I am using ovf template to create an ova , while deploying ova user first select the network type (either ipv4/ipv6) and then fills the values of IP, netmask and other details. I want to set the default value of optional dns as 0.0.0.0 for ipv4 case and similarly ::0 for v6 case but can't find how to write this logic in ovf template.
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