Auto-neg, as someone already mentioned. MD5 makes BGP peering sessions more secure. There was a nice recent NANOG rant on that one.
One of my favorites from corporate america; if you run one application
on a server you can put in that apps port in the firewall and block
everything else and the server will be happy. Evidently folks don't
know servers need to do things like make DNS queries, have remote access
to them, contact domain controllers or software update servers. *sigh*
--
Leo Bicknell - bickn...@ufp.org - CCIE 3440
PGP keys at http://www.ufp.org/~bicknell/
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