One of our readers is reporting a fairly recent increase in ICMP packets hitting his firewall. If you're seeing the same we'd like some data:

• on the importance and timeframe of the increase;
• the type of ICMP packets you're receiving;
• some idea of how it correlates (sweeping your address range, just hitting one IP, coming from all over, coming from specific hosts, ...);
• if possible a small sample of some out of the ordinary packet captures.
  

As always you can upload your results through our contact form.

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Swa Frantzen -- Section 66