Re: Window scaling problem?
On Mon, 11 Dec 2006 18:29:44 +0100 Malte Schröder <[EMAIL PROTECTED]> wrote: > Isn't window scaling something that the tcp-stacks on both ends of the > connection do? AFAIK the routers and firewalls that push the packets around > have nothing to do with it .. but I could be wrong ;) Correct. You've just proved you are more qualified than some firewall product designers. Some "firewall" products like to tamper with the TCP stream however, or are just too stupid to parse options. Alan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Window scaling problem?
On Monday 11 December 2006 11:03, Jan Engelhardt wrote: > Is there some test utility I can run that reliably says if there is a > broken window scaler in the path to an arbitrary host? Isn't window scaling something that the tcp-stacks on both ends of the connection do? AFAIK the routers and firewalls that push the packets around have nothing to do with it .. but I could be wrong ;) BTW. I am seeing similar things when I go through a CheckPoint VPN-1 firewall. Regards -- --- Malte Schröder [EMAIL PROTECTED] ICQ# 68121508 --- pgpn6uPPwQwBI.pgp Description: PGP signature
Re: Window scaling problem?
On Dec 11 2006 10:26, Benny Amorsen wrote: >> "CP" == Cal Peake <[EMAIL PROTECTED]> writes: > >CP> I saw this with kernels v2.6.16, v2.6.17, and v2.6.18. Windows XP >CP> however didn't seem to have any problems. So unless Windows >CP> doesn't have window scaling on by default (or uses a workaround) >CP> it could be a broken kernel. > >XP doesn't do Window Scaling by default, but Vista will. Hopefully >that should flush out the old PIX's. Versions old enough to break >Window Scaling are old enough to be insecure anyway. Is there some test utility I can run that reliably says if there is a broken window scaler in the path to an arbitrary host? -`J' -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Window scaling problem?
> "CP" == Cal Peake <[EMAIL PROTECTED]> writes: CP> I saw this with kernels v2.6.16, v2.6.17, and v2.6.18. Windows XP CP> however didn't seem to have any problems. So unless Windows CP> doesn't have window scaling on by default (or uses a workaround) CP> it could be a broken kernel. XP doesn't do Window Scaling by default, but Vista will. Hopefully that should flush out the old PIX's. Versions old enough to break Window Scaling are old enough to be insecure anyway. /Benny - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Window scaling problem?
CP == Cal Peake [EMAIL PROTECTED] writes: CP I saw this with kernels v2.6.16, v2.6.17, and v2.6.18. Windows XP CP however didn't seem to have any problems. So unless Windows CP doesn't have window scaling on by default (or uses a workaround) CP it could be a broken kernel. XP doesn't do Window Scaling by default, but Vista will. Hopefully that should flush out the old PIX's. Versions old enough to break Window Scaling are old enough to be insecure anyway. /Benny - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Window scaling problem?
On Dec 11 2006 10:26, Benny Amorsen wrote: CP == Cal Peake [EMAIL PROTECTED] writes: CP I saw this with kernels v2.6.16, v2.6.17, and v2.6.18. Windows XP CP however didn't seem to have any problems. So unless Windows CP doesn't have window scaling on by default (or uses a workaround) CP it could be a broken kernel. XP doesn't do Window Scaling by default, but Vista will. Hopefully that should flush out the old PIX's. Versions old enough to break Window Scaling are old enough to be insecure anyway. Is there some test utility I can run that reliably says if there is a broken window scaler in the path to an arbitrary host? -`J' -- - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Window scaling problem?
On Monday 11 December 2006 11:03, Jan Engelhardt wrote: Is there some test utility I can run that reliably says if there is a broken window scaler in the path to an arbitrary host? Isn't window scaling something that the tcp-stacks on both ends of the connection do? AFAIK the routers and firewalls that push the packets around have nothing to do with it .. but I could be wrong ;) BTW. I am seeing similar things when I go through a CheckPoint VPN-1 firewall. Regards -- --- Malte Schröder [EMAIL PROTECTED] ICQ# 68121508 --- pgpn6uPPwQwBI.pgp Description: PGP signature
Re: Window scaling problem?
On Mon, 11 Dec 2006 18:29:44 +0100 Malte Schröder [EMAIL PROTECTED] wrote: Isn't window scaling something that the tcp-stacks on both ends of the connection do? AFAIK the routers and firewalls that push the packets around have nothing to do with it .. but I could be wrong ;) Correct. You've just proved you are more qualified than some firewall product designers. Some firewall products like to tamper with the TCP stream however, or are just too stupid to parse options. Alan - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
