troubleshooting Question

SBS 2011 subnet range, is 10.20.1.1/24 (mask 255.255.255.0) legit ?

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mjezardFlag for United States of America asked on
SBSMicrosoft Server OS
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I am preparing to upgrade from an SBS 2008 server to SBS 2011

In preparation I'm reading through the "Windows Small Business Server 2011 Administrators Companion" and came upon this statement:

"The one thing you can not do is choose an address range in the 10.xxx.yyy.zzz private "A-Class" range - the SBS 2011 wizards will not support that range" (Page 118)

I am currently using an address range in the 'A-Class" , but I'm using a "C-Class" subnet mask.

My question is therefore: Don't they mean that I can't use an "A-Class" subnet (255.0.0.0), PLEASE tell me that things haven't changed and the wizards will ignore (or worse still, blow things up) for me !

If I use the same address range (10.20.1.xxx) with a mask of 255.255.255.0, surely that's OK?

Changing IP Addresses all over the place would be a bear !!
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