Barabba

Hi, thanks for keep supporting me, sorry for delay on answer, I' really busy at work before the end of the year, few time to play with linux.. I've tried the method: nmcli connection show nmcli connection modify mywifiSSID ipv6.method "disabled" nmcli connection up mywifiSSID cat /proc/sys/net/ipv6/conf/wlan0/disable_ipv6 and it doesn't produce effect, eve if IPv6 is displayed as disabled mpd and node keep using it, horrible. I've tried your second sulution, following the instructions Disabling IPv6 support (Permanently) Disable ipv6 built-in kernel module. 1. Edit /etc/default/grub and append ipv6.disable=1 to GRUB_CMDLINE_LINUX and GRUB_CMDLINE_LINUX_DEFAULT like the following sample: FROM: GRUB_CMDLINE_LINUX_DEFAULT="" GRUB_CMDLINE_LINUX="" TO: GRUB_CMDLINE_LINUX_DEFAULT="ipv6.disable=1" GRUB_CMDLINE_LINUX="ipv6.disable=1" I had no gub file into /etc/default, so I?ve created one and filled it, saved and rebbot, the same problem. as I wrote, I also have net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.lo.disable_ipv6 = 1 net.ipv6.conf.eth0.disable_ipv6 = 1 net.ipv6.conf.wlan0.disable_ipv6 = 1 Without any success. The problem is not the IPv6 address, is the kernel how is built.. I suppose (!) it keeps using it, whatever. Also node JS uses it, it's not a problem of mpd. There is any way to erase the IPV6 support files? Any way to get completely rid of it? I'ts amazing how much it disturbs, I really don't understand how nobody noticed yet these problems, nobody use in thery LAN IPv6 but linux pretend to use it at first, amazing. You can see here how nodejs connect to mpd using the f* IPV6 and use it also for being listening for connections :# root@orangepizero:~/cyp# node . no passwords.json found 1671476385739 ws2mpd attached to a http server { address: '::', family: 'IPv6', port: 8080 } root@orangepizero:~# netstat -tulpn Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1293/sshd: /usr/sbi tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1/init tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN 610/systemd-resolve tcp6 0 0 :::22 :::* LISTEN 1293/sshd: /usr/sbi tcp6 0 0 :::111 :::* LISTEN 1/init tcp6 0 0 :::8080 :::* LISTEN 1782/node udp 0 0 0.0.0.0:5353 0.0.0.0:* 1107/avahi-daemon: udp 0 0 127.0.0.53:53 0.0.0.0:* 610/systemd-resolve udp 0 0 127.0.0.1:323 0.0.0.0:* 1309/chronyd udp 0 0 0.0.0.0:41555 0.0.0.0:* 1107/avahi-daemon: udp 0 0 0.0.0.0:111 0.0.0.0:* 1/init udp6 0 0 :::5353 :::* 1107/avahi-daemon: udp6 0 0 :::41003 :::* 1107/avahi-daemon: udp6 0 0 ::1:323 :::* 1309/chronyd udp6 0 0 :::111 :::* 1/init

Hi mates, thank you for your answers, I've tried also the second methid, there is nothing to do.. I can't bing mpd to port 6600 on IPv4. It keeps loving to bind it to IPv6, even if it is disabled. I really considering this version of kernel is bugged, as for example also the wlan0 interface changes MAC at every boot. It is not normal an user get difficulties on this part, all should be automatic. I've lost some hours and this makes me a bit crazy. If somebody can tell me how to destroy (yes, I want to destroy it) IPv6 then let's have a chance, I don't want it at all. root@orangepizero:~# sysctl --all | grep disable_ipv6 net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.eth0.disable_ipv6 = 0 net.ipv6.conf.lo.disable_ipv6 = 1 net.ipv6.conf.wlan0.disable_ipv6 = 1 root@orangepizero:~# nmcli connection show NAME UUID TYPE DEVICE baklazhan b03dee75-6edf-4420-abca-90ee13cdca3c wifi wlan0 Armbian ethernet 65dbb918-f88a-4bce-94b4-b3fca126a343 ethernet -- Armbian ethernet e4009969-95ff-4a39-b609-914216e329b8 ethernet -- Wired connection 1 05b999ba-a581-3e87-b315-747df8578472 ethernet -- root@orangepizero:~# nmcli connection modify baklazhan ipv6.method "disabled" root@orangepizero:~# nmcli connection up baklazhan Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/3) root@orangepizero:~# sysctl --all | grep disable_ipv6 net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.eth0.disable_ipv6 = 0 net.ipv6.conf.lo.disable_ipv6 = 1 net.ipv6.conf.wlan0.disable_ipv6 = 1 root@orangepizero:~# netstat -tulpn Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN 610/systemd-resolve tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1295/sshd: /usr/sbi tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1/init tcp6 0 0 :::22 :::* LISTEN 1295/sshd: /usr/sbi tcp6 0 0 :::111 :::* LISTEN 1/init udp 0 0 127.0.0.53:53 0.0.0.0:* 610/systemd-resolve udp 0 0 127.0.0.1:323 0.0.0.0:* 1315/chronyd udp 0 0 0.0.0.0:111 0.0.0.0:* 1/init udp 0 0 0.0.0.0:42356 0.0.0.0:* 1106/avahi-daemon: udp 0 0 0.0.0.0:5353 0.0.0.0:* 1106/avahi-daemon: udp6 0 0 :::49214 :::* 1106/avahi-daemon: udp6 0 0 ::1:323 :::* 1315/chronyd udp6 0 0 :::111 :::* 1/init udp6 0 0 :::5353 :::* 1106/avahi-daemon: root@orangepizero:~# mpd Dec 07 23:16 : server_socket: bind to '[::1]:6600' failed (continuing anyway, because binding to '127.0.0.1:6600' succeeded): Failed to bind socket: Cannot assign requested address Dec 07 23:16 : exception: Failed to bind to '0.0.0.0:6600'; Failed to bind socket: Address already in use root@orangepizero:~# netstat -tulpn Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN 610/systemd-resolve tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1295/sshd: /usr/sbi tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1/init tcp6 0 0 :::22 :::* LISTEN 1295/sshd: /usr/sbi tcp6 0 0 :::111 :::* LISTEN 1/init udp 0 0 127.0.0.53:53 0.0.0.0:* 610/systemd-resolve udp 0 0 127.0.0.1:323 0.0.0.0:* 1315/chronyd udp 0 0 0.0.0.0:111 0.0.0.0:* 1/init udp 0 0 0.0.0.0:42356 0.0.0.0:* 1106/avahi-daemon: udp 0 0 0.0.0.0:5353 0.0.0.0:* 1106/avahi-daemon: udp6 0 0 :::49214 :::* 1106/avahi-daemon: udp6 0 0 ::1:323 :::* 1315/chronyd udp6 0 0 :::111 :::* 1/init udp6 0 0 :::5353 :::* 1106/avahi-daemon: root@orangepizero:~#

Thank you my friend, your answer is really precious. Let me comment by order: yes, "sudo sysctl --all | grep disable_ipv6" showed me the specific interfaces wlan0 and eth0 had IPv6 disabled=0, and this is really strange, cause I've checked /etc/sysctl.conf and all is commented out except the 3 lines I worote, to disable IPv6. Where it get that "0" then? No sense, in my opinion this is a bug, and I believe so because use armbian-config and disable the IPv6 doesn't have that real effect. Typing " sudo sysctl -w net.ipv6.conf.wlan0.disable_ipv6=1" gave the result, but when I reboot the devices it forgot about it. So I put those 2 specific interface lines inside sysctl.conf, but it ignores it, it continues to have a 0, crazy. I'll read more your documentation, I still can't get rid of damn IPv6.. And here is painful point, even if I disabled it temporary, I run mpd and I see it doesn't bind the 6600 on IPv4, which is actually free, have a look please: root@orangepizero:~# sysctl --all | grep disable_ipv6 net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.eth0.disable_ipv6 = 0 net.ipv6.conf.lo.disable_ipv6 = 1 net.ipv6.conf.wlan0.disable_ipv6 = 0 root@orangepizero:~# sudo sysctl -w net.ipv6.conf.wlan0.disable_ipv6=1 net.ipv6.conf.wlan0.disable_ipv6 = 1 root@orangepizero:~# sudo sysctl -w net.ipv6.conf.eth0.disable_ipv6=1 net.ipv6.conf.eth0.disable_ipv6 = 1 root@orangepizero:~# sysctl --all | grep disable_ipv6 net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.eth0.disable_ipv6 = 1 net.ipv6.conf.lo.disable_ipv6 = 1 net.ipv6.conf.wlan0.disable_ipv6 = 1 root@orangepizero:~# mpd Dec 05 00:46 : server_socket: bind to '[::1]:6600' failed (continuing anyway, because binding to '127.0.0.1:6600' succeeded): Failed to bind socket: Cannot assign requested address Dec 05 00:46 : exception: Failed to bind to '0.0.0.0:6600'; Failed to bind socket: Address already in use root@orangepizero:~# netstat -tulpn Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1307/sshd: /usr/sbi tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 1/init tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN 610/systemd-resolve tcp6 0 0 :::22 :::* LISTEN 1307/sshd: /usr/sbi tcp6 0 0 :::111 :::* LISTEN 1/init udp 0 0 0.0.0.0:5353 0.0.0.0:* 1105/avahi-daemon: udp 0 0 0.0.0.0:34811 0.0.0.0:* 1105/avahi-daemon: udp 0 0 127.0.0.53:53 0.0.0.0:* 610/systemd-resolve udp 0 0 127.0.0.1:323 0.0.0.0:* 1319/chronyd udp 0 0 0.0.0.0:111 0.0.0.0:* 1/init udp6 0 0 :::5353 :::* 1105/avahi-daemon: udp6 0 0 :::56598 :::* 1105/avahi-daemon: udp6 0 0 ::1:323 :::* 1319/chronyd udp6 0 0 :::111 :::* 1/init root@orangepizero:~# I really don't now how to bind that portm thank you for suggestions, I still experiment and loosing time on something in my opinion should work automatic

Hi mates, unfortunately I've lot of problems with IPv6, the programs I use love to use IPv6 to bind their TCP ports and not IPv4, I suppose this is not up to them but the kernel suggest/force them use it first. How can I get completely rid of IPv6? I want to kill it completely, it doesn't matter for me to enable it in future. I've disabled using armbian-config and checked /etc/sysctl.conf, there are these lines: net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.lo.disable_ipv6 = 1 but thy don't have affect. Maybe this is a bug of armbian? I suppose so.. Thanks for support

There is another topic about that, with the last kernel the problem appeared, nobody had found a solution for that. I hope the developers are warned about this problem. By now I only can see the option to define a static IP address

Hi, I've tried the solutions above, they change MAC but it's not possibile more to connect. I really hope somebody can realase a fix soon. Are the developers correctly informed about this problem? By now the only chance is to assign a static IP adress