RSV 400 best solution for this scenario?

Hi
As shown in the diagram below, I have a central office and two branch offices, these offices are connected by a private routing service that has no connection to the Internet, the telecommunications operator in each office installs a router with a LAN and a WAN IP and configuration of these devices cannot be changed except the LAN IP. Only the central office network that is 192.168.0.0 have a router that has internet access. Remote offices have no access to the internet, what is needed is that remote offices can access the internet using ADSL router 192.168.0.254 at the central office.  There are a small devices in each remote office  that must connect to the internet and do not support any configuration except IP, mask and gateway, for example you cannot add a static route. Currently the pc’s at remote offices has IP communication with the server from the central office using a static route.
Does the solution would be to put some VPN routers between each LAN and the operator’s routers (where RT yellow star appears in the diagram) and put the hosts of the two branch offices same IP range that the central office network?
I had thought to use RSV400 routers, Is this the most appropriate equipment for what we want to do?
Thank you very much for the help

Originally Posted by kjhurni
This is just my opinion, of course, but:
If you don't want to have to migrate your NSS data and keep the same server names/IP/s and cluster load scripts, then I believe a Rolling Cluster Upgrade is a good way to go.
If you look in my signature, there's a link to my OES2 guides. Somewhere there is one that I did for our Rolling Cluster Upgrade.
If all you have is NSS and iPrint, then you only need to use the miggui (migration utility) for iPrint--or so I think (I do have to followup on this one as I vaguely recall I asked this a while back and there may have been a way to do this without migrating stuff again).
But your NSS data will simply "re-mount" on the OES11 nodes and you'll be fine (so that's why I like the rolling cluster upgrades).
Let me double-check on the OES2 -> OES11 cluster option with iPrint.
--Kevin
Thank you Kevin for your answer.
Finally, I think Im going to proceed using transfer ID on my servers that Im only using NSS over NCS (I only have two machines with one NSS volume)
because it seems that its a good option. I would like to keep old IPs from all the servers, cluster and resources if possible. So, testing this
migration on my test environment it seems that it works fine:
- I use miggui for transfer id between all the machines: physical -> physical and virtual -> virtual. eDirectory assumes new hostname, IP, etc.
the only task "out of the box" is that I have to delete the cluster and regenerate (reconfigure NCS on the new servers) but its pretty easy. This way
I have the two old ips from the older machines and all the ips from the cluster and the cluster resources also. I think that its the best plan.
For the other two machines that has 4 nss volumes and iPrint I must think about a plan. But with those, Im going to proceed this way. I hope
I have chosen a good plan!
thank you so much all for your answers / advices

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