| 1234567891011121314151617181920 | # IRC - Internet Relay Chat - RFC 1459# Pattern quality: good veryfast## Usually runs on port 6666 or 6667# Note that chat traffic runs on these ports, but IRC-DCC traffic (which# can use much more bandwidth) uses a dynamically assigned port, so you # must have the IRC connection tracking module in your kernel to classify# this.## This pattern has been tested and is believed to work well.  If it does not# work for you, or you believe it could be improved, please post to # l7-filter-developers@lists.sf.net .  This list may be subscribed to at# http://lists.sourceforge.net/lists/listinfo/l7-filter-developersirc# First thing that happens is that the client sends NICK and USER, in # either order.  This allows MIRC color codes (\x02-\x0d instead of# \x09-\x0d).^(nick[\x09-\x0d -~]*user[\x09-\x0d -~]*:|user[\x09-\x0d -~]*:[\x02-\x0d -~]*nick[\x09-\x0d -~]*\x0d\x0a)
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