dhcpcd-discuss

Re: Tentative global IPv6 addresses with 8.1.4

Roy Marples

Thu Jan 02 11:05:55 2020

On 01/01/2020 13:52, Nico Schottelius wrote:

Update:

On 5.4.7-arch1-1 the address also stays tentative for quite some time
(minutes?) but eventually transits into regular state:

2: wlp0s20f3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
     link/ether 24:ee:9a:54:c3:bf brd ff:ff:ff:ff:ff:ff
     inet6 2a0a:e5c0:10:bee:5fe8:6d2:b19a:3e8f/64 scope global dynamic mngtmpaddr noprefixroute
        valid_lft 86357sec preferred_lft 14357sec
     inet6 fe80::e00d:528:9af3:e20a/64 scope link
        valid_lft forever preferred_lft forever

I wonder if something is broken with the DAD mechanism on these
kernels. I'll try to capture the MLD/icmp6 messages next time I connect
to that network.

I still can't replicate this very easily, but does this patch fix it?
https://roy.marples.name/cgit/dhcpcd.git/commit/?h=dhcpcd-8&id=114870290a8d3d696bc4049c32eef3eed03d6070

Roy

Follow-Ups:
Re: Tentative global IPv6 addresses with 8.1.4Nico Schottelius
References:
Tentative global IPv6 addresses with 8.1.4Steve Hirsch
Re: Tentative global IPv6 addresses with 8.1.4Roy Marples
RE: Tentative global IPv6 addresses with 8.1.4Steve Hirsch
Re: Tentative global IPv6 addresses with 8.1.4Nico Schottelius
Re: Tentative global IPv6 addresses with 8.1.4Nico Schottelius
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