Our lustre 1.8.4 system sits primarily on subnet A. However, we also have a small number of clients that sit on subnet B. In setting up the subnet B clients, we provided lnet router machines that have addresses on both subnet A and on subnet B, the MGS machine has addresses on both subnet A and subnet B, and all the OSS have lnet routing that lets this work. Our world is a happy place. Now, due to other factors, we have to change the MGS subnet B address to instead be on subnet C. Subnet C will be set up to have the usual IP routing to find subnet B, but what will happen to the clients that exist only on subnet B? Is there a way for them to find the MGS at boot time, or are they going to stop working once this network change is effected? Thanks much, bob