Re: Issues during assigning addresses on point to point interfaces

[Nicolas Dichtel]

Le 25/06/2021 à 17:27, Pali Rohár a écrit :
[snip]
>>> Hello Nicolas!
>>>
>>> See my original email where I put also rtnetlink packets (how strace see
>>> them). Seems that there is a bug in handling them (or bug in iproute2)
>>> as setting just peer (remote) IPv6 address is ignored:
>>> https://lore.kernel.org/netdev/20210606151008.7dwx5ukrlvxt4t3k@pali/
>>>
>>> Do you have any idea if this is affected by that "issue in the uAPI"?
>>> And what is the way how to fix it?
>> What about forcing IFA_LOCAL address to :: in your case?
> 
> It does not work. ip address returns error:
> 
>     $ sudo ip address add :: peer fe80::8 dev ppp0
>     RTNETLINK answers: Cannot assign requested address
So this trick could probably be used to handle your case, without breaking
anything, as it's not a valid command today.


Regards,
Nicolas