"hl" hoplimit/TTL match support
modulename: xt_hl.ko
configname: CONFIG_NETFILTER_XT_MATCH_HL
Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>Core Netfilter Configuration
└─>"hl" hoplimit/TTL match support
In linux kernel since version 2.6.30 (release Date: 2009-06-09)
HL matching allows you to match packets based on the hoplimit
in the IPv6 header, or the time-to-live field in the IPv4
header of the packet.
in the IPv6 header, or the time-to-live field in the IPv4
header of the packet.