https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204593
Bug ID: 204593
Summary: Add a sysctl to enable display of IPv4 ICMP handling
in the kernel
Product: Base System
Version: 10.2-STABLE
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Created attachment 163185
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=163185&action=edit
10.2-stable unified diff for /usr/src/sys/netinet/ip_icmp.c
Currently it only possible to follow IPv4 ICMP handling in/of the kernel by
recompiling the kernel and adding a define for "ICMPPRINTFS" to enable kernel
console messages for ICMP handling in /usr/src/sys/netinet/ip_icmp.c.
The attached patch converts this into a sysctl variable
"net.inet.icmp.log_icmps" to enable/disable debugging output without
recompilation.
As an add-on, the FIB number is displayed for rx'd/tx'd ICMP packets.
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