Inline IP_Forwarding and other simple questions?

["mdpeters" <michael.peters () lazarusalliance com>]

Do I need to enable ip_forwarding on for the transparent bridge to work? 

Do I need to install ebtables for inline to disrupt traffic or is iptables, libnet, and libpcap all that I might need? 
It is my impression that iptables just firewalls with static rules.

Do the snort rules running on the transparent inline snort box reset the traffic that passes through using inline?

Best regards,

Michael