User Documentation

Version 1.2 / August 2020 Page 88 / 102
►Enter wild character * for source and destination MAC
addresses.
►Select protocol IPv4 to be checked inside of the passing
Ethernet frames.
►Click Next.
►Now define the criteria for investigating an IPv4 packet
(check for PTP communication UDP/319).
Note: Use always wild character * for source port because
it will be created dynamically by the sender (to be used for
unique re-addressing of an answer packet by a recipient).
►Click ‘Next’.
►Select auto for Connection control.
(Packet filter acts as a stateful inspection firewall and rec-
ognizes/allows automatically answers based on an initiated
request).
►Click ‘Next’.
►No signal check and setting.
►Click ‘Next’.
►Now select action (allow) related to the previous defined
rules.
►Add a name for this rule (here PTP_L2_Allow319).
►Click ‘Next’.
Now the new rule PTP_L2_Allow319 is defined inside of
the rule-set container. We need to add another rule to al-
low UDP and port 320 for PTP.
►Click ‘Add’ to add a new rule.