Hi, On Tue, Jul 29, 2014 at 10:27:42PM +0200, Julien Muchembled wrote: > > Is there documentation for that socket option somewhere? > > 'man 7 ip' and 'man 7 ipv6'
Thanks, will read up.
> For example:
> A --[mtu=1500]-- B --[mtu=1400]-- C
>
> Given a UDP6 socket on A with IPV6_MTU_DISCOVER=IP_PMTUDISC_DO,
> sendto(1452 bytes, B) will succeed
> but sendto(1452 bytes, C) will return EMSGSIZE (except for the first send to
> C)
> Yes, at some point, there are icmp packets.
So (being lazy again, sorry) how is the maximum message size communicated
back to OpenVPN? Ancilliary data again?
> > (Last not least, because I'm too lazy to look: is that patch against
> > git master or against release/2.3?)
>
> master
Thanks. I'll need to look at the code paths, but I think it warrants
inclusion in 2.3 as well - it's not affecting anything that is IPv4,
and fixes a bug for IPv6.
gert
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