s modifier: single line. Allows a dot to match line terminators
wlan the literal text wlan (case sensitive) .+?any character, repeated at least once
\sany whitespace character
.+?any character, repeated at least once
dot1 authent the literal text dot1 authent (case sensitive) .+?any character, repeated at least once
\na line-feed (newline) character (ASCII 10)