Re: additional routes in route announcement
Hello Marc,
Marc Haber a écrit :
>
> on my router, I have radvd 1.9.1 configured as follows:
>
> |interface int182 {
> | AdvSendAdvert on;
> | prefix 2a01:238:4071:3282::/64 {
> | DeprecatePrefix on;
> | };
> | route 2000::/3 {
> | AdvRoutePreference high;
> | RemoveRoute on;
> | };
> | RDNSS 2a01:238:4071:3281::35:100 2a01:238:4071:328e::35:100 {
> | };
> | DNSSL zugschlus.de ka51.zugschlus.de {
> | };
> |};
(...)
> The Linux clients on this link learn the Prefix, the default route,
> the DNS servers and the DNS search list. But they do ignore the
> additional roue.
>
> RFC4191 is from 2005 which is a rather new concept. But it looks like
> Linux implements the client side; IPV6_ROUTE_INFO is switched in my
> kernels. Do I need to activate acceptance of additional routes via
> command line option, or sysctl, or /proc/sys/somewhere, or why is it
> not working?
You may need to tune the sysctl accept_ra_rt_info_max_plen.
Cf. <https://www.kernel.org/doc/Documentation/networking/ip-sysctl.txt>
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