Third Network Card

MiguelAG · Joined: 11 Jun 2008 Posts: 11

Hello,
as well as Private network card and Public one,, I wanted to use a third NIC for remote desktop conection to my server. However, I have not been able to get Firstspot working properly. If I disable the third NIC, I can get it working properly.

Please note that my Public NIC is properly connected to the router and my Private one is conected to a LAN switch. Is it not possible to get a third NIC just for remote access connections? Could the problem be that I have the Public NIC and my third NIC in the same subnet? Would it work if I have them in different subnets?

Thank you very much and best regards,

MiguelAG

zheron · Joined: 04 Jul 2008 Posts: 11

Having two NIC's in the same subnet is not a valid IP configuration. Windows will route simply route everything out the first NIC in the binding order. If you wanted to have a third NIC for the purposes of remote access you would have to have a separate management subnet.

As a more secure method I would suggest using a single port IP KVM instead. Plus it would probably be easier to implement.

alan · **Forum facilitator** Joined: 26 Sep 2003 Posts: 4435

Officially, we only support two nic configuration.

But you can try:

1) make sure our FirstHop driver and Patronsoft NAT driver are not bind to your 3rd network card (go to Network Connections -> Properties, uncheck FirstHop driver for your 3rd network card if necessary). Reboot Windows if you make any changes

2) do NOT set Default Gateway for this 3rd network card (otherwise it will confuse routing).

3) give this 3rd network card a unique IP range (compared to your other 2 nic cards).
_________________
~ Patronsoft Limited ~

zheron · Joined: 04 Jul 2008 Posts: 11

Also, in addition to Alan's suggestions if your trying to accessing the third NIC from a machine in a subnet other than the one the NIC was on you would need to add a static route on the portal box using the route add command in DOS and make it persistent. So that the box knew to route that data out the proper network interface.

MiguelAG · Joined: 11 Jun 2008 Posts: 11

Thank you very much, alan and zheron,
not setting default gateway for this third interface gets the hotspot bridge working again, and even it does not matter if I have the third NIC in the same subnet than the public interface.

It seems that TCP/IP implementation in a host does not deal well with more than one NICs with the default gateway set. A good discussion about it can be foud here.

Great, thanks,

MiguelAG