21 255.255.255.255 192.168.254.45 192.168.254.52 1
192.168.1.53 255.255.255.255 192.168.254.45 192.168.254.52 1
192.168.8.0 255.255.255.0 192.168.8.128 192.168.8.128 10
192.168.8.128 255.255.255.255 127.0.0.1 127.0.0.1 10
192.168.8.255 255.255.255.255 192.168.8.128 192.168.8.128 10
192.168.254.0 255.255.255.0 192.168.254.52 192.168.254.52 25
192.168.254.52 255.255.255.255 127.0.0.1 127.0.0.1 25
192.168.254.255 255.255.255.255 192.168.254.52 192.168.254.52 25
224.0.0.0 240.0.0.0 192.168.8.128 192.168.8.128 10
224.0.0.0 240.0.0.0 192.168.254.52 192.168.254.52 25
255.255.255.255 255.255.255.255 192.168.8.128 192.168.8.128 1
255.255.255.255 255.255.255.255 192.168.8.128 10005 1
255.255.255.255 255.255.255.255 192.168.254.52 192.168.254.52 1
Default Gateway: 192.168.254.1


Please advise, thanks!Sorry i have just reread your original post again

So you have two network cards in your PC? If this is the case then you can assign different default gateways and different IP SETTINGS to each card without any problem. But if you want to communicate between them, then you'll need SOMETHING to route the traffic between the two networks.

Can you explain what you're trying to do and what's connected to each of the cards?

if the end goal here is to get better speed then it's a vain pursuit.Quote from: wonkey_donkey on May 20, 2009, 05:04:56 AM
Sorry i have just reread your original post again

So you have two network cards in your PC? If this is the case then you can assign different default gateways and different IP settings to each card without any problem. But if you want to communicate between them, then you'll need something to route the traffic between the two networks.

Can you explain what you're trying to do and what's connected to each of the cards?



I would like all my Internet access to use interface with IP address 192.168.254.52 and my internal network access to use interface with IP address 192.168.8.128Quote from: BC_Programmer on May 20, 2009, 05:10:27 AM
if the end goal here is to get better speed then it's a vain pursuit.

No. The reason is due to there are stricter firewall access rights in one gateway compared to the other.


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