Function of Inbound and Outbound Filter n RAS packet filters

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

I need a good description, on when to use Inbound Filter ou Outbound Filter
on a Interface. Someone can send me some link or explain?

We can use packet filter on 4 points:
Interface "A" Inbound
Interface "A" Oubound
Interface "B" Inbound
Interface "B" Oubound

I know, that we need to focus to filter the packet after routing, to
minimize cpu usage on a packet that will be filtered out, but i have some
problems with the concept of Inbound and Outbound filters

Example:

A filter: 192.168.75.1/255.255.255.255 (Net A) does NOT send packtes to
192.168.100.1/255.255.255.255 (Net B) on Port 80

Wich is the best interface(s) to put the filter?
 
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