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--- doc:appunti:net:ipv6 [2017/11/15 18:40] – [IPv6 su PPP] niccolo
+++ doc:appunti:net:ipv6 [2019/08/26 11:06] (current) – [Configurazione automatica] niccolo
@@ Line 49: / Line 49: @@
 Quindi se esiste un host che annuncia la configurazione IPv6 (ad esempio un host GNU/Linux che esegue **radvd**, //Router Advertisement Daemon//), gli host nella stessa LAN si assegnano automaticamente un indirizzo IPv6 valido (ma non il default gateway).
+Per modificare uno di quei parametri creare un file **/etc/sysctl.d/90-local-ipv6.conf** con ad esempio:
+<file>
+net.ipv6.conf.eth1.accept_ra=0
+</file>
+Per rendere immediatamente attive le modifiche:
+<code>
+cat /proc/sys/net/ipv6/conf/eth1/accept_ra
+sysctl --system
+cat /proc/sys/net/ipv6/conf/eth1/accept_ra
+</code>
 ===== Configurazione manuale =====
@@ Line 304: / Line 320: @@
 sysctl -w net.ipv6.conf.ppp0.accept_ra=2
 </code>
+=== Riferimenti web ===
+Vedere questo post: **[[http://strugglers.net/~andy/blog/2011/09/04/linux-ipv6-router-advertisements-and-forwarding/|Linux, IPv6, router advertisements and forwarding]]**, nel quale si legge:
+//By default, a Linux host on an IPv6 network will listen for and
+solicit router advertisements in order to choose an IPv6 address
+for itself and to set up its default route. This is referred to
+as stateless address autoconfiguration (SLAAC).//
+//In this context, what makes the difference between router or not
+are the settings of the /proc/sys/net/ipv6/conf/*/forwarding
+files (or the net.ipv6.conf.*.forwarding sysctl). If you turn
+your host into a router by setting one of those to “1”, you may
+find that your host removes any IPv6 address and default route
+it learnt via SLAAC.//