Re: bizarre TCP behavior

2001-04-20 Thread Stefan Traby
On Sat, Apr 14, 2001 at 03:27:53PM +0100, Alan Cox wrote: > > For example the Zyxel 681 SDSL-Router breaks ECN by > > stripping 0x80 (ECN Cwnd Reduced) but not 0x40 (ECN Echo) > > (TOS bits) on all SYN packets (!). > > > > I complained because of this two times more than a month ago > > but they

Re: bizarre TCP behavior

2001-04-14 Thread Dan Hollis
On Sat, 14 Apr 2001, Alan Cox wrote: > If the router claims to be RFC compliant then you may want to investigate > trading standards bodies. In the UK at least things like the advertising > standards agency get upset by people who claim standards compliance, are shown > not to be compliant and are

Re: bizarre TCP behavior

2001-04-14 Thread Alan Cox
> For example the Zyxel 681 SDSL-Router breaks ECN by > stripping 0x80 (ECN Cwnd Reduced) but not 0x40 (ECN Echo) > (TOS bits) on all SYN packets (!). > > I complained because of this two times more than a month ago > but they do not even respond. If the router claims to be RFC compliant then yo

Re: bizarre TCP behavior

2001-04-14 Thread Stefan Traby
On Wed, Apr 11, 2001 at 02:21:42AM +0200, Andi Kleen wrote: > Try echo 0 > /proc/sys/net/ipv4/tcp_ecn > If it helps complain to the sites that their firewall is broken. Not always firewall related. There are companies like Zyxel that ship broken router too. For example the Zyxel 681 SDSL-Router

Re: bizarre TCP behavior

2001-04-10 Thread Andi Kleen
On Tue, Apr 10, 2001 at 05:35:31PM -0700, Mike Castle wrote: > On Wed, Apr 11, 2001 at 02:21:42AM +0200, Andi Kleen wrote: > > Try echo 0 > /proc/sys/net/ipv4/tcp_ecn > > If it helps complain to the sites that their firewall is broken. > > It's certain that this refers only to the site firewall?

Re: bizarre TCP behavior

2001-04-10 Thread Mike Castle
On Wed, Apr 11, 2001 at 02:21:42AM +0200, Andi Kleen wrote: > Try echo 0 > /proc/sys/net/ipv4/tcp_ecn > If it helps complain to the sites that their firewall is broken. It's certain that this refers only to the site firewall? I had to do this to get to www.ibm.com. :-< mrc -- Mike Cast

Re: bizarre TCP behavior

2001-04-10 Thread Andi Kleen
On Tue, Apr 10, 2001 at 06:24:46PM -0400, Dave wrote: > > I am having a very strange problem in linux 2.4 kernels. I have not set > any iptables rules at all, and there is no firewall blocking any of my > outgoing traffic. At what seems like random selection, I can not connect > to IP's yet I c

Re: bizarre TCP behavior

2001-04-10 Thread Dave
This did fix my problem. Thanks very much, I'll be sure to send a polite message to the admins at sites where I notice this problem! Any detailed info you might have on why this was failing? dave --- This is my signature. There are many like it but this one is mine. On Tue, 10 Apr 2

Re: bizarre TCP behavior

2001-04-10 Thread Gregory Maxwell
On Tue, Apr 10, 2001 at 06:24:46PM -0400, Dave wrote: > I am having a very strange problem in linux 2.4 kernels. I have not set > any iptables rules at all, and there is no firewall blocking any of my > outgoing traffic. At what seems like random selection, I can not connect > to IP's yet I can

bizarre TCP behavior

2001-04-10 Thread Dave
I am having a very strange problem in linux 2.4 kernels. I have not set any iptables rules at all, and there is no firewall blocking any of my outgoing traffic. At what seems like random selection, I can not connect to IP's yet I can get ping replies from them. Most IP's reply just fine, but c