https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=245381
Tatsuki Makino <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |[email protected] --- Comment #5 from Tatsuki Makino <[email protected]> --- In layer 4, port 0 cannot be used through the OS programming interface, but if it is constructed as a layer 3 packet, it can be used. This can be denied with ipfw rule. In layer 3, it is unclear how the OS will respond to proto 0, but it seems that by setting ipfw with a default-deny ruleset, the minimum necessary denial is being achieved. However, it seems that we can bypass the input value restrictions and set the IP protocol using the following method, but I do not know what kind of settings are in place internally :) ipfw add count IP from any to any ipfw add count ip from any to any proto IP -- You are receiving this mail because: You are the assignee for the bug.
