WAN Network Addresses and Long Range Ethernet Address

[Fox1977]

Hi there,

Just a bit stuck on this and wondering if anyone can help me out. We are in the process of setting up another server solution in a second data centre. We are trying to joing to networks running on different IP addresses using a long reach ethernet connection between the two sites. We are in the process of getting the cabling put in but i am not sure on the network addresses to use to connection the two.

We could take an address from our first solution and and put it on the end of the LRE conenction in the data centre but that would mean everything would be broadcast out over the lRE connection. The company i am working with suggested setting up a private network address range at either end of the connection.

I am not sure exactly how this would work. Could anyone help clarify this. If i put 192.168.0.1 and 192.168.0.2 at either end the two machines that are connected would be able to talk but how would the other machines on the different addresses at either end talk? Would i need to allocate private IPs for all of the machines on the network to get them all to talk?

Should the LRE connection at our existing solution go into the 2nd network card of one of the servers or into a switch? Bit stuck on this as things are complicated as i think the switch has got several different VLANs on it. If i put it into the machine directly i'm thinking we are going to struggle to talk to anything apart from that one.

Sorry for all the questions but i'm a bit stumped!

 

[LawnBoy]

We're going to need more info. When you say you need to "join" two networks, what exactly needs to be accomplished? Do you want all users to be able to share files with all other users, or do you need all users to see all servers, or what?

And we're going to need to know what those VLANs are doing.

Basically, you'll either put everything on the same subnet, or you will configure a router to control traffic between subnets.


"We must fall back upon the old axiom that when all other contingencies fail, whatever remains, however improbable, must be the truth." - Sherlock Holmes

 

[jimbopalmer]

1) If you have several VLANs now, you already have a routing solution of some type. Adding one more subnet should be easy.

2) Assuming you have switches (not Hubs) at each end, only traffic destined for the other end will be sent from that switch port.

3) Assuming different addressing schemes, you need a router at at least one end, perhaps both. (To use a new private network, both, to add a new subnet to an existing router, one)



I tried to remain child-like, all I acheived was childish.

 

[LawnBoy]

you already have a routing solution of some type

While that may be likely, it's not necessarily true. I have 6 VLANs and I'm not routing between any of them.



"We must fall back upon the old axiom that when all other contingencies fail, whatever remains, however improbable, must be the truth." - Sherlock Holmes