nf_conntrack: automatic helper assignment is deprecated...

Questions about Wi-Fi and other network devices, file sharing, firewalls, connection sharing etc
Forum rules
Before you post read how to get help. Topics in this forum are automatically closed 6 months after creation.
Locked
littlehuman
Level 1
Level 1
Posts: 48
Joined: Sun Jan 07, 2018 7:41 pm

nf_conntrack: automatic helper assignment is deprecated...

Post by littlehuman »

Hello there,

Maybe not an issue but just want to know more about this.

I often see this in the syslog of my laptop :
Feb 19 22:00:57 spinoza kernel: [...] nf_conntrack: automatic helper assignment is deprecated
and it will be removed soon.Use the iptables CT target to attach helpers instead.


It has Linux Mint 18.3 Sylvia 64 bits installed, using kernel 4.4.0-112-generic
Nothing special at the network level, except that I use dnscrypt-proxy.
UFW is enabled too.
Wifi connection.

What does this entry mean, should I ignore it or is there something to fix ?
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
Vs lbh nfxrq Oehpr Fpuarvre gb qrpelcg guvf, ur'q pehfu lbhe fxhyy jvgu uvf ynhtu.
User avatar
catweazel
Level 19
Level 19
Posts: 9763
Joined: Fri Oct 12, 2012 9:44 pm
Location: Australian Antarctic Territory

Re: nf_conntrack: automatic helper assignment is deprecated...

Post by catweazel »

Please post the output of this terminal command:

Code: Select all

inxi -Fxz
Enclose the results in code markers, which you can select from the mini toolbar above the textbox where you type your reply.
"There is, ultimately, only one truth -- cogito, ergo sum -- everything else is an assumption." - Me, my swansong.
littlehuman
Level 1
Level 1
Posts: 48
Joined: Sun Jan 07, 2018 7:41 pm

Re: nf_conntrack: automatic helper assignment is deprecated...

Post by littlehuman »

Here it is.

Code: Select all

System:    Host: spinoza Kernel: 4.4.0-112-generic x86_64 (64 bit gcc: 5.4.0)
           Desktop: Cinnamon 3.6.7 (Gtk 3.18.9-1ubuntu3.3) Distro: Linux Mint 18.3 Sylvia
(...)
Network:   Card-1: Intel Centrino Advanced-N 6235 driver: iwlwifi bus-ID: 03:00.0
           IF: wlp3s0 state: up mac: <filter>
           Card-2: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet
           driver: atl1c v: 1.0.1.1-NAPI port: d000 bus-ID: 04:00.0
           IF: enp4s0 state: down mac: <filter>
(...)
P.S. BIOS version is the latest for this model, selected microcode is intel-microcode 3.20180108.0+really20170707ubuntu16.04.1
Last edited by littlehuman on Mon Mar 05, 2018 9:46 pm, edited 1 time in total.
Vs lbh nfxrq Oehpr Fpuarvre gb qrpelcg guvf, ur'q pehfu lbhe fxhyy jvgu uvf ynhtu.
WharfRat

Re: nf_conntrack: automatic helper assignment is deprecated...

Post by WharfRat »

littlehuman,

That's just a netfilter connection tracking warning message that some rule is going to be eliminated and the CT target should be used instead.

Most likely it's come rule that's been set with UFW and it will require a modification.

In the man page
The CT target sets parameters for a packet or its associated connection. The target attaches a "template" connection tracking entry to the packet, which is then used by the conntrack core when initializing a new ct entry. This target is thus only valid in the "raw" table.
So basically it's out of your hands.

There's an informative read here http://home.regit.org/wp-content/upload ... lpers.html
littlehuman
Level 1
Level 1
Posts: 48
Joined: Sun Jan 07, 2018 7:41 pm

Re: nf_conntrack: automatic helper assignment is deprecated...

Post by littlehuman »

Thanks for the useful info
Vs lbh nfxrq Oehpr Fpuarvre gb qrpelcg guvf, ur'q pehfu lbhe fxhyy jvgu uvf ynhtu.
Locked

Return to “Networking”