How can I cross check a large list of server ip and netmask addresses against a large list of VLAN addresses?

Not being hot on networking, as is usual my boss gave me this task.
I have a large number of inventorized server addresses and another list of vlan addresses, each list has their netmasks. I need to cross check the list of servers addresses against the VLAN addresses to determine which of the servers are in the VLAN.
Can anyone help me out with a script that I can use?
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Todd MummertCommented:

examples of the lists you're using?  there's multiple ways to express netmasks and subnets

stmpunixAuthor Commented:
Apologies, the lists are in the following notation.
SERVER List or
To say that I am confused with this is an understatement.
is this the server or the VLAN list?
stmpunixAuthor Commented:
I now think I ought to get away with just cross checking the entries with the DMZ list entries
If the sever entry appears in the DMZ then its in the DMZ. I was thinking that this would only require a awk script with an "if" statement to achive. I am going down these lines.  

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