[radvd-devel-l] Changing MTU with radvd (AdvLinkMTU in radvd.conf)

Pekka Savola pekkas at netcore.fi
Mon Mar 31 04:59:15 EDT 2008

On Mon, 31 Mar 2008, David Shwatrz wrote:
> I am running 2.6.21 kernel.
> However, as I discovered now after Pekka Savola answer,
> cat /proc/sys/net/ipv6/conf/eth0/mtu gives the MTU which I set in the
> /etc/radvd.conf,
> as expected.
> So I am not sure that the patch is relevant here.

Maybe you can figure that out by checking '/sbin/ip -6 r l default' 
and verifying that MTU is the one you want and that MSS has been 
calculated to be 60 bytes less than MTU.

Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings

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