---
name: "flood_unreach6"
section: "8"
platform: "linux"
package: "thc-ipv6"
version: "3.8-4"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/flood_unreach6"
---

# flood\_unreach6(8)

## NAME

**flood\_unreach6**

## SYNOPSIS

flood\_unreach6 \[-HFD\] \[-p\|-h\] \[-r\|-R\] interface target

Flood the target with ICMPv6 unreachable packets. -F/-D/-H add fragment/destination/hopbyhop header to bypass simple filters -p/-h    send port/host unreachable instead of network unreachable -r/-R    randomize source from /64 / randomize source completely

## AUTHOR

thc-ipv6 was written by van Hauser \<vh@thc.org\> / THC

The homepage for this toolkit is: https://github.com/vanhauser-thc/thc-ipv6

## COPYRIGHT

flood\_unreach6 3.8 (c) 2020 by van Hauser / THC \<vh@thc.org\> www.github.com/vanhauser-thc/thc-ipv6