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New Member

Migrating to new network not possible in one haul or is it?

Hi,

My client, a hosting provider, will be migrating their client to a new network. The servers etc will get another public ip-address. Because some clients have quite a few servers I would like to be able to spread the migration period while still be able to direct the users of the clients to the appropriate servers etc. Some in the old network and some in the new network.

A suggestion is made to do this with load balancers.

Is this a good idea and are there other methods?

6 REPLIES
New Member

Re: Migrating to new network not possible in one haul or is it?

You could do this with a router, just add a secondary IP address wtih the new network, or put a route to your firewall on the router of the new subnet...

New Member

Re: Migrating to new network not possible in one haul or is it?

Hi,

Thanx for you answer, but you lost me.

Could you be just a bit more eleborate, please :).

Greetz

Jaap

New Member

Re: Migrating to new network not possible in one haul or is it?

Are the servers using public routable IPs? Or are they NAT'd? What kind of network device do you have in front of them??

New Member

Re: Migrating to new network not possible in one haul or is it?

Hi,

Yes the servers are using public routable IPs. They are not NATted.

In front of the servers are one or more firewall and also in some occasions loadbalansers.

Greetz,

Jaap

New Member

Re: Migrating to new network not possible in one haul or is it?

You can just assign the servers secondary IPs from the new block. Then, they will have two IPs, one from the new, one from the old...You could create a subinterface on the firewall.

New Member

Re: Migrating to new network not possible in one haul or is it?

Hi again,

I attached a diagram to explain my 'problem' maybe more clearly.

It concerns a partial move of some servers because the move can't taken place in a single service window.

Users workstation partially connect to an IP-address in stead of a DNS name.

TIA

Jaap

Jaap

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