^start of line
\s*a Unicode whitespace character, repeated any number of times
0-9one character from 0 (4810) to 9 (5710)
0-9one character from 0 (4810) to 9 (5710)
\s*a Unicode whitespace character, repeated any number of times
Group action(?P<action>(\S+)) \S+any character that is not Unicode whitespace, repeated at least once
\s*a Unicode whitespace character, repeated any number of times
Group protocol(?P<protocol>(\S+)) \S+any character that is not Unicode whitespace, repeated at least once
\s*a Unicode whitespace character, repeated any number of times
Group source(?P<source>\b(\S+)/(\S+)\b) \ba Unicode word boundary
\S+any character that is not Unicode whitespace, repeated at least once
/the literal / (4710 / 578 / 2F16)
\S+any character that is not Unicode whitespace, repeated at least once
\ba Unicode word boundary
\s*a Unicode whitespace character, repeated any number of times
Group dest(?P<dest>(\S+)) \S+any character that is not Unicode whitespace, repeated at least once
Non-Capturing Group(?: (eq\s(?P<port>(\S+)))?) the literal (3210 / 408 / 2016)
Group 10(eq\s(?P<port>(\S+)))? ?repeats the group contents below at most once:
eqthe literal text eq (case sensitive) \sa Unicode whitespace character
Group port(?P<port>(\S+)) \S+any character that is not Unicode whitespace, repeated at least once
g modifier: global. Finds all matches instead of stopping after the first
m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string