Hi,

I'm looking for some feedback from the community regarding the transfer of AD
traffic over a public WAN.

The basic plan is this:

Single Win 2000 domain spread over two sites in different cities. Each site
has perimeter NAT device and are obscuring internal subnets with IP addresses
provided by a single ISP. No internetwork VPN planned. DNS is AD-integrated
at both sites. Both DCs are patched to SP3.

The MS documentation I've consulted indicates that AD replication, and by
extension, DNS zone information that is AD-integrated is automatically
encrypted.

My question: if the data is already encrypted and is passing only across a
single ISP's network, should one be bothering with a router-router VPN tunnel
for this traffic? IOW, would setting up such a tunnel for this data be
redundant/unnecessary or am I missing something important here? Would anyone
care to comment on the relative safety of AD encryption out-of-the-box?

Thanks in advance for any feedback,

VS

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