Messages in this thread | | | Date | Wed, 6 Feb 2008 00:50:27 +0300 | From | Evgeniy Polyakov <> | Subject | Re: [PATCH] Add IPv6 support to TCP SYN cookies |
| |
On Tue, Feb 05, 2008 at 09:53:45PM +0100, Andi Kleen (andi@firstfloor.org) wrote: > > How does syncookies prevent windows from growing? > > Syncookies do not allow window scaling so you can't have any windows >64k
Then you meant not windows change, but the fact, that option is ignored as long as sack enable one?
> > Most (if not all) distributions have them enabled and window growing > > works just fine. Actually I do not see any reason why connection > > establishment handshake should prevent any run-time operations at all, > > even if it was setup during handshake. > > TCP only uses options negotiated during the hand shake and syncookies > is incapable to do this.
What about fixing the implementation, so that it could get into account different options too?
> -Andi
-- Evgeniy Polyakov
| |