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I could be mistaken somewhere somehow, but I think the problem with a test on LinuxONE might be a misconfiguration on the machine. I'm not sure who to ping about this. Maybe @mhdawson knows?
IPv6 link-local addresses start with fe80:.
Below is the output of os.networkInterfaces() on that machine. As you can see, the lo interface does not have a link-local address. I believe this is a violation of RFC 4291 Section 2.8. (Wikipedia has it in more plain language: "Unlike IPv4, IPv6 requires a link-local address on every network interface on which the IPv6 protocol is enabled, even when routable addresses are also assigned.")
I could be mistaken somewhere somehow, but I think the problem with a test on LinuxONE might be a misconfiguration on the machine. I'm not sure who to ping about this. Maybe @mhdawson knows?
IPv6 link-local addresses start with
fe80:.Below is the output of
os.networkInterfaces()on that machine. As you can see, thelointerface does not have a link-local address. I believe this is a violation of RFC 4291 Section 2.8. (Wikipedia has it in more plain language: "Unlike IPv4, IPv6 requires a link-local address on every network interface on which the IPv6 protocol is enabled, even when routable addresses are also assigned."){ lo: [ { address: '127.0.0.1', netmask: '255.0.0.0', family: 'IPv4', mac: '00:00:00:00:00:00', internal: true, cidr: '127.0.0.1/8' }, { address: '::1', netmask: 'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff', family: 'IPv6', mac: '00:00:00:00:00:00', internal: true, cidr: '::1/128', scopeid: 0 } ], 'enccw0.0.1000': [ { address: '148.100.86.21', netmask: '255.255.254.0', family: 'IPv4', mac: '02:c1:21:0e:b0:cb', internal: false, cidr: '148.100.86.21/23' }, { address: '2620:91:0:649:c1:21ff:fe0e:b0cb', netmask: 'ffff:ffff:ffff:ffff::', family: 'IPv6', mac: '02:c1:21:0e:b0:cb', internal: false, cidr: '2620:91:0:649:c1:21ff:fe0e:b0cb/64', scopeid: 0 }, { address: 'fe80::c1:21ff:fe0e:b0cb', netmask: 'ffff:ffff:ffff:ffff::', family: 'IPv6', mac: '02:c1:21:0e:b0:cb', internal: false, cidr: 'fe80::c1:21ff:fe0e:b0cb/64', scopeid: 2 } ] }Originally posted by @Trott in nodejs/node#14500 (comment)