Forgotten Security Part II: Routing, the Hole in the Wall

Many companies have routing where the path that data takes to arrive at a workstation differs from the path that the data takes back to the originator. If one of these paths goes through a connection tracking firewall while the other path does not, the packets will be blocked. This is because the firewall sees a return packet for a connection, but has no record of the initiating packet. There is a main LAN shown as which is connected to a segment via a router. The remote LAN,, could be a branch office or maybe just a segment off the main network.

Provided by: Network Box Topic: Security Date Added: Jan 2011 Format: PDF

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