FAQ: Why there is port number in the ICMP of firewall’s Session table?

Publication Date:  2012-09-12 Views:  157 Downloads:  0
Issue Description
Use the command “display fire wall session table” check the entry below:
icmp: 162.105.10.22:512 <-- 162.105.10.25:512
From above it can be seen that there is port number 512 in Layer 3 protocol’s ICMP.
Alarm Information
None.
Handling Process
Because there is no conception of port number to ICMP, so the record in ICMP conversation is ICMP ID.
Root Cause
None.
Suggestions
None.

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