Forest Level Trust to limited number of DC's

I need to establish a 1-way forest level trust between 2 forests across firewalls. The source forest has a single domain with 13 domain controllers. Is it possible to limit the trust communication to only 2 domain controllers in the source
domain or do I need to open up the required ports from the target domain controllers to all the DC's in the source forest?

Hi,
Based on my understanding of forest trust, if you create a one-way, forest trust between forest A (the trusted forest) and forest B (the trusting forest), members of forest A can access resources located in forest B, but members of forest B cannot access resources
located in forest A using the same trust. There is no limitation for the number of DCs.
In addition,for the ports used by trusts, you can refer to the link below:
How Domain and Forest Trusts Work
Best regards,
Susie

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Forest Level Trust to limited number of DC's

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