Canon imageRunner C5051 Getting Started page 130

If you want to use proxy authentication, press [Set Authentication] → [On] for <Use Proxy Auth.> → enter the user name to use for
proxy authentication in [User], and the password to use for proxy authentication in [Password].
If you are using the Direct Print Kit (for PDF/XPS), you can print a file in the PDF, XPS, or PS format by specifying its URL using
the Remote UI. To print a file by specifying its URL using the Remote UI, you need to specify the proxy settings suitable for your
environment. (Set in this step.)
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On the Network screen, press [Firewall Settings] → [Mac Address Filter] → specify the following .
By specifying the settings described below, you can filter received packets and transmitted packets using MAC (Media Access Control)
addresses and improve security when sending and receiving data. The possibility of a third person gaining unauthorized access can
be reduced by configuring the settings for [MAC Address Filter] in accordance with the environment you are using.
If you want to deny data transmission/reception between a device with a specified MAC address and the machine, set the default
policy for the transmission or reception filter so as to allow transmission/reception, and enter the MAC address to be denied. Data
transmission/reception between the device having the specified MAC address and the machine will be disabled.
If you want to enable data transmission/reception only with a device having a specified MAC address, set the default policy for the
transmission or reception filter so as to deny transmission/reception, and enter the MAC address to be allowed. Data transmission/
reception will be enabled only between the device having the specified MAC address and the machine.
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Up to 100 MAC addresses can be specified.
If you want to deny transmission/reception of data with the device having the specified MAC address:
☐ Press [Send Filter] or [Receive Filter] → set <Use Filter> to 'On' .
☐ Set < Default Policy > to [Allow].
☐ Press [Register] → set the MAC address for which data transmission/reception is to be denied.
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Protocol Settings