How to combine networks with dchub. Need advice.

pva · Post by **pva** » 2006-02-11 16:56

Hello.

Short question: Is it possible with dc protocol (and software that use this protocol) to force all users of dchub to send traffic through hub? So how to disable peer-to-peer comunications?

Long story, why we need this:
We have two networks, say 192.168.0.0/24 and 172.16.0.0/16 and users in them. There is default route in each network, say 192.168.0.1 and 172.16.0.1. Now we would like to merge networks. The problems we have are:
:!:

We do not want to route traffic on our default router.
:!:

It's impossible to set route information at each users computer.

But. We have computer (dchost) that is connected to both networks with the IP's in them, say 192.168.0.3 and 172.16.0.3.

The idea is to set dchub server on that dchost and to force allusers to send traffic trough it without any default route. Is it possible?

Any advice appreciated.

Sorry, for such basic question, but looking into protocol specification I did not understand this.

Xan1977 · Post by **Xan1977** » 2006-02-11 17:39

This sounds like the responsibility of a level 3 device, don't know why you're thinking as high up as the DC protocol.

bastya_elvtars · Post by **bastya_elvtars** » 2006-02-11 19:00

Think it over. You have 2 workstations. One is 192.168.0.13 and the other is 172.16.0.67 for instance. You want the boxes to be able to download from each other via the dc hub but you don't want the traffic to go through the router. You have that dcbox. It MUST be behind both routers, with 2 interfaces, or 1 interface properly aliased. Now I don't know if a DC hub can listen on 2 IP addresses at a time.

pva · Post by **pva** » 2006-02-12 04:17

Thank you for your answers.

bastya_elvtars wrote:You have 2 workstations. One is 192.168.0.13 and the other is 172.16.0.67 for instance. You want the boxes to be able to download from each other via the dc hub but you don't want the traffic to go through the router. You have that dcbox. It MUST be behind both routers, with 2 interfaces, or 1 interface properly aliased.

Yes. That is what I mean.

Now I don't know if a DC hub can listen on 2 IP addresses at a time.

Well. Still need sugestion from some guru.

joakim_tosteberg · Post by **joakim_tosteberg** » 2006-02-12 04:33

Hmm, shouldn't it be possible to create some kind of VPN and the connect using that?

pva · Post by **pva** » 2006-02-12 04:48

joakim_tosteberg wrote:Hmm, shouldn't it be possible to create some kind of VPN and the connect using that?

Hm. No. We already use VPN to authorize clients. And we just do not want dc traffic pass through VPN.

Well. I can ask another, but related question. What happens if both users are in different subnets behind SNAT? Can they use DC protocol for comunication? How they can do that. Is it possible to pretend, that users are behind SNAT?

pva · Post by **pva** » 2006-02-16 10:22

Small bump.

Do anybody know, how should I configure hub/clients to allow clients to work behind NAT?