I just re-configured an SBS2003 Server to use two NICs and noticed a message
that appears to indicate that the SBS2003 connection includes NAT (Network
Address Translation) ... however the 'external connection' is already within
a Private Address space behind a NAT router (SBS2003 External IP =
The Hardware router has the Internet Static IP address and provides.
So ... I think that NAT implementation uses a portion of the data packet to
carry the NAT data ...
Now I am wondering ... does this introduce a potential data corruption
Is there a requirement to reduce the MTU setting to accomodate nest NAT
Everything seems to be working, but I haven't done any specific testing to
verify the data integrity of maximum size IP Packets transferred over the