Blame extensions/libipt_TTL.man
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This is used to modify the IPv4 TTL header field. The TTL field determines
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how many hops (routers) a packet can traverse until it's time to live is
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exceeded.
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.PP
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Setting or incrementing the TTL field can potentially be very dangerous,
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so it should be avoided at any cost. This target is only valid in
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.B mangle
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table.
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.PP
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.B Don't ever set or increment the value on packets that leave your local network!
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.TP
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\fB\-\-ttl\-set\fP \fIvalue\fP
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Set the TTL value to `value'.
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.TP
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\fB\-\-ttl\-dec\fP \fIvalue\fP
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Decrement the TTL value `value' times.
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.TP
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\fB\-\-ttl\-inc\fP \fIvalue\fP
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Increment the TTL value `value' times.
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