Blog with a focus on Azure and System Center

SCCM 2012

SCCM 2007 / 2012 and subnet boundaries

Recently I encountered an issue with subnet boundaries in SCCM 2007. Personally I rather not use subnet boundaries, but rather IP ranges or AD sites. In this case the client felt more comfortable with subnet, since they used them successfully in the past and did not want to change that. In preparation for a new location, boundaries needed to be put in SCCM and one of the boundaries was a supernet 10.129.0.0/19 (subnet mask 255.255.224.0). If you enter a this information in SCCM 2007, SCCM will create a subnet ID of 10.129.0.0 and treat this as a /24 range. See pictures below Making a /24 subnet (IP adress 10.129.0.1 – 10.129.0.254) instead left us short of a couple of subnets that are in the /19 subnet. In reality the supernet (/19 subnet) has 5 bits extra which make up 1+2+4+8+16 = 31 subnets (IP address 10.129.0.1 – 10.129.31.254). Needless to say that things did not work…

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Multiple Software Update Points connected to a CM 2012 SP1 Beta Site Server – Part 1

In System Center 2012 Configuration Manager SP1 Beta you now have the exiting option to have multiple SUP roles connected to a site server. To see how that works I started testing this. My starting point is 1 primary site server S01 installed on server 2012 OS with CM version 2012 SP1 Beta and my endpoint should be 1 primary site server with 2 remote SUP’s. The 2 remote servers I have installed with server 2012 OS and I enabled WSUS, but did not configure WSUS since we want to have CM 2012 handle this. Having all servers prepared I jump into the CM 2012 console to add the first SUP to the S01 primary site server. In the Administration node I click on Sites and choose Create Site System Server in the ribbon, see pictures below   The wizard is started I will not put all the screenshots in this blog, I…

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