problem with ipv4 and ipv6 rules on one device

[PhilPhonic]

Hey there,

if I try to add rules for ipv4 and ipv6 on the same interface I get an error.
Here is what I did:

tcset enp2s0 --direction incoming --delay 1ms --dst-port 80
tcset enp2s0 --ipv6 --direction incoming --delay 1ms --dst-port 80

This leads to:

[WARNING] failed to add ip link: ip link already exists. try to execute with:
  (a) --overwrite option if you want to overwrite the existing rule.
  (b) --add option if you want to add a new rule in addition to the existing rules.
  (c) --change option if you want to change the existing rule parameter.
[WARNING] failed to '/sbin/tc qdisc add': ingress qdisc already exists. try to execute with:
  (a) --overwrite option if you want to overwrite the existing rule.
  (b) --add option if you want to add a new rule in addition to the existing rules.
  (c) --change option if you want to change the existing rule parameter.
[WARNING] failed to '/sbin/tc qdisc add': qdisc already exists (dev ifb6711, handle=1a37:, algo=htb). try to execute with:
  (a) --overwrite option if you want to overwrite the existing rule.
  (b) --add option if you want to add a new rule in addition to the existing rules.
  (c) --change option if you want to change the existing rule parameter.

So i tried the --add parameter with the second tcset command:

tcdel --all enp2s0
tcset enp2s0 --direction incoming --delay 1ms --dst-port 80
tcset enp2s0 --add --ipv6 --direction incoming --delay 1ms --dst-port 80

This leads to:

[WARNING] command='/sbin/tc filter add dev ifb6711 protocol ipv6 parent 1a37: prio 2 u32 match ip6 dst ::/0 match ip6 src ::/0 match ip6 dport 80 0xffff flowid 1a37:3', returncode=2, stderr='RTNETLINK answers: Invalid argument\nWe have an error talking to the kernel\n'

tcconfig version:

# tcset --version
tcset 0.25.1

os:

# lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description:    Debian GNU/Linux 9.12 (stretch)
Release:        9.12
Codename:       stretch

kernel:

# uname -r
4.9.0-12-amd64

Any ideas?

[thombashi]

@PhilPhonic
Thank you for your report.

I had fixed the issue at tcconfig 0.25.2.
Please try to upgrade the package.

[PhilPhonic]

@thombashi thanks for your quick response.
it works now