ADFS: How would one include over 600 IP addresses in a claim rule?

Is there an effective method for doing this with "http://schemas.microsoft.com/2012/01/requestcontext/claims/x-ms-forwarded-client-ip"?

What would the best syntax be?  I would like to wrap PowerShell around it so it will be repeatable should the list change by 20 or 30 IP addresses for example.

I have seen this syntax but am unsure which is "best"

c2:[Type == "http://schemas.microsoft.com/2012/01/requestcontext/claims/x-ms-forwarded-client-ip",
Value =~ "^(bxxx.xxx.xxx.xxx|xxx.xxx.xxx.xxxb)"]

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Thank you.
LVL 8
K BAsked:
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David Johnson, CD, MVPOwnerCommented:
use regex rules in your adfs setings

Please see if this article applies https://blogs.technet.microsoft.com/askds/2012/06/26/an-adfs-claims-rules-adventure/
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K BAuthor Commented:
I guess what I am asking is do you shove all 600 IP addresses in one claim rule?

Also is this something you have done before.
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David Johnson, CD, MVPOwnerCommented:
can't you use an ip address regex group?
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K BAuthor Commented:
these are 600 ips that are not contiguous .. also they may come and go as the locations close and open
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K BAuthor Commented:
Would still like to hear if anyone has done this from a DB or a list that changes regularly.
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