C# - How to create an array from an enumerator

In C#, what's the most elegant way to create an array of objects, from an enumerator of objects? e.g. in this case I have an enumerator that can return byte's, so I want to convert this to byte[].

EDIT: Code that creates the enumerator:

IEnumerator<byte> enumerator = updDnsPacket.GetEnumerator();