diff --git a/pkgs/tools/networking/gen6dns/default.nix b/pkgs/tools/networking/gen6dns/default.nix
new file mode 100644
index 000000000000..6f020c2a6636
--- /dev/null
+++ b/pkgs/tools/networking/gen6dns/default.nix
@@ -0,0 +1,31 @@
+{ lib, stdenv, fetchurl, installShellFiles }:
+
+stdenv.mkDerivation rec {
+  pname = "gen6dns";
+  version = "1.3";
+
+  src = fetchurl {
+    url = "https://www.hznet.de/tools/gen6dns-${version}.tar.gz";
+    hash = "sha256-MhYfgzbGPmrhPx89EpObrEkxaII7uz4TbWXeEGF7Xws=";
+  };
+
+  nativeBuildInputs = [ installShellFiles ];
+
+  preInstall = ''
+    mkdir -p $out/bin
+  '';
+
+  postInstall = ''
+    installManPage gen6dns.1
+  '';
+
+  makeFlags = [ "INSTALL_DIR=$(out)/bin" ];
+
+  meta = with lib; {
+    description = "Tool to generate static DNS records (AAAA and PTR) for hosts using Stateless Address Autoconfig (SLAAC)";
+    homepage = "https://www.hznet.de/tools.html#gen6dns";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ majiir ];
+    platforms = platforms.unix;
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8e73851eb2c8..52b8cf56371d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1269,6 +1269,8 @@ with pkgs;
 
   gam = callPackage ../tools/admin/gam { };
 
+  gen6dns = callPackage ../tools/networking/gen6dns { };
+
   gfshare = callPackage ../tools/security/gfshare { };
 
   gh-cal = callPackage ../tools/misc/gh-cal {