Brother MFC-9325CW - Manual (Page 118)

Firewall settings (For Network users)
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f To add a port enter the information below:
 For network scanning
Choose UDP and enter “54925” in the Specific local ports:.
Click Next.
 For Network PC-Fax
Choose UDP and enter “54926” in the Specific local ports:.
Click Next.
g Choose Allow the connection and click Next.
h Check the applicable items and click Next.