TC-CONNMARK(8)

💖 TC-CONNMARK(8) 💖

okay bestie, this is the manual page for the connmark retriever action in tc(8). it's giving netfilter magic ✨

🌸 NAME 🌸

connmark - netfilter connmark retriever action

🎀 SYNOPSIS 🎀

tc ... action connmark [ zone u16_zone_index ] [ CONTROL ] [ index
        u32_index ]

CONTROL := { reclassify | pipe | drop | continue | ok }

🦋 DESCRIPTION 🦋

okay so the connmark action basically takes the connection's mark value and restores it into the packet's fwmark. no cap, it's a whole glow-up for your packets 🫶

👑 OPTIONS 👑

• zone u16_zone_index — this one lets you pick the conntrack zone when you're doing conntrack lookups for packets. u16_zone_index is a 16bit unsigned decimal value, so keep it in that range 🍓
• CONTROL — this is how the packet keeps going after the action runs. literally the plot twist section 💅
  • reclassify — restarts classification by jumping back to the first filter attached to this action's parent. full rewind energy ⏪
  • pipe — continues with the next action. this is the default, so if you don't pick anything, this is what happens 💜
  • drop / shot — the packet gets dropped and no further actions run. bye bye packet 💀
  • continue — continues classification with the next filter in line ✨
  • pass — returns to the calling qdisc for packet processing. this ends the classification process, so it's the end of the road 🌈
• index u32_index — gives this action an index so you can identify it in later commands. u32_index is a 32bit unsigned decimal value. it's your action's name tag 🧚

🌈 SEE ALSO 🌈

• tc(8), obviously 🫶

okay that's the whole tea 💅 iproute2 · 11 Jan 2016, slay forever periodt 🌸💖