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      1 This is used to modify the Hop Limit field in IPv6 header. The Hop Limit field
      2 is similar to what is known as TTL value in IPv4.  Setting or incrementing the
      3 Hop Limit field can potentially be very dangerous, so it should be avoided at
      4 any cost. This target is only valid in
      5 .B mangle
      6 table.
      7 .PP
      8 .B Don't ever set or increment the value on packets that leave your local network!
      9 .TP
     10 \fB\-\-hl\-set\fP \fIvalue\fP
     11 Set the Hop Limit to `value'.
     12 .TP
     13 \fB\-\-hl\-dec\fP \fIvalue\fP
     14 Decrement the Hop Limit `value' times.
     15 .TP
     16 \fB\-\-hl\-inc\fP \fIvalue\fP
     17 Increment the Hop Limit `value' times.
     18