netdev - PtoP IPv6 LL address with prefix 128 ?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <0f7739066d4f2ab0fbd15e019d4f42cff5a12cdd.camel@infinera.com>
Date:   Tue, 19 Nov 2019 10:04:15 +0000
From:   Joakim Tjernlund <Joakim.Tjernlund@...inera.com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: PtoP IPv6 LL address with prefix 128 ?

In IPv4 is is common to use a /32 mask for PtoP IP addresses(aka unnumbered)
Trying to do the same for PtoP IPv6 LL address /128 does not work, OSPF stops
forming neighbours over such links, why?
Is there a fundamental difference between IPv4 and IPv6 in this case?

Also, I note I cannot telnet/ssh (Unable to connect to remote host: Invalid argument)
to a neighbour using its LL address without also specifying the interface(LL address%eth0).
Is there a knob around this?

 Jocke