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Andrei Borzenkov wrote:
01.02.2020 11:19, Per Jessen пишет:
James Knott wrote:
On 2020-01-31 09:33 AM, Per Jessen wrote:
James Knott wrote:
As I mentioned, there is also a /128 address, which is pretty much useless on a computer, though often used on routers. I don't see one of those: (a 15.1 desktop machine)
This is with 15.0 on my notebook: eth0:
mtu 1500 state UP qlen 1000 inet6 2607:f798:804:90:b455:3be6:1e3a:9173/128 scope global noprefixroute dynamic I expect it is your router that hands it out - dunno why.
RFC8415 (DHCPv6):
IPv6-address An IPv6 address. A client MUST NOT form an implicit prefix with a length other than 128 for this address. A 16-octet field.
So prefix 128 on address assigned by DHCPv6 is absolutely correct.
We use dhcpv6 too, I have never seen any such /128 addresses assigned. I saw some mention of the radvd 'AdvOnLink' option - it is on by default, but when I switched it off and rebooted a machine, I _did_ see such a /128 prefix. There is some relation, I'm just not sure what it is. -- Per Jessen, Zürich (13.9°C) http://www.dns24.ch/ - your free DNS host, made in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org