pb fingerprint icmp on netfilter/linux
rmkml at free.fr
Mon Nov 28 10:16:34 CET 2005
I have a little pb, Im received icmp ping echo request,
normaly echo request are type 8 and code 0,
but this echo request are type 8 and code 19 !
my iptables rules is :
iptables -A INPUT -j ACCEPT -p icmp --icmp-type echo-request
maybe add check code on netfilter ?
another question, but this is not good list, but send my question,
why linux kernel 2.6.7 (my test), accept and reply type 0 code 19 ?
(code 19 is unknown)
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