Thanks, my main concern is the device knowing which port to send either VPN or normal (public) data.. that must be selectable.
I'll have a look at the Junipers and Drayteks to familiarise myself.
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Question
VPN Firewall to route between 2 VLANS?
Hello, can anyone tell me if this is possible. As per the attached diagram I am after this kind of network where my routing provider (left side of cloud) connects to a VPN/Firewall device (it currently connects directly to the public vlan of the switch). The VPN/Firewall would be physically connected to each VLAN, so the different nodes on the VPN/Firewall device would have to have separate IPs (I think?)
Normally, I think, the uplink connects to a switch and a VPN device sits on the switch and would connect to a different switch for VPN traffic. I would like the firewall/vpn device to be first in that chain. The 2 staff VPN devices will create a VPN with the vpn/firewall device and route vpn traffic to the vpn/internal VLAN. All public traffic (non-vpn) gets routed to the public vlan on the same switch.
I'm really just trying to release the packet filtering burden from the switch and individual machines.
The public and VPN VLANS are on the same switch. VPN vlan nodes have internal non-routable IPs, the public nodes have public routable IPs. I only want to spend ~ £100-£150 on the VPN/Firewall device. Second-hand/ebay items are fine.
Just confirmation that there are devices which are capable of what I am asking for (in that price range), maybe even hinting at example devices, would be a great help.
- flow-vpn-EE.png
- 73 KB
Network topology. Red lines: VPN data flow; Green lines: Unencrypted data flow; Orange lines: Unwanted data flow.
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Answers
Thanks, that's great. I'm looking at drayteks at the moment and just one thing concerns me. Even though you can vlan the lan ports, you still assign one "lan ip" to the vpn router (doesn't appear to be one per port, just one overall). Does this affect it in anyway, especially where that IP address may only be in one of the subnets and not the others.
Thanks.
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by: deimarkPosted on 2008-11-03 at 00:40:24ID: 22865343
IN short, from what I understand, its possible for you to do what you are looking for here.
Any small VPN device should do for this, but ones i have experience with are:
Check Point UTM-1 Edge
Juniper SSG5/SSG20/NS5GT
I also hear that draytek routers are also good for VPNs, but I am not too sure if you can get a decent bit of kit for the money you are looking at, however, ebay is probably the best option for the light in cash. :D
Each of which will offer full IPSEC functionality and also cater for the VLANs/multiple internal ports.
You are right as well, each inside connection on the firewall, will need to have its own IP for the public and VPN nets. You can still do all your vlanning on the switches if you want, but the firewall will be doing the security.