Why people like social on Fackbook? I asked my friend.
Q: hey, my co-worker wants to know, why people like facebook more than others, like QQ, myspace, etc.
A: cuz everyone is using them, lol
Q: so, why everyone using it? more fancy?
A: easier to communicate and share, i guess. and you can pick whatever you want to see.
Q: but why I don’t login so often?
A: cuz you are too busy, facebook is for the bored office dudes like me.
CBAC is the upgrade version of flexible access control. Since access list is not stateful control, which means, if very strict access list applied in Outside interface for inbound traffic, most of traffic initialized from Inside subnet will be blocked. CBAC help us to inspect specified outgress traffic and put state in the state table. When the traffic comes back, the Outside interface won’t block them out.
However, the interesting problem is, if the traffic initilized from local router, the inspection won’t take effect. Like we want to capture transit package by issue “no ip route-cache”, we need to add “router-traffic” option when define CBAC.
ip inspect name INSIDE_OUT tcp router-traffic
First time I realize it is the most beautiful art in the world. It’s really touched.
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