subnet forwarding to pc

[robbinmra]

Hello dear community!

I have 10 PCs connected to a switch.

IPs are: 192.168.10.10-10.168.10.18 and one pc with 192.168.15.31

I need to set a route so that when PCs ask for 192.168.10.31 they would be forwarded to 192.168.15.31 PC (its not a network)

Is it possible?

I've tried:

route 192.168.10.0 255.255.255.0 192.168.15.31

and

route 192.168.10.31 255.255.255.255 192.168.15.31

but this does not work

Would appreciate any help

[Markus Thun]

Hi

it can not be work, because the gateway must be in the same network.

route 192.168.0.0 255.255.255.0 192.168.10.1

Regards

Markus

[robbinmra]

Is there just any sense to route to the same network?

[Harold Ritter]

Andrey,

You could forward packets destined to 192.168.10.31 to 192.168.15.31 but the issue is that the PC with address 192.168.15.31 will discard those packets as it will not recognize the destination address as its own. This would require some kind of NAT to get it to work. Could you tell us a bit more on what you are trying to achieve and why you can't just change the adress of this PC from 192.168.15.31 to 192.168.10.31?

Regards

[robbinmra]

Im using Allied Telesis switch (it level 2+ switch) x510-28GTX

I cant change adress from 192.168.15.31 to 192.168.10.31 because of broadcasting from 192.168.10.10 to 192.168.10.0

I've created vlan2 and put 192.168.15.31 pc port to that vlan, then made ip route 192.168.10.31 255.255.255.255 vlan2

but couldn't check if its working.

[Markus Thun]

Hi,

it is not possible to make that without NAT. I have get you a solution with NAT.

Computers can not communicate form different subnets without a router (layer 3 device).

Your possibility is to use a router with NAT.

Regards

Markus

[robbinmra]

Hi, thanks for help, this seems to be correct, but impossible for my l2+ switch

[Markus Thun · Accepted solution]

oh sorry there was an mistake in my command.

you cannot forward this via command route.

route 192.168.10.31 255.255.255.255 192.168.15.31 <----- this command said that the Host 192.168.10.31 is reacheable via the router 192.168.15.31.

You want, that the ip traffic change the destination Ip to 192.168.15.31 thats true?

so you need a router  to create a network like this: 192.168.15.0 255.255.255.0 (for example)

The router get the IP 192.168.10.31. You configure the router that packet with the destination address 192.168.10.31 forwarded to 192.168.15.31.

Interface fa 0/0

ip nat outside

ip add 192.168.10.31

interface fa 0/1

ip nat inside

ip add 192.168.15.31

ip nat inside source static tcp 192.168.15.31 192.168.10.31

I hope that is helpful