Thank you for the information.

Thanks for the information aobut Deep Packet Inspection. From what I can gather, its an application layer type of examination. What I am looking for information on is stateful packet inspection which...

This sort of gives the abcs of the tcp handshake, but is vague on what, if anything, is needed to ensure that SPI is protecting the land from the wan....

I have spent several hours reading documentation and searching the internet and I cannot find the information I am looking for. So: 1) I have a new er605 and am wondering what sort of firewall...