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