Alan Cox (
Fri, 16 Apr 1999 22:12:26 +0100 (BST)

> I remember the old IP_MAX_MEMBERSHIPS variable in <linux/in.h> under the
> 2.0 kernels. Under 2.2.5 I think it's been changed to
> NET_IPV4_IGMP_MAX_MEMBERSHIPS in <linux/sysctl.h>.
> I used to just recompile the kernel after changing that value from 20 to
> 256. I guess it's a cleaner way of changing it's value but is _sysctl()
> the only way I can change it?

echo "256" >/proc/sys/net/ipv4/igmp_max_memberships

is nice and easy from boot scripts


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