Disable sending ICMPV6 redirects on IPV6

Hello,
I try to find out how to disable a Linux machine (acting as a router)
from sending ICMPV6 redirects ;

There is : /proc/sys/net/ipv6/conf/all/accept_redirects
but I cannot find /proc/sys/net/ipv6/conf/all/send_redirects

(In IPV4 there is both /proc/sys/net/ipv4/conf/all/send_redirects and
/proc/sys/net/ipv4/conf/all/accept_redirects)

Maybe it is impossible to disable a Linux machine from sending
ICMPV6 redirects?
Any ideas?

Regards,
Ian

Hello,

ianbrn@gmail.com a écrit :
> I try to find out how to disable a Linux machine (acting as a router)
> from sending ICMPV6 redirects ;
>
> There is : /proc/sys/net/ipv6/conf/all/accept_redirects
> but I cannot find /proc/sys/net/ipv6/conf/all/send_redirects
>
> Maybe it is impossible to disable a Linux machine from sending
> ICMPV6 redirects?

As a last resort, you can drop them with an ip6tables rule :

ip6tables -A OUTPUT -p icmpv6 --icmpv6-type redirect -j DROP