I am curious about the following:
If I do 'show run' on my 4507, I see no access-lists. Then if I do 'show access-list' I see some access-lists such as the one show below. Just wanted to confirm this is perhaps a system generated access-list and it is necessary or OK to leave it?
Extended MAC access list system-cpp-dot1x
permit any host 0180.c200.0003
this is related to control plane policing CPP a security feature to protect main cpu from denial of service attacks.
Hope to help