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i have a dell r710 running windows server 2012 and hyper-v with 1 x windows server 2008 r2 guest (which i've just migrated from a server running windows server 2008 r2 with hyper-v, by re-creating a fresh vm and attaching the vhd to it).

it has an public nic with multiple public ips and an internal network. i'm using rras to provide to nat multiple ips on the public nic to multiple private ips on the internal network which the guest vm connects to.

i am seeing blue screens when configuring routing and remote access (rras) which provides the nat between the 'internal' network and the public nic and also within a short time after the configuration (they are fairly frequent).

i'm using netsh (specifically netsh routing ip nat) to configure the nat using a script. i've noticed that if we reboot the machine the nat does does not work upon rebooting, and i need to re-run the script (using netsh -f ...txt) in order to get the nat working.

any thoughts on the blue screen issue in particular would be much appreciated.

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confused is it the guest or host that bsods, thinking its the guest right? –  tony roth Nov 6 '12 at 15:01
sorry for the confusion. it is the guest. –  Aaron - Solution Evangelist Nov 7 '12 at 10:11

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