5 "Advanced" networking questions
db at traceroute.dk
Mon Jul 7 08:54:35 PDT 2003
On Mon, 7 Jul 2003 17:33:14 +0200
Toni Andjelkovic <toni at soth.at> wrote:
> On Mon, Jul 07 2003 (01:22:05 +0200), Socketd wrote:
> > 1. Reading "man blackhole" I found that net.inet.udp.blackhole=1
> > will prevent traceroute. Is this only if the host is the end target?
> > or will it simply disable sending an ICMP packet when it get's a
> > packet with ttl=1?
> Look in sys/netinet/udp_usrreq.c. This flag operates on the UDP layer
> and doesn't interfere with TTLs.
Ok, anyway to prevent sending ICMP's when ttl = 0? Or do I need a
Thank you for your reply!
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