On Thu, Jun 27, 2002 at 09:06:54PM +0100, Antony Stone wrote: > On Thursday 27 June 2002 8:57 pm, Ramin Alidousti wrote: > > > If I'm not wrong you can always send data even in SYN and SYN/ACK. > > Like Patrick said the default options in the socket interface might > > not do it but I thought I saw some tweaking in one of Richard Steven's > > (god bless his soul) books to push traffic in SYN packets. > > Is that an interesting way to get round packet filtering firewalls ?
Why? The fw would either block the SYN (in case of DENY) or let the SYN and any subsequent packet through... > Send enough data (eg an http request) in a SYN packet so that the application > does the dirty work for you, even if the packet filter isn't going to allow > the connection to get ESTABLISHED ? Again, if the SYN gets through, it's very likely that the connection will get ESTABLISHED. > Or do you have to fiddle with the receiving socket too in order for it to > cope with this ? Good question. dunno. Ramin > Antony.
