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(parent: d51135c) | patch
Add support for stealth forwarding (forwarding packets without touching
authordes <des@FreeBSD.org>
Mon, 22 Feb 1999 18:19:57 +0000 (18:19 +0000)
committerdes <des@FreeBSD.org>
Mon, 22 Feb 1999 18:19:57 +0000 (18:19 +0000)
commit2f3574b0d4cb7a8667a429bba306179dc71ce610
treebde08a569ee0edca7aa65ffd0b9a03adca780034tree | snapshot
parentd51135c0c3ce43b173e455e0e5a42cf324e3e282commit | diff
Add support for stealth forwarding (forwarding packets without touching
their ttl). This can be used - in combination with the proper ipfw
incantations - to make a firewall or router invisible to traceroute
and other exploration tools.

This behaviour is controlled by a sysctl variable (net.inet.ip.stealth)
and hidden behind a kernel option (IPSTEALTH).

Reviewed by: eivind, bde
sys/conf/NOTES diff | blob | history
sys/conf/options diff | blob | history
sys/i386/conf/LINT diff | blob | history
sys/i386/conf/NOTES diff | blob | history
sys/netinet/ip_input.c diff | blob | history
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