Brother DCP-8155DN - Manual (Page 140)

Firewall settings (For Network users)
132
7
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.
i Enter any description in Name: (for example “Brother Scanner” or “Brother PC-Fax”) and click Finish.