On Saturday 25 May 2019 11:28:58 am Tom H wrote: > Off-list... > > > link/ether 00:1f:c6:62:fc:bb brd ff:ff:ff:ff:ff:ff <--ipv6 crap. > > This isn't related to ipv6. > > "00:1f:c6:62:fc:bb" is the NIC's MAC address. > > "ff:ff:ff:ff:ff:ff" is the NIC's hardware broadcast address. > > ifconfig doesn't expose this but ip does. You can change it with "ip > link set dev ethX broadcast aa:bb:cc:dd:ee:ff" but it'll break ARP > (AFAIK). > > Your "*.disable_ipv6 = 1" sysctl settings'll disable ipv6, if you're > not using NM or systemd-networkd. They only respect their own on/off > ipv6 settings (in fact, I'm not sure that you can disable ipv6 > completely with systemd-networkd; you have to have a link-local ipv6 > address no matter what). > > Regarding some other things in the thread. > > There are two ipv6 variables that can be set to "1" on the kernel > cmdline, "ipv6.disable_ipv6" and "ipv6.disable". > > "ipv6.disable_ipv6=1" disables ipv6 addresses but allows the the > kernel to enable the ipv6 stack/ > > "ipv6.disable=1" disables ipv6 completely and some applications'll > fail in obvious or non-obvious ways. > > With "ipv6.disable_ipv6=1", "/proc/sys/net/ipv6" exists. > > With "ipv6.disable=1", "/proc/sys/net/ipv6" doesn't exist.
Thanks, good info, I'll relay to the amanda list. Unforch, and this machine has been rebooted by hpfax several times since I put all that in /e/sysctl.conf. And a cat of the dozen or so subdirs in /proc/sys/net/ipv6 has all the disable-ipv6's set to 1 right now. Can you explain this? Looks like it worked, but if configure is checking that, its not doing as it should. I still see a yes go by when it checks for ipv6 connectivity. And I just had to reboot, the keyboard died, but its been swapped and the batteries are brand new. But the mouse is still alive. I'm stumped. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene>
