Hello Gao Feng, On Mon, Dec 10, 2012 at 7:02 AM, Gao feng <gaofeng@xxxxxxxxxxxxxx> wrote: > In ipv4,IP_MTU is only supported by getsockopt. > In ipv6,we can use IPV6_MTU to set socket's mtu, > but the return value of getsockopt is the path mtu. > it may make people confusion. > > Add the description of the getsockopt for IPV6_MTU to > tell people the mtu of getting and setting is different. Thank you. I've applied this patch. Cheers, Michael > Signed-off-by: Gao feng <gaofeng@xxxxxxxxxxxxxx> > --- > man7/ipv6.7 | 4 ++++ > 1 files changed, 4 insertions(+), 0 deletions(-) > > diff --git a/man7/ipv6.7 b/man7/ipv6.7 > index e13597c..888c6fa 100644 > --- a/man7/ipv6.7 > +++ b/man7/ipv6.7 > @@ -147,6 +147,10 @@ structure. > .\" should be documented > .TP > .B IPV6_MTU > +Retrieve the current known path MTU of the current socket. > +Only valid when the socket has been connected. > +Returns an integer. > + > Set the MTU to be used for the socket. > The MTU is limited by the device > MTU or the path MTU when path MTU discovery is enabled. > -- > 1.7.7.6 > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Author of "The Linux Programming Interface"; http://man7.org/tlpi/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html