Ipv6 neighbor limit

[Cristian Cardoso]

Hi
I don't know if that is it. I am trying to find out if there are any
limits for ipv6 neighbors in the kernel, as soon I will go over 4000
servers below my IPv6 router.
In Juniper (which is a FreeBSD) I can set ndp6-max-cache, for example,
to support more ipv6 neighbors.

Em qui., 3 de set. de 2020 às 09:48, Hans Petter Selasky
<hps at selasky.org> escreveu:
>
> On 2020-09-03 14:34, Cristian Cardoso wrote:
> > Hi
> > Would anyone know if there is any limit in the FreeBSD kernel for IPv6
> > neighbors? I checked the ndp documentation and found nothing, looking
> > at the return of the sysctl command I also did not find anything
> > explicit.
> >
>
> Hi,
>
> There is something called:
>
> sys/netinet/in.h:#define        IP_MAX_MEMBERSHIPS      4095
> sys/netinet6/in6.h:#define      IPV6_MAX_MEMBERSHIPS    4095
>
> Is this what you are looking for?
>
> --HPS