slaac/privacy extensions disable at boottime at linux

Eric Vyncke (evyncke) evyncke at cisco.com
Tue Jun 25 22:20:25 CEST 2013


Thomas,

On my ubuntu, I have a directory  /etc/network/if-pre-up.d containing scripts executed BEFORE the interface comes up.

In the old /etc/network/interfaces you could also apply some pre-up configuration

This may do your trick

-éric

> -----Original Message-----
> From: ipv6-ops-bounces+evyncke=cisco.com at lists.cluenet.de [mailto:ipv6-ops-
> bounces+evyncke=cisco.com at lists.cluenet.de] On Behalf Of Thomas Schäfer
> Sent: mardi 25 juin 2013 05:26
> To: ipv6-ops at lists.cluenet.de
> Subject: slaac/privacy extensions disable at boottime at linux
> 
> Hi,
> 
> more and more linux-distributors switch on privacy extensions by default. In
> my LAN I have router advertisements on because of dynamically configured
> mobile devices. But I also have PCs with static addresses. Unfortunately
> sysctl-rules catch some seconds to late. So the NFS-configuration fails,
> afterwards postfix fails and so on.
> 
> My question is: Is there a kernel boot option to disable SLAAC completely or
> at least the net.ipv6.conf.default.use_tempaddr
> 
> Regards,
> Thomas
> 
> 
> 
> --
> 
> There’s no place like ::1
> 
> Thomas Schäfer (Systemverwaltung)
> Ludwig-Maximilians-Universität
> Centrum für Informations- und Sprachverarbeitung Oettingenstraße 67 Raum
> C109
> 80538 München ☎ +49/89/2180-9706  ℻ +49/89/2180-9701



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