Doing a threat-risk on pix-pix LAN based failover with authentication and stateful options. On the failover LAN link itself I'm seeing EGP(8) and SCSP(105) unicast traffic whilst on the actual failover interfaces I only see SCSP. This makes sense given that the protocol 8 traffic is supposedly the session state information. What I'm wondering is what type of packet authentication is used - is it just md5 checksuming, and is the authentication also applied to the prot 8 traffic as well as the SCSP?