John,
If your operating in the UK or Europe, Nextra would he happy to help you
develop the VPN solution.
The VPN can be like a permanent link, if there are no contention issues. I
would suggest the following:
Use an ISP that specialises in business usage.
Look for the use of MPLS to guarantee your bandwidth.
Use the same ISP for all nodes.
Use specialist VPN devices (such as Cisco 3000 series VPN concentrators) in
each location.
Set up LAN to LAN links with DES or 3DES encryption, this will make the VPN
look like a regular router link to the clients.
(Remote workers can connect to the VPN via VPN client software).
This is the way our own network is developing (and we are a business ISP).
regards,
Richard Dann
-----Original Message-----
From: John Shi [mailto:[EMAIL PROTECTED]]
Sent: 14 August 2001 22:40
To: Exchange Discussions
Subject: Frame Relay or T1 line+VPN.
Hi, Everyone
The Technology is changing very fast. I was more comfortable with Frame
Relay then T1 Internet VPN technology.
We have one central site and 4 remotes sites. Originally, I was thinking
to keep the frame Relay, but my boss thought the each site has its own T1
line and VPN to our central stie is good as well. The issue is pricing is
about the same on T1 to the Internet and frame Relay.
On the remote site, we are going to have W2K DC and Exchange 2000 server
10 months from now. The frame Relay contract is going to expire within 9
months. I want to find out if I should re-evaluate the T1 Internet and VPN
options or I should keep Frame Relay. How would the W2K DC replication
work on the VPN at the different locations? I did not need to think about
this when we are in the Frame relay.
If I go with VPN through T1 Internet. How would my Exchange server on each
site commmunicate with each other throuh VPN? Does anyone see any need
that I should keep my Frame Relay based on our situation? If we use
Internet VPN on each site, does that mean we need to have public IP
address on the exchange server on each site.
Thanks
John Shi
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