My first reaction to this is that only helps by making the session ID 4 bytes larger (and granted more combinations to try).

But maybe I can use that in some way. If the IP contained in the session ID doesn't match the client IP, then I can immediately drop through the IP block without bothering to check for a valid session id. Maybe save a session id lookup step before dropping the client. That's good!

It doesn't do anything to prevent malicious users from inside the routed network but it looks like this is a risk I may have to live with. Maybe half a solution is better than no solution.

In reply to Re^4: Identifying clients by ruzam
in thread Identifying clients by ruzam

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